3Com Switch 5500 EI User Manual

3Com® Switch 5500 Family  
Getting Started Guide  
Switch 5500-EI  
Switch 5500G-EI  
www.3Com.com  
Part No. 10014925, Rev. AD  
Published: August, 2007  
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CONTENTS  
Release Notes  
8
Conventions  
8
Accessing the Documentation  
9
Documentation Comments 10  
SWITCH 5500 FAMILY  
Placing Units On Top of Each Other 43  
Packing and Shipping the Switch 5500 51  
3 SETTING UP FOR MANAGEMENT  
Methods of Managing a Switch 56  
Setting Up Your Switch 58  
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B PIN-OUTS  
Switch 5500G-EI (48 Port) 135  
RPS 138  
Purchase Value-Added Services 141  
3Com Network Supervisor 145  
3Com Network Director 146  
3Com Network Access Manager 146  
3Com Enterprise Management Suite 147  
Integration Kit with HP OpenView Network Node Manager 147  
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INDEX  
REGULATORY NOTICES  
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ABOUT THIS GUIDE  
This guide provides all the information you need to install and use the  
following switches in their default state:  
Table 1 Switch 5500 Family  
Switch Model  
SKU Number  
3CR17151-91  
3CR17152-91  
3CR17161-91  
3CR17162-91  
3CR17171-91  
3CR17172-91  
3CR17181-91  
Switch 5500-SI 28-Port  
Switch 5500-SI 52-Port  
Switch 5500-EI 28-Port  
Switch 5500-EI 52-Port  
Switch 5500-EI PWR 28-Port  
Switch 5500-EI PWR 52-Port  
Switch 5500-EI 28-Port FX  
Switch 5500G-EI 24-Port  
3CR17250-91 Includes 3CR17254-91 (chassis)  
and 3C17266 (power supply)  
Switch 5500G-EI 48-Port  
3CR17251-91 Includes 3CR17255-91 (chassis)  
and 3C17267 (power supply)  
Switch 5500G-EI PWR 24-Port  
Switch 5500G-EI PWR 48-Port  
Switch 5500G-EI 24-Port SFP  
3CR17252-91 Includes 3CR17254-91 (chassis)  
and 3C17264 (power supply)  
3CR17253-91 Includes 3CR17255-91 (chassis)  
and 3C17265 (power supply)  
3CR17258-91 Includes 3CR17259-91 (chassis)  
and 3C17266 (power supply)  
All procedures described in this guide apply to all models except where  
stated.  
The guide is intended for network administrators who are responsible for  
installing and setting up network equipment; consequently, it assumes a  
basic working knowledge of LANs (Local Area Networks).  
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8
ABOUT THIS GUIDE  
Release Notes  
The Release Notes provide important information about the current  
software release, including new features, modifications, and known  
problems. You should read the Release Notes before installing the Switch  
If the information in the Release Notes differs from the information in this  
guide, follow the instructions in the Release Notes.  
Conventions  
Table 2 lists conventions that are used throughout this guide.  
Table 2 Notice Icons  
Icon  
Notice Type  
Description  
Information note Information that describes important features or  
instructions  
Caution  
Information that alerts you to potential data loss or  
potential damage to an application, system, or device  
Warning  
Information that alerts you to potential personal injury  
Related  
Documentation  
In addition to this guide, each Switch documentation set includes the  
following:  
Switch 5500 Family Configuration Guide  
This guide contains information about the features supported by your  
Switch and how you can use them to optimize your network.  
Switch 5500 Family Quick Reference Guide  
This guide contains a list of the features supported by the Switch 5500  
Family and a summary of the command line interface commands  
available for the Switch. This guide is also available under the Help  
button on the web interface.  
Switch 5500 Family Command Reference Guide  
This guide provides detailed information about the web interface and  
command line interface that enable you to manage the Switch.  
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Accessing the Documentation  
9
Release Notes  
These notes provide information about the current software release,  
including new features, modifications, and known problems. The  
Release Notes are supplied in hard copy with your Switch.  
Accessing the  
Documentation  
The Switch 5500 Family documentation is available in Adobe Acrobat  
Reader Portable Document Format (PDF) at www.3com.com.  
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10  
ABOUT THIS GUIDE  
Documentation  
Comments  
Your suggestions are very important to us. They will help make our  
documentation more useful to you. Please e-mail comments about this  
document to 3Com at:  
Please include the following information when commenting:  
Document title  
Document part number and revision (on the title page)  
Page number (if appropriate)  
Example:  
Part Number 10014925 rev. AC  
Switch 5500 Family Getting Started Guide  
Page 21  
Please note that we can only respond to comments and questions about  
3Com product documentation at this e-mail address. Questions related  
to technical support or sales should be directed in the first instance to  
your network supplier.  
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INTRODUCING THE  
SWITCH 5500 FAMILY  
1
This chapter contains introductory information about the Switch 5500  
and how it to use it within a network. It includes hardware and software  
feature summaries and contains the following section:  
About the Switch 5500 Family  
Switch 5500 Family — Front View  
Switch 5500 — Rear View Detail  
Default Settings  
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12  
CHAPTER 1: INTRODUCING THE SWITCH 5500 FAMILY  
About the Switch  
5500 Family  
The Switch 5500 Family includes mixed media devices consisting of those  
described in Table 3.  
Table 3 Switch 5500 Family Hardware  
Switch 5500 Family  
Switch 5500-SI 28 Port  
Switch 5500-SI 52 Port  
Switch 5500-EI 28 Port  
Switch 5500-EI 52 Port  
Switch 5500 PWR 28 Port  
Switch 5500 PWR 52 Port  
Switch 5500 FX 28 Port  
Switch 5500G-EI 24 Port  
Switch 5500G-EI 48 Port  
Switch 5500G-EI SFP 24 Port  
24  
48  
24  
48  
4
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
4
24  
48  
4
4
2
24  
2
24 24*  
48 48*  
4
4†  
4†  
24  
2
2
2
1
1
1
*Depending on Power Supply Unit Fitted  
†Combo SFP and 10/100/100 Ports  
The Switch 5500 Family provides high-performance workgroups with a  
backbone to the server connection. You can also add the Switch 5500 to  
any 3Com system as your network grows.  
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About the Switch 5500 Family  
13  
For information about using the software features of the Switch, refer to  
the “Command Reference Guide” located at www.3com.com.  
Summary of Table 4 summarizes the hardware features that are supported by the  
Hardware Features Switch 5500.  
Table 4 Hardware Features  
Feature  
Switch 5500 Family  
Up to 16,000 supported  
Store and Forward  
MAC Addresses  
Forwarding Modes  
Auto-negotiation  
Auto MDI/MDIX  
Supported on all ports  
Supported on all ports. If fiber SFP transceivers are  
used, Auto MDIX is not supported.  
Duplex Modes  
Half and full duplex on all ports  
Flow Control  
In full duplex mode, all ports are supported.  
Supported on all copper ports  
Smart Auto-sensing  
Traffic Prioritization  
Supported (IEEE Std 802.1D, 1998 Edition)  
Eight traffic queues per port  
Power over Ethernet  
(Switch 5500)  
Supported on front panel ports, except for the SFP  
ports. (3CR17171 and 3CR17172 only)  
Power over Ethernet  
(Switch 5500G-EI)  
Supported on all front panel ports, except for the  
SFP ports, when fitted with PoE PSUs (3CR17254  
and 3CR17255).  
Ethernet and Fast Ethernet Auto-negotiating 10BASE-T/100BASE-TX ports or  
Ports  
(Switch 5500)  
100BASE-X ports.  
Fast Ethernet and Gigabit Auto-negotiating  
Ethernet Ports (Switch  
5500G-EI)  
10BASE-T/100BASE-TX/1000BASE-T and SFP ports.  
100BASE-X SFP Ports  
Supports 100BASE-LX10 10km single-mode and  
100BASE-FX 2km multi-mode transceivers.  
1000BASE-X Gigabit  
Ethernet SFP Ports  
Supports fiber Gigabit Ethernet short-wave (SX),  
long-wave (LX), long-haul (LH70), and copper (T)  
transceivers in any combination  
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14  
CHAPTER 1: INTRODUCING THE SWITCH 5500 FAMILY  
Switch 5500 Family  
— Front View  
Figure 1 Switch 5500-SI and EI 28-Port — front view  
Port Status LEDs  
Console Port  
RPS LED  
10/100BASE-TX Ports  
1000BASE-X Ports  
Unit LED  
Mode LED  
Power LED  
Figure 2 Switch 5500-SI and EI 52-Port — front view  
Port Status LEDs  
Console Port Unit LED  
RPS LED  
Mode LED  
PWR LED  
1000BASE-X Ports  
10/100BASE-TX Ports  
Figure 3 Switch 5500-EI 28-Port PWR - front view  
Port Status LEDs  
Console Port  
RPS LED  
3CR17171-91 SuperStack 4 Switch 5500 PWR 28 Port  
Green=Status  
Yellow=Packet  
Red=PoE  
10/100BASE-TX Ports  
1000BASE-X Ports  
Unit LED  
Mode LED  
Power LED  
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Switch 5500 Family — Front View  
15  
Figure 4 Switch 5500-EI 52-Port PWR - front view  
Port Status LEDs  
Console Port Unit LED  
RPS LED  
Mode LED  
3CR17172-91 SuperStack 4 Switch 5500 PWR 52 Port  
Green=Status  
Yellow=Packet  
Red=PoE  
PWR LED  
10/100BASE-TX Ports  
1000BASE-X Ports  
Figure 5 Switch 5500-EI FX 28-Port — front view  
Console Port  
Port Status LEDs  
RPS LED  
Unit LED  
Speed  
Duplex  
RPS  
Green=Speed  
Yellow=Duplex  
PWR  
1000Base-X  
100Base-FX  
Power LED  
Mode LED  
100BASE-X Ports  
Two 10/100/1000BASE-T Ports  
Two 1000BASE-X Ports  
Switch 5500G-EI Figure 6 Switch 5500G-EI (24 port) — front view  
Port Status LEDs  
PWR LED  
RPS LED  
Unit LED  
3CR17251-91 SuperStack  
4
Switch 5500G-EI 24-Port  
Status:Green=10Mbps Yellow=10Mbps Flashing=Disabled Packet:Green=Full Duplex Yellow=Half Duplex Power:Green=Delivering Power Yellow=Fault Flashing Green=Over Budget  
13 14 15 16 17 18 19 20 21 10 22 11 23 12 24  
1
2
3
4
5
6
7
8
9
PWR  
RPS  
Mode:  
100% Green=Status  
Unit  
Console  
21  
24  
22  
23  
80%  
60%  
Yellow=Packet  
Red=POE  
MOD  
40%  
20%  
STK  
Stack LED  
Module LED  
Mode LED  
Console Port  
Dual Personality  
10/100/1000BASE-T/  
10/100/1000BASE-T Ports  
1000BASE-X SFP Ports  
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16  
CHAPTER 1: INTRODUCING THE SWITCH 5500 FAMILY  
Figure 7 Switch 5500G-EI (48 port) — front view  
RPS LED  
Power LED  
Mode LED  
Console Port  
Unit LED  
Port Status LEDs  
SuperStack  
4
Switch 5500G-EI 48-port  
Status:Green=10Mbps Yellow=10Mbps Flashing=Disabled Packet:Green=Full Duplex Yellow=Half Duplex Power:Green=Delivering Power Yellow=Fault Flashing Green=Over Budget  
Mode:  
100%  
80%  
60%  
40%  
20%  
1
13  
2
14  
3
15  
4
16  
5
17  
6
18  
7
19  
8
20  
9
21  
10  
22  
11  
23  
12  
24  
25  
37  
26  
38  
27  
39  
28  
40  
29  
41  
30  
42  
31  
43  
32  
44  
33  
45  
34  
46  
35  
47  
36  
48  
Green=Status  
Yellow=Packet  
Red=POE  
PWR  
RPS  
45  
48  
46  
47  
MOD  
STK  
Stack  
LED  
10/100/1000BASE-T Ports  
Module LED  
Dual Personality  
10/100/1000BASE-T/  
1000BASE-X SFP Ports  
Figure 8 Switch 5500G-EI SFP (24 port) — front view  
Port Status LEDs  
RPS LED  
Power LED  
13  
1
14  
2
15  
3
16  
4
17  
5
18  
6
3CR17259-91 SuperStack 4 Switch 5500G-EI SFP 24-Port  
19  
7
20  
8
21  
9
22  
23  
10  
11  
24  
12  
25/11  
26/12  
PWR  
RPS  
27/23  
28/24  
1000BASE-X:  
Green=1000Mbps Flashing Yellow=POST failed  
S
D
S
D
S
D
S
D
10/100/1000BASE-TX:  
S(Speed):Green=1000Mbps Yellow=10/100Mbps  
D(Duplex):Green=Full Duplex Yellow=Half Duplex  
STK  
MOD  
10/100/1000Base-TX  
1000Base-X  
1000Base-X  
Stack  
LED  
Mode  
LED  
Unit LED  
10/100/1000BASE-TX Ports  
Console Port  
1000BASE-X Ports  
WARNING: The RJ-45 ports are shielded RJ-45 data sockets. You cannot  
use them as standard traditional telephone sockets, or to connect the  
unit to a traditional PBX or public telephone network. Only connect RJ-45  
data connectors, network telephony systems, or network telephones to  
these sockets. You can connect either shielded or unshielded data cables  
with shielded or unshielded jacks to these data sockets.  
10BASE-T/ The 10BASE-T/100BASE-TX/1000BASE-T ports have RJ-45 connectors and  
100BASE-TX/ are configured as Auto MDIX (cross-over).  
1000BASE-T Ports  
The default state for these ports is auto-negotiation enabled, where the  
links speed, duplex, and flow control modes are automatically detected  
to provide the highest available bandwidth with the link partner.  
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Switch 5500 Family — Front View  
17  
You can disable auto-negotiation. You can manually configure these  
ports to 10 Mbps half duplex, 100 Mbps half duplex,  
10 Mbps full duplex, or 100 Mbps full duplex. It is not possible to  
manually configure a 1000 Mbps link because auto-negotiation is  
mandatory in the 1000 Mbps standard. If you disable auto-negotiation,  
Auto MDIX cannot function and the ports become fixed in MDIX  
(cross-over) mode.  
If you disable auto-negotiation on a 1000 Mbps port, the speed drops to  
the highest available speed, which is 100 Mbps by default.  
1000BASE-X SFP Ports The 1000BASE-X SFP (Small Form Factor Pluggable) ports support fiber  
Gigabit Ethernet short-wave (SX), long-wave (LX), long-haul (LH70), and  
copper (T) SFP Transceivers in any combination. This offers you the  
flexibility of using SFP transceivers to provide connectivity between the  
Switch and remote 1000 Mbps workgroups, or to create a high capacity  
aggregated link backbone connection.  
The default state for these ports is auto-negotiation enabled, where the  
speed, duplex and flow control modes are negotiated. As the speed and  
duplex modes are fixed by the media type, only the flow control is  
disabled (except 1000BASE-T where auto-negotiation is mandatory) and  
the flow control setting can be manually configured.  
You can also use these ports for stacking the 5500 SI and EI. For  
information about stacking these switches, see the section entitled  
“Guidelines For Interconnecting Units” on page 78.  
100BASE-X SFP Ports The Switch 5500-EI FX has 24 100BASE-X SFP ports. These are 100Mbps  
(Switch 5500-EI FX ports that can use multi-mode fiber optic cables of up to 2km and  
only) single-mode fiber optic cables of up to 10km.  
You must manually configure duplex and flow control.  
The Switch 5500-EI FX supports copper transceivers on the Gigabit SFP  
ports only.  
Console Port The console port allows you to connect a terminal and perform remote or  
local out-of-band management. As the console port on the Switch is an  
RJ-45 port, you must connect an RJ-450 to DB9 converter cable to a  
standard null modem cable in order to connect a terminal.  
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18  
CHAPTER 1: INTRODUCING THE SWITCH 5500 FAMILY  
Unit LED The Unit LED is a seven segment display visible on the front of the Switch.  
The Unit LED indicates the unit number in a fabric, POST test ID, and  
software upgrade information. In the unlikely event of a hardware fault  
occurring, you can use the Unit LED to help diagnose the problem. For  
Problems Indicated by LEDs” on page 82.  
LEDs Table 5 lists the LEDs visible on the front of the Switch, and how to read  
their status according to color. For information on using the LEDs for  
problem solving, see “Checking for Correct Operation of LEDs” on  
page 43.  
Table 5 LED behavior  
LED  
Color  
Indicates  
10/100/1000BASE-TX Port LEDs  
Speed  
Duplex  
PoE  
Green  
A high speed (1000 Mbps) link is present, blinking off  
for every packet received or transmitted.  
Yellow  
A low speed (10/100 Mbps) link is present, blinking  
off for every packet received or transmitted.  
Yellow flashing  
Off  
The port has failed POST.  
No link is present.  
Green  
Full duplex, blinking off for every packet received or  
transmitted.  
Yellow  
Half duplex, blinking off for every packet received or  
transmitted.  
Yellow flashing  
Off  
The port has failed POST.  
No link is present.  
Green  
Power is being delivered to the port.  
Green flashing  
Port power has exceeded limit or is unable to supply  
power due to unit being over budget.  
Yellow  
PoE error, no power supplied on port.  
The port has failed post.  
Yellow flashing  
Off  
No power is being delivered.  
10/100BASE-T/TX Ports LEDS  
Speed  
Green  
A high speed (100 Mbps) link is present, blinking off  
for every packet received or transmitted.  
Yellow  
A low speed (10 Mbps) link is present, blinking off for  
every packet received or transmitted.  
Yellow flashing  
The port has failed POST.  
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Switch 5500 Family — Front View  
19  
LED  
Color  
Off  
Indicates  
No link is present.  
Duplex  
Green  
Full duplex, blinking off for every packet received or  
transmitted.  
Yellow  
Half duplex, blinking off for every packet received or  
transmitted.  
Yellow flashing  
Off  
The port has failed POST.  
No link is present.  
PoE  
Green  
Power is being delivered to the port.  
Green flashing  
Port power has exceeded limit or is unable to supply  
power due to unit being over budget.  
Yellow  
PoE error, no power supplied on port.  
The port has failed post.  
Yellow flashing  
Off  
No power is being delivered.  
1000BASE-X SFP Port LEDs  
Speed  
Green  
A 1000 Mbps link is present.  
The port has failed post.  
No link is present.  
Yellow flashing  
Off  
Duplex  
Green  
Full duplex packets are being transmitted/received on  
the port.  
Yellow  
Half duplex packets are being transmitted/received on  
the port.  
Yellow flashing  
Off  
Port failed POST.  
No links is present.  
100BASE-X SFP Port LEDs  
Speed  
Green  
A 100 Mbps link is present.  
The port has failed post.  
No link is present.  
Yellow flashing  
Off  
Duplex  
Green  
Full duplex packets are being transmitted/received on  
the port.  
Yellow  
Half duplex packets are being transmitted/received on  
the port.  
Yellow flashing  
Off  
Port failed POST.  
No links is present.  
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20  
CHAPTER 1: INTRODUCING THE SWITCH 5500 FAMILY  
LED  
Color  
Indicates  
Unit LED  
Green  
Power on Self Test (POST) is in progress. During POST  
a test ID number appears in the Unit LED (seven  
segment display)  
or  
Software download is in progress. During software  
download, a clockwise cycling bar appears in the Unit  
LED.  
Green flashing  
The Switch has failed POST. The Unit LED flashes the  
number of the test that has failed.  
Green flashing ‘f’ There has been a fan failure.  
Green flashing ‘t’ The Switch is over temperature and unit temperature  
is critical.  
Stack LED  
Green  
The XRN stack is functioning in resilient mode. Loop  
cable is attached.  
Green flashing  
Yellow  
Switch is not compatible with the other Switches in  
the stack.  
The XRN stack is functioning without the loop  
connection.  
Off  
Stacking Cables are not connected.  
Module LED (Switch 5500G-EI only)  
Green  
The Module is installed and operating normally.  
Yellow flashing  
Off  
The Module is installed but not supported or faulty.  
The Module is not installed.  
Mode LED  
Duplex  
Yellow  
Green  
Red  
10/100/1000 Duplex and Activity, 1000 SFP Duplex  
and Activity, or Stack Activity.  
Speed  
10/100/1000 Port Speed and Activity, 1000 SFP  
Status and Activity, or Stack Status and Activity.  
PoE  
10/100/1000 port showing PoE information.  
RPS LED  
Green  
Yellow  
Off  
AC and RPS supply connected.  
AC failed or not connected. RPS supply is OK.  
There is no RPS supply connected.  
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Switch 5500 — Rear View Detail  
21  
LED  
Color  
Indicates  
PWR LED  
Green  
The Switch is powered-up and operating normally.  
Self Test (POST) or Software Download is in progress.  
One or more ports have failed POST.  
Green flashing  
Yellow flashing  
Red  
The Switch has failed its Power On Self Test.  
Off  
The Switch is not receiving power or there is a fault  
with the Power Supply Unit.  
Switch 5500 — Rear  
View Detail  
Power Socket  
Figure 9 Switch 5500-SI, EI and FX — rear view  
Open Book Warning Labels  
NULL  
100-240V; 50/60Hz; 2.5A  
~
-48 -60V;2.0A  
Redundant Power System Socket  
Earthing Screw  
Figure 10 Switch 5500-EI PWR - rear view  
Open Book Warning Labels  
Power Socket  
NULL  
100-240V; 50/60Hz; 8.0A  
~
-53 -55V;19.5A  
Redundant Power System Socket  
Earthing Screw  
Switch 5500G-EI Figure 11 Switch 5500G-EI — rear view  
Stack LEDs  
Expansion Module Slot  
Power Socket  
Switch 5500G PoE PSU 24-Port  
NULL  
UP  
DOWN  
Stacking: Green=OK, Flashing Green=Traffic, Yellow=Link Fault,  
Yellow Flashing=Stack Fault  
-52  
-
-55V;19.5A  
Handle  
Redundant Power System Socket  
Stacking Cable Port (Up)  
Stacking Cable Port (Down)  
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22  
CHAPTER 1: INTRODUCING THE SWITCH 5500 FAMILY  
Expansion Module You can use this slot to install an Expansion Module. The Switch 5500G  
Slot (Switch 5500G-EI Family provides one expansion module slot on the rear panel in which you  
Only) can use an 8-port 1000 Mbps SFP module, a 1-port 10 Gbps XENPAK  
module, or a 2-port 10 Gbps XFP module.  
8-port 1000 Mbps SFP module  
This module, shown in Figure 12, provides eight 1000 Mbps 1000Base-X  
SFP transceiver ports.  
Figure 12 8-port 1000 Mbps SFP module  
(1) Port status LEDs  
2) SFP ports  
3) Module power LED  
Notes:  
The types of available SFP modules may change over time. Refer to  
www.3com.com for the latest transceiver support.  
For SFP module specifications, refer to 3Com Web site at  
www.3com.com  
2-port 10 Gbps XFP module  
This module, shown in Figure 13, provides two 10 Gbps XFP optical ports.  
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Switch 5500 — Rear View Detail  
23  
Figure 13 2-port 10 Gbps XFP module  
(1) Module power LED (2) 10 Gbps XFP optical  
ports  
(3) 10 Gbps XFP optical ports  
Table 6 lists the available XFP transceivers.  
Table 6 XFP transceivers supported by 2-port 10 Gbps XFP module  
Type  
Model  
XFP transceivers  
3CXFP90 10GBASE-LRM  
3CXFP92 10GBASE-LR  
3CXFP94 10GBASE-SR  
3CXFP95 10GBASE-CX4  
3CXFP96 10GBASE-ER  
Notes:  
The type of 10 Gbps XFP module may be different from those listed  
above. For the most up-to-date information, refer to www.3com.com.  
For XFP transceiver specifications, refer to 3Com’s Web site at  
www.3Com.com.  
1-port 10 Gbps XENPAK module  
This module, shown in Figure 14, provides one 10 Gbps XENPAK  
transceiver port.  
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24  
CHAPTER 1: INTRODUCING THE SWITCH 5500 FAMILY  
Figure 14 1-port 10 Gbps XENPAK module  
(1) Module power (2) Port status LED  
LED  
(3) 10 Gbps XENPAK  
optical/electrical port  
The Table 7 lists the available XENPAK optical modules:  
Table 7 XENPAK optical port module supported by 1-port 10 Gbps XENPAK  
module  
Table 8 Type  
Table 9 Model  
XENPAKs that are supported  
3CXENPAK91 10GBASE-LX4  
3CXENPAK92 10GBASE-LR  
3CXENPAK93 10GBASE-T  
3CXENPAK94 10GBASE-SR  
3CXENPAK95 10GBASE-CX4  
3CXENPAK96 10GBASE-ER  
XENPAK optical module  
For specifications of XENPAK Transceivers, refer to 3Com’s Web site at  
www.3Com.com.  
WARNING: When an Expansion Module is not installed, ensure that the  
blanking plate is fitted by tightening all screws with a suitable tool.  
Failure to fit a blanking plate may void the product warranty.  
Power Socket The Switch automatically adjusts its power setting to any supply voltage  
in the range 100-240 VAC.  
Open Book Warning Before installing or removing any components from the Switch 5500  
Labels Family or carrying out any maintenance procedures, you must read the  
safety information provided in Appendix A of this guide.  
AVERTISSEMENT: Avant d'installer ou d'enlever tout composant des  
commutateurs de la gamme Switch 5500 ou d'entamer une procédure  
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Switch 5500 — Rear View Detail  
25  
de maintenance, lisez les informations relatives à la sécurité qui se  
trouvent dans l'annexe A de ce guide.  
VORSICHT:Bevor Sie Komponenten der Switch 5500-Baureihe  
installieren oder deinstallieren und bevor Sie Wartungsarbeiten  
ausführen, müssen Sie die in Anhang A dieses Handbuchs aufgeführten  
Sicherheitshinweise lesen.  
ADVERTENCIA: Antes de instalar o extraer cualquier componente del  
Switch 5500 Family o de realizar tareas de mantenimiento, debe leer la  
información de seguridad facilitada en el Apéndice A de esta guía.  
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26  
CHAPTER 1: INTRODUCING THE SWITCH 5500 FAMILY  
AVVERTENZA: Prima di installare o rimuovere qualsiasi componente  
dello Switch 5500 Family o di eseguire qualsiasi procedura di  
manutenzione, leggere le informazioni di sicurezza riportate  
nell'Appendice A di questa guida.  
OSTRZEŻENIE: Przed instalacją lub usunięciem jakichkolwiek elementów  
z przełącznika z rodziny 5500 lub przeprowadzeniem prac  
konserwacyjnych należy zapoznać się z informacjami o bezpieczeństwie  
zawartymi w Załączniku A niniejszego podręcznika.  
Redundant Power For protection against an internal power supply failure, you can use this  
System Socket socket to connect the Switch to a -48 DC Redundant Power System.  
Stacking Cable Ports You can use these ports to connect the following cables:  
(Switch 5500G-EI)  
Stacking Cable (3C17262) — this cable enables you to stack together  
two switches up to three rack units apart.  
Resilient Stacking Cable (3C17263) — this cable enables you to stack  
together two switches up to sixteen rack units apart.  
You can stack together any combination of 5500G-EI 24 port and 48 port  
units, up to a maximum of eight units.  
For more information on how to connect a stacking cable to your Switch  
units, refer to the Installation Guide that accompanies your cable.  
You canno create a Fabric by interconnecting a 3Com Switch 5500G with  
any other 3Com device (such as a 5500-EI) or mix Enhanced Image (EI)  
Switch 5500 units with Standard Image (SI) units.  
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Default Settings  
27  
Default Settings  
Table 10 shows the default settings for the Switch 5500 Family:  
Table 10 Default Settings  
Feature  
Switch 5500  
Enabled  
Automatic IP Configuration  
Port Status  
Enabled  
Port Speed  
Auto-negotiated  
Auto-negotiated  
Duplex Mode  
Power over Ethernet  
Flow Control  
Enabled (3CR17171-91 and 3CR17172-91 only)  
Auto-negotiated  
Enabled  
Broadcast Storm Control  
Virtual LANs (VLANs)  
All ports belong to the untagged Default VLAN  
(VLAN 1) with IEEE Std 802.1Q-1998 learning  
operational  
Management VLAN  
Fixed as VLAN 1 on 5500-SI units. Can be any  
VLAN for 5500-EI/5500G-EI units.  
Link Aggregation Control  
Protocol (LACP)  
Disabled per port  
IP Multicast Filtering  
Filtering enabled  
Rapid Spanning Tree Protocol Enabled  
Fast Start  
Enabled on front panel ports  
RMON Alarm  
Enabled  
Disabled  
Webcache Support  
Traffic Prioritization  
All ports prioritize NBX VoIP traffic (LAN and IP).  
All ports set to “best effort” for all other traffic.  
Port Security  
Disabled per port  
Disabled  
Configuration Save and  
Restore  
Spanning Tree Protocol  
Smart Auto-sensing  
Enabled  
Enabled  
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28  
CHAPTER 1: INTRODUCING THE SWITCH 5500 FAMILY  
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INSTALLING THE SWITCH  
2
Switch 5500. It covers the following topics:  
Connecting a Redundant Power Supply  
Placing Units On Top of Each Other  
The Power-up Sequence  
SFP Operation  
Packing and Shipping the Switch 5500  
WARNING: Safety Information. Before installing or removing any  
components from the Switch 5500 or carrying out any maintenance  
procedures, you must read the safety information provided in Appendix A  
of this guide.  
AVERTISSEMENT: Consignes de sécurité. Avant d'installer ou d'enlever  
tout composant du Switch 5500 ou d'entamer une procédure de  
maintenance, lisez les informations relatives à la sécurité qui se trouvent  
dans l'Appendice A de ce guide.  
VORSICHT: Sicherheitsinformationen. Bevor Sie Komponenten aus  
dem Switch 5500 entfernen oder dem Switch 5500 hinzufuegen oder  
Instandhaltungsarbeiten verrichten, lesen Sie die Sicherheitsanweisungen,  
die in Appendix A (Anhang A) in diesem Handbuch aufgefuehrt sind.  
ADVERTENCIA: Información de seguridad. Antes de instalar o extraer  
cualquier componente del Switch 5500 o de realizar tareas de  
mantenimiento, debe leer la información de seguridad facilitada en el  
Apéndice A de esta guía del usuario.  
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30  
CHAPTER 2: INSTALLING THE SWITCH  
AVVERTENZA: Informazioni di sicurezza. Prima di installare o  
rimuovere qualsiasi componente dal Switch 5500 o di eseguire qualsiasi  
procedura di manutenzione, leggere le informazioni di sicurezza riportate  
nell'Appendice A della presente guida per l'utente.  
OSTRZEŻENIE: Informacje o zabezpieczeniach. Przed instalacją lub  
usunięciem jakichkolwiek elementów z product lub przeprowadzeniem  
prac konserwacyjnych należy zapoznać się z informacjami o  
bezpieczeństwie zawartymi w Załączniku A niniejszego podręcznika.  
Package Contents  
The Switch 5500 packaging contains the following for all units:  
Switch unit  
Release Notes  
RPS -48V DC Connector  
Unit Information Labels  
Warranty Information  
RPS Flyer  
Power Cord  
Console Cable (RJ-45)  
RPS Connector (and backshell)  
RPS Connector Cable Tie  
Mounting brackets  
Screws  
4 x Rubber feet  
Table 11 below details the packaging contents specific to each unit in the  
Switch 5500 Family.  
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Choosing a Suitable Site  
31  
Table 11 Package Contents  
Blanking Plate  
12A RPS Connector and Backshell  
(incl. cable tie and earthing lead)  
25A RPS Connector and Backshell  
(incl. cable tie and earthing lead)  
2 x Front Securing Brackets  
2 x Back Securing Brackets  
4 x Screws  
6 x Screws  
Choosing a Suitable  
Site  
The Switch 5500 Family is suited for use in an internal wiring closet, a  
network room, or telecommunications room, where you can mount it in a  
standard 19-inch equipment rack or leave it free-standing.  
CAUTION: Ensure that the ventilation holes are not obstructed.  
When deciding where to position the switch, ensure that:  
The cabling is located away from:  
sources of electrical noise, such as radios, transmitters, and  
broadband amplifiers.  
power lines and fluorescent lighting fixtures.  
The switch is accessible and cables can be connected easily.  
Water or moisture cannot enter the switchs case.  
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32  
CHAPTER 2: INSTALLING THE SWITCH  
Air flow is not restricted around the switch or through the vents in the  
side of the switch. 3Com recommends that you provide a minimum of  
25 mm (1 in.) clearance.  
The air temperature around the switch does not exceed 40 °C (104  
°F).  
If the switch is installed in a 19-inch rack or closed assembly, its local air  
temperature may be greater than room ambient temperature.  
The air is as free from dust as possible.  
The switch is situated away from conductive (electrical) dust sources;  
laser printers, for example.  
The unit is installed in a clean, air conditioned environment.  
The AC supply used by the switch is separate from the AC supply used  
by units that generate high levels of AC noise; air conditioning units,  
for example.  
No more than four switch units are placed on top of one another if  
the units are free-standing.  
Rack-mounting  
The Switch 5500 is 1U high and will fit in most standard 19-inch racks.  
CAUTION: Disconnect all cables from the switch before continuing.  
Remove all self adhesive pads from the underside of the switch if they  
have been fitted.  
CAUTION: If you use a shelf or support, ensure that it will not obstruct  
the air flow through the switch’s side panels.  
Switch 5500 (non To rack-mount your Switch 5500 (non PoE):  
PoE)  
1 Place the switch the right way up on a hard flat surface with the front  
facing towards you.  
2 Place a securing bracket over the mounting holes on one side of the front  
of the switch, as shown in Figure 15.  
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Rack-mounting  
33  
3 Insert the two screws and tighten them with a suitable screwdriver.  
Figure 15 Fitting a front bracket for rack-mounting  
You must use the screws supplied with the securing brackets. Damage  
caused to the unit by using incorrect screws invalidates your warranty.  
4 Repeat steps 2 and 3 for the other side of the switch.  
5 Insert the switch into the 19-inch rack and secure with suitable screws  
(not provided). Ensure that the ventilation holes are not obstructed.  
6 Connect the network cabling.  
7 Place a unit information label on the unit in an easily accessible position.  
The unit information label shows the switchs:  
3Com product name  
3Com 3C number  
Unique MAC address (Ethernet address)  
Serial number  
You may need this information if you contact 3Com for Technical  
Support.  
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34  
CHAPTER 2: INSTALLING THE SWITCH  
Switch 5500 and To rack-mount the front of your Switch 5500 and Switch 5500G-EI (PoE):  
Switch 5500G-EI (PoE)  
1 Place the switch the right way up on a hard flat surface, with the front  
facing towards you.  
2 Place a securing bracket over the mounting holes on one side of the front  
of the switch, as shown in Figure 15.  
3 Insert the two screws and tighten them with a suitable screwdriver.  
4 Repeat steps 1 and 2 for the other front securing bracket.  
You must use the screws supplied with the securing brackets. Damage  
caused to the unit by using incorrect screws invalidates your warranty.  
5 Insert the switch into the 19-inch rack and secure with suitable screws  
(not provided). Ensure that the ventilation holes are not obstructed.  
To rack mount the rear of your switch:  
1 Place a rear rail bracket over the mounting holes on one side of the rear  
of the switch, as shown in Figure 16.  
The bracket has two mounting positions. The one you choose depends  
on the rack depth. Table 12 describes the correct positions on which to  
mount the bracket:  
Table 12 Rear rail bracket mounting points  
Distance from Front to Rear  
37cm — 25cm  
Mounting Positions  
Middle mounting point  
Rear mounting point  
43cm — 56cm  
2 Insert the screw and tighten it with a suitable screwdriver.  
3 Repeat steps 1 and 2 for the other rear securing bracket.  
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Connecting a Redundant Power Supply  
35  
Figure 16 Fitting a rear rail bracket for rack-mounting  
4 Insert the switch into the 19-inch rack and secure it with suitable screws  
(not provided). Ensure that the ventilation holes are not obstructed.  
5 Connect the network cables.  
6 Place a unit information label on the unit in an easily accessible position.  
The unit information label shows the switchs:  
3Com product name  
3Com 3C number  
Unique MAC address (Ethernet address)  
Serial number  
You may need this information if you contact 3Com for Technical  
Support.  
Connecting a  
Redundant Power  
Supply  
The Switch 5500 Family has a -48V DC Redundant Power Supply socket.  
WARNING: Only properly trained and qualified personnel should install  
the Redundant Power Supply (RPS).  
WARNING: Make sure to read these instructions in conjunction with the  
RPS flyer and the safety and installation instructions supplied with your  
RPS.  
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36  
CHAPTER 2: INSTALLING THE SWITCH  
WARNING: When powering any Switch 5500 from an RPS, make sure  
that the unit is earthed (grounded) by either connecting the power cord  
to the unit or by connecting the earth terminal on the rear of the unit to  
a reliable electrical earth (or by connecting both). Ensure that the earth  
connection is made before connecting the DC supply from the RPS.  
3Com switches that support -48V DC RPS inputs, and are PoE enabled,  
can only be powered by an RPS that complies with the isolation  
requirements of IEEE-Std 802.3af. Non PoE enabled switches do not have  
this restriction.  
WARNING: Do not use a standard 'positive-earthed' -48V redundant  
power system suitable for use with telecommunications equipment with  
the 3Com Power-over-Ethernet (PoE) network switches. In order to meet  
the IEEE 802.3af (PoE) specification, the -48V output must be isolated  
from earth (ground) and meet the isolation requirements in that  
specification.  
WARNING: Any RPS must be approved as a SELV output in accordance  
with IEC 60950-1/UL 60950-1/EN 60950-1.  
WARNING: The characteristics of the Switch 5500 DC supply input are  
provided in Appendix C on page 127.  
You can power the Switch 5500 using three methods:  
AC Mains only — this does not offer any power redundancy. If the  
AC mains supply or the AC power supply fails, the switch powers off.  
AC Mains and -48V DC (primary supply) — the internal AC supply  
acts as the backup in the event of a DC power failure.  
DC only — the switch does not need an AC supply and the resiliency  
is provided by the DC supply. This is useful in environments where only  
DC power is available.  
The RPS provides three main benefits:  
Power Redundancy — if a switch is powered from the mains supply  
unit, a failure of the internal power supply causes the switch to fail.  
You can avoid this by connecting both the AC and DC RPS supplies to  
the switch. You can also add redundancy to the DC power by using  
(N+1) DC power supplies to further increase the availability of the  
system.  
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Connecting a Redundant Power Supply  
37  
Uninterruptable Power — the system allows easy connection and  
maintenance of batteries to the RPS shelf to further increase the  
availability of the system.  
Additional Power to PoE Ports — the PoE switchs internal AC  
Power Supply provides enough power for most network applications.  
You can use the RPS to supplement power (up to a maximum of  
15.4W), including full backups of all PoE devices on the network.  
Table 13 outlines the behavior of the switch when changes occur to the  
power system, such as removing the AC mains cable when the RPS is  
attached. The responses to the different power inputs are controlled by  
the switchs internal power supply and not by the RPS.  
Table 13 Switch Power Inputs  
Power Input before Power Input after  
User Intervention  
AC mains and RPS  
AC mains and RPS  
User Intervention Correct Response  
RPS only  
The unit remains powered by the RPS.  
AC mains only  
The unit is powered by the AC mains.  
PoE is dropped on all ports, however  
the unit does not reset. PoE restarts  
and is powered by the remaining  
power from the AC mains. PoE ports  
will be dropped depending on their  
preset priority level.  
The total power available to the  
switch may be less than when  
powered from the RPS. Some PoE  
ports may be dropped because they  
are unable to obtain the power they  
require.  
RPS only  
AC mains and RPS  
AC mains and RPS  
The unit remains powered by the RPS.  
AC mains  
The unit is powered by the RPS. Full  
PoE power can be enabled on all  
ports.  
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38  
CHAPTER 2: INSTALLING THE SWITCH  
Specifying the 3Coms redundant power solution allows you to use any off-the-shelf  
Redundant Power -48V DC RPS that meets the requirements defined in Appendix C on  
System page 127.  
For an approved vendor list, more details about purchasing the 3Com  
recommended RPS, and a full set of requirements go to:  
http://www.3Com.com/RPS  
The 3Com recommended RPS generates -48V DC power using power  
supply units (or rectifiers). The outputs of the rectifier(s) are connected  
together so that you can increase the total -48V power available by  
adding rectifiers. For example, three 1500W rectifiers can provide up to  
4500W. Hot removal or insertion of a rectifier does not affect the -48V  
DC output voltage.  
Table 14 shows an example of the total power available from several  
1500W rectifiers.  
A minimum of two rectifiers are required for each shelf to provide N+1  
rectifier redundancy.  
Table 14 Power Availability  
Rectifiers  
1
2
3
4
5
6
No Rectifier  
Redundancy  
1500W 3000W  
4500W  
6000W  
7500W 9000W  
N+1 Rectifier  
Redundancy  
-
1500W  
3000W  
4500W  
6000W 7500W  
The unearthed -48V DC power distribution provides the mechanism to  
connect to the Switch 5500. The distribution consists of several circuit  
breakers and connection terminals for the positive (common) and  
negative -48V outputs. Individually connect each Switch 5500 to a circuit  
breaker terminal.  
You can also connect a battery to battery terminals prior to the DC power  
distribution to provide uninterrupted power and to be protected against  
the loss of AC mains power.  
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Connecting a Redundant Power Supply  
39  
3Coms RPS solution uses -48V DC power distribution. The RPS system  
provides bulk -48V DC power that is separately distributed to a number  
of network switches.  
Each RPS consists of a shelf that can house from one to six rectifiers, a  
Distribution Module, and a Management Module.  
Connecting the When connecting the RPS to the switch, the circuit breaker and 2-core  
Switch to the cables need to be matched to the switchs power rating. Table 15 shows  
Redundant Power the recommended circuit breaker and cable rating for the Switch 5500.  
System The recommended cable length should not exceed three metres (9.84  
feet).  
Table 15 Switch 5500 Circuit Breaker and Cable Ratings  
Circuit Breaker Minimum 2-Core Cable Diameter  
Non PoE  
PoE  
6A C type  
18 AWG (solid or stranded cable)  
12 AWG (solid or stranded cable)  
25A C type  
WARNING: Make sure to follow the RPS Manufacturers  
recommendations when connecting the cable to the RPS.  
WARNING: Ensure that the circuit breaker in the RPS is in the open (off)  
position when connecting the cable to the RPS and the cable and  
connector to the switch.  
WARNING: You must ensure that the positive terminal on the switch is  
connected to the positive (common) terminal of the RPS and that the  
negative terminal on the switch is connected to the negative (circuit  
breaker) terminal of the RPS.  
Figure 17 shows how to connect the power supply to the RPS socket in  
the back of the switch. Use the cable tie supplied with your switch to  
support the cable in the back of the RPS connector as shown in Figure 17.  
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40  
CHAPTER 2: INSTALLING THE SWITCH  
Figure 17 RPS Connection to the Switch  
NULL  
-
+
;2.0A  
-60V  
-48  
;1.0A  
;50/60Hz  
100-240V  
~
Cable Tie  
NULL  
-48 -60V;2 0A  
Null  
Pinout  
-
+
When the RPS is connected to the switch, you can move the circuit  
breaker in the RPS to the closed (on) position and the switch will be  
powered by the -48V DC power.  
The -48V DC power takes priority over the AC mains and powers the  
switch if it is connected.  
Connecting the Use the earthing cable that accompanies your switch if the length is  
Earthing Cable suitable. Alternatively use the earthing cable specification as defined in  
Appendix C on page 127.  
The earthing cable is only required if the switch is powered by the RPS  
only.  
The recommended cable length should not exceed three metres (9.84  
feet).  
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Connecting a Redundant Power Supply  
41  
RPS LED The RPS status LED on the front of the Switch 5500 indicates the status of  
the RPS and AC supplies as shown in Table 16.  
Table 16 RPS LED Colors  
Color  
Green  
Yellow  
State  
The AC and RPS supply is connected.  
The AC supply has failed or is not connected. The RPS  
supply is connected.  
Off  
There is no RPS supply connected.  
Using Power over The Switch 5500G-EI Power over Ethernet (PoE) units can supply power  
Ethernet to any IEEE 802.3af compliant device through any of its front panel ports  
over a Category 5 or Category 5e Ethernet cable. The same cable  
connects the device to the network.  
The Switch 5500 units can supply power through the 10/100 ports only.  
Power over Ethernet is a self-configuring protocol. When you plug a PoE  
compliant device into one of the ports on the switch, the switch supplies  
the power required to the device, providing that the total power budget  
for the switch is not exceeded.  
A PoE switch combines the functionality of a standard Ethernet switch  
with a single power supply that can power multiple devices. Using a PoE  
switch has the following advantages over an non-powered network.  
Reduced Cabling — a PoE (802.3af) compliant device that has its  
power supplied over its Ethernet cable does not require a separate  
power supply. If, for example, you use the switch to connect a 3Com  
11 Mbps Wireless LAN Access Point 8500 to the network, then only a  
network cable is required to provide both power and network  
connectivity.  
Increased Reliability — a device powered by a PoE switch can take  
advantage of the facilities available to the switch. You can fit the  
switch with a redundant power supply or uninterruptible power  
supply to increase its uptime.  
The switch supports resistor detection according to IEEE 802.3af and  
pre-standard detection methods.  
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42  
CHAPTER 2: INSTALLING THE SWITCH  
The Switch 5500 supports 3Com 802.3af equipment. For the latest list of  
supported devices, refer to the product page on the 3Com web site at  
http://www.3com.com/  
For additional information on Power over Ethernet, refer to the Power  
over Ethernet Configuration chapter in the Configuration Guide available  
on the 3Com Web site. Power over Ethernet management is available  
using the web interface or the command line interface (CLI).  
Installing and  
Removing the  
Power Module  
Installing the Power The Switch 5500G Family Power Module is swappable. To install the  
Module power module:  
1 Wear an ESD wrist strip, and make that sure it is well grounded.  
2 Verify that the Power Module is not installed upside-down (the module  
should be installed according to the letters. If the module is installed  
upside down, it will not be fully seated due the design of the chassis’  
internal structure).  
3 Use one hand to hold the handle on the front, and another to hold the  
bottom. Slide it gently along the power slot. Push the module until it is  
fully seated.  
4 Use a Phillips screwdriver to fasten the screws at both sides of the  
module.  
Removing the Power To remove the Power Module:  
Module  
1 Wear an ESD wrist strip, and make sure it is well grounded.  
2 Disconnect all power to the switch.  
3 Use a Phillips screwdriver to unscrew the screws on both sides of the  
module.  
4 Use one hand to hold the handle on the front, and another to hold the  
top. Pull out the module stably towards you along the power slot until it  
is completely apart from the chassis bottom.  
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Placing Units On Top of Each Other  
43  
CAUTION: When you use the Phillips screwdriver or power screwdriver to  
fasten captive screws on both sides of the module, make sure the captive  
force moment is not larger than 0.4 Nom.  
Placing Units On  
Top of Each Other  
If the switch units are free-standing, you can stack up to eight units. If  
you are mixing a variety of switches, make sure to place the smaller units  
at the top.  
If you are stacking switch units, apply the supplied self-adhesive rubber  
feet to the underside of each switch. Stick one in the marked area at each  
corner. Place the switch units on top of each other, ensuring that the feet  
of the upper unit sit fully on the lower unit.  
The Power-up  
Sequence  
The following sections describe how to prepare your Switch 5500 for  
operation.  
Powering-up the To power-up the switch:  
Switch 5500  
1 Plug the power cord into the power socket at the back of the switch.  
2 Plug the other end of the power cord into your power outlet.  
The switch powers-up and runs through its Power On Self Test (POST),  
which takes approximately one minute.  
Checking for Correct During the POST, all ports on the switch are disabled and the LEDs blink in  
Operation of LEDs a rapid sequence.  
When the POST has completed, check the Unit Status to make sure that  
your switch is operating correctly. Table 17 describes the possible LED  
colors.  
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44  
CHAPTER 2: INSTALLING THE SWITCH  
Table 17 Unit Status Colors  
Color  
State  
Green  
The switch is powered-up and operating normally.  
Green flashing The Power On Self Test (POST) is in process, or  
Red  
Off  
The switch has failed its Power On Self Test (POST).  
The switch is not receiving power.  
If you encounter a problem, see the section entitled “Solving Problems  
Indicated by LEDs” on page 82 for a list of suggested solutions.  
CAUTION: The switch has no ON/OFF switch; the only method of  
connecting or disconnecting mains power is by connecting or  
disconnecting the power cord.  
Choosing the Correct All of the ports on the switch are Auto-MDIX, that is, they have a  
Cables cross-over capability. These ports can automatically detect whether to  
operate in MDI or MDIX mode. Therefore, you can make a connection to  
one of the ports with a straight-through (MDI) or a cross-over (MDIX)  
cable.  
The Auto-MDIX feature only operates with auto-negotiation enabled.  
If auto-negotiation is disabled, all the switch ports are configured as  
MDIX (cross-over). If you want to make a connection to another MDIX  
port, you need a cross-over cable. Many ports on workstations and  
servers are configured as MDI (straight-through). If you want to make a  
connection to an MDI port, you need to use a standard straight-through  
cable. See Table 18.  
3Com recommends that you use at least Category 5 twisted pair cable.  
The maximum segment length for this type of cable is 100 m (328 ft.).  
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The Power-up Sequence  
45  
Table 18 Cables required to connect the switch to other devices with  
auto-negotiation disabled  
Cross-over Cable  
Straight-through Cable  
Switch-to-switch  
(MDIX to MDIX)  
Switch-to-hub  
(MDIX to MDIX)  
Switch-to-PC (NIC)  
(MDIX to MDI)  
CAUTION: If you want to install the switch using a Category 5E or  
Category 6 cable, 3Com recommends that you briefly connect the cable  
to a grounded port before connecting network equipment, otherwise the  
cable’s Electrostatic Discharge (ESD) may damage the switch's port.  
You can create a grounded port by connecting all wires at one end of a  
UTP cable to an earth ground point, and the other end to a female RJ-45  
connector located, for example, on a switch rack or patch panel. The  
RJ-45 connector is now a grounded port.  
WARNING: The Switch 5500G-EI supports Power over Ethernet on all  
front ports. The Switch 5500 PWR supports Power over Ethernet on the  
10/100 ports only. Use these ports for Ethernet wiring within the same  
building only.  
Choosing the Correct The 1000BASE-SX SFP transceiver supports a direct connection to a  
Cables for the multi-mode fiber-optic cable. The 1000BASE-LX SFP transceiver supports  
1000BASE-X SFP Ports a direct connection to single-mode and multi-mode fiber-optic cables.  
The 1000BASE-LH70 SFP transceiver supports a direct connection to a  
single-mode fiber-optic cable. The 1000BASE-T SFP transceiver uses  
Category 5 copper cabling with RJ-45 connectors and supports segment  
lengths of up to 100 m (328 ft). Table 14 describes the port cable range  
for each connection.  
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46  
CHAPTER 2: INSTALLING THE SWITCH  
Table 19 1000BASE-X SFP Port Cable Range  
Fiber Type  
Diameter  
(microns) Bandwidth  
(MHz . km)  
Modal  
Transmission Range in meters  
(in feet)  
1000BASE-SX  
Multi-mode  
Multi-mode  
Multi-mode  
Multi-mode  
1000BASE-LX  
Multi-mode  
Multi-mode  
Multi-mode  
Single-mode  
1000BASE-LH70  
Single-mode  
62.5  
62.5  
50  
160  
200  
400  
500  
2m - 220m (6.6 ft - 721.8 ft)  
2m - 275m (6.6 ft - 902.3 ft)  
2m - 500m (6.6 ft - 1640.5 ft)  
2m - 550m (6.6 ft - 1804.6 ft)  
50  
62.5  
50  
50  
9
500  
400  
500  
-
2m - 550m (6.6 ft - 1804.6 ft)  
2m - 550m (6.6 ft - 1804.6 ft)  
2m - 550m (6.6 ft - 1804.6 ft)  
2m - 10,000m (6.6 ft - 32, 810 ft)  
9 core  
-
2m - 70 km (6.6 ft - 43 miles)  
Choosing the Correct The 100BASE-LX10 SFP transceiver supports a direct connection to a  
Cables for the single-mode fiber-optic cable. The 100BASE-FX SFP transceiver supports a  
100BASE-X SFP Ports direct connection to multi-mode fiber-optic cable. Table 20 describes the  
port cable range for each connection:  
Table 20 100BASE-X SFP Port Cable Range  
Fiber Type  
Diameter  
(microns) Bandwidth  
(MHz . km)  
Modal  
Transmission Range in meters  
(in feet)  
100BASE-FX 2Km  
Multi-mode  
62.5  
50  
160  
400  
2m - 2000m (6.5 ft - 6,562 ft)  
2m - 2000m (6.5 ft - 6,562 ft)  
Multi-mode  
100BASE-LX10 10Km  
Single-mode  
9
-
2m - 10,000m (6.5 ft - 32, 808 ft)  
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SFP Operation  
47  
SFP Operation  
The following sections describes how to select and use an SFP transceiver  
in an SFP port.  
Approved The approved Gigabit Ethernet SFP transceivers include:  
1000BASE-X SFP  
Transceivers  
3CSFP91 SFP (1000BASE-SX)  
3CSFP92 SFP (1000BASE-LX)  
3CSFP93 SFP (1000BASE-T)  
3CSFP97 SFP (1000BASE-LH70)  
3Com may approve additional SFP transceivers following the publication  
of this document. The latest list of approved SFP transceivers for the  
Switch 5500 Family is available on the 3Com Web site, at:  
http://www.3com.com  
You must match SFP transceivers with the correct cable type as follows:  
1000BASE-SX SFP transceiver  
Use this transceiver to connect Gigabit Ethernet SFP ports on the  
switch directly to a multimode fiber-optic cable.  
1000BASE-LX SFP transceiver  
Use this transceiver to connect Gigabit Ethernet SFP ports on the  
switch directly to a single-mode fiber-optic cable or to a multimode  
fiber using a conditional launch cable.  
1000BASE-LH70 SFP transceiver  
Use this transceiver to connect Gigabit Ethernet SFP ports on the  
switch directly to a single-mode fiber-optic cable.  
This transceiver uses Category 5 copper cabling with RJ-45 connectors  
and supports segment lengths of up to 100 m (328 ft).  
If the SFP transceiver is faulty, it will not operate within the switch. See  
“Solving Hardware Problems” on page 83.  
3Com recommends that you only use Gigabit Ethernet SFPs supplied by  
3Com. If the SFP transceiver is invalid it will not be recognized by the  
switch.  
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48  
CHAPTER 2: INSTALLING THE SWITCH  
Approved 100BASE-X The following list of approved 100Mbps SFP transceivers is correct at the  
SFP Transceivers time of publication.  
3CSFP81 100BASE-FX  
3CSFP82 100BASE-LX10  
3CSFP85 100BASE-BX10-D  
3CSFP86 100BASE-BX10-U  
SFP transceivers must be matched with the correct cable type as follows:  
100BASE-FX  
Use this transceiver to connect 100Mbps SFP ports on the switch  
directly to a multi-mode fiber-optic cable.  
100BASE-LX10  
Use this transceiver to connect 100Mbps SFP ports on the switch  
directly to a a single-mode fiber-optic cable.  
100BASE-BX10-D  
Use this transceiver to connect 100Mbps SFP ports on the switch  
directly to a single strand of a single-mode fiber-optic cable on the  
opposite end of a link that is connected to a 100BASE-BX10-U  
transceiver.  
100BASE-BX10-U  
directly to a single strand of a single-mode fiber-optic cable on the  
opposite end of a link that is connected to a 100BASE-BX10-D  
transceiver.  
If the SFP transceiver is faulty, it will not operate within the switch. See  
“Solving Hardware Problems” on page 83.  
3Com recommends that you only use Gigabit Ethernet and Fast Ethernet  
SFPs supplied by 3Com. If the SFP transceiver is invalid it will not be  
recognized by the switch.  
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SFP Operation  
49  
Inserting an SFP To activate the SFP ports:  
Transceiver  
SFP transceivers are hot-insertable and hot-swappable. You can remove  
them from and insert them into an appropriate SFP port without having  
to power down the switch.  
1 The SFP transceiver (shown in Figure 18) is keyed so that there is only one  
way that you can install it correctly. Hold the transceiver so that the  
connector is toward you and the product label is visible. Ensure that the  
wire release lever is closed (in the upright position).  
2 Gently slide the transceiver into the SFP port until it clicks. If the  
transceiver does not click into place, remove it, turn it over and re-insert  
it.  
3 Remove the plastic protective cover, if fitted.  
CAUTION: The dual personality ports on the Switch 5500G-EI enable you  
to activate an RJ-45 port, an SFP port, or a mixture of both (for example,  
on the 24 Port switch, you can activate the RJ-45 ports 23 and 24 and the  
SFP ports 21 and 22 at the same time). If you try to activate the same dual  
personality RJ-45 port and SFP port (for example, RJ-45 port 23 and SFP  
port 23 at the same time), the SFP port takes priority.  
Figure 18 Inserting an SFP Transceiver  
Product  
label  
Suitable port  
on host Switch  
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50  
CHAPTER 2: INSTALLING THE SWITCH  
4 Check the LEDs on the front of the switch to ensure that it is operating  
correctly. Refer to the section entitled “LEDs” on page 18 for more  
information.  
Removing an SFP To remove the transceiver (it is not necessary to power-down your  
Transceiver switch):  
1 Disconnect the cable from the transceiver.  
2 Move the wire release lever downwards until it is pointing toward you.  
3 Pull the wire release lever toward you to release the catch mechanism;  
the transceiver will then easily slide out.  
Installing and  
Removing the  
Optional Interface  
Module  
The Optional Interface Module is hot-swappable. To install the Optional  
Interface Module:  
1 Wear an ESD wrist strip that is well grounded and remove the module  
from the package.  
2 Using a Phillips screwdriver, remove the blank filler panel from the slot  
where you plan to install the module.  
3 Hold the modules front panel with both hands, align the module with  
the guides in the slot, and slide it gently into the slot. Push the module  
until it is fully in position.  
4 Fasten the captive screws to fix the module using the Phillips screwdriver.  
Note: Keep the removed blank panel for future use. When you use the  
Phillips screwdriver or power screwdriver to fasten captive screws on both  
sides of the module, make sure the captive force momentum is not larger  
than 0.4 Nom.  
To remove the module,:  
1 Wear an ESD wrist strip that is well grounded.  
2 Use a Phillips screwdriver to unscrew the captive screws at both sides of  
the module.  
3 Pull the module towards you until it is completely apart from the chassis  
bottom.  
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Packing and Shipping the Switch 5500  
51  
CAUTION: When installing and removing an Optional Interface Module,  
note that:  
Do not exert excessive force on the module or touch the components  
on the module surface.  
If you are not installing a new module, insert a blank filler panel to  
keep the dust out and to ensure normal ventilation within the switch.  
Packing and  
This section describes how to correctly package your Switch 5500 should  
Shipping the Switch you need to return the switch to 3Com.  
5500  
WARNING: If you are returning the unit to 3Com for repair, ensure that  
you fit the rear blanking plates for the PSU and module. If 3Com receives  
the unit without the blanking plates in place your warranty could be  
invalidated.  
WARNING: Package the unit correctly to ensure that you do not  
invalidate the repair.  
The Switch 5500G To package your Switch 5500G unit correctly:  
1 For the 5500G unit, orientate your switch so that the PSU blanking plate  
is on the left (looking down at the top of the unit) as shown in Figure 19.  
2 Secure one of the polystyrene supports to side of the unit with the PSU  
blanking plate, ensuring that the wider recess on the support is fitted  
around the blanking plate. Secure the remaining support to the opposite  
side of the unit in the same way.  
3 Place the unit in the box with the PSU blanking plate side placed next to  
the cable packaging.  
Figure 19 Correct Orientation When Packing the Switch 5500G-EI  
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52  
CHAPTER 2: INSTALLING THE SWITCH  
Polystyrene Supports  
PSU Blanking Plate  
Cable Packaging  
PSU  
SIDE  
PORT  
SIDE  
Switch Unit  
The Switch 5500SI To package your Switch 5500 unit correctly, orient the switch so that the  
and EI front of the unit faces the front of the box, rather than the right of the  
box as shown in Figure 20.  
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Packing and Shipping the Switch 5500  
53  
Figure 20 Correct Orientation When Packing the Switch 5500SI and 5500EI  
The Switch 5500-EI The 5500-EI PWRs should be orientated like the 5500G-EI (see Figure 19)  
and not facing forward.  
PWRs  
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54  
CHAPTER 2: INSTALLING THE SWITCH  
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SETTING UP FOR MANAGEMENT  
3
To make full use of the features offered by your switch, and to change  
and monitor the way it works, you use management software that  
resides on the switch. Managing the switch can help you to improve its  
This chapter explains the initial setup and the methods by which you can  
Setting Up Web Interface Management  
Setting Up SNMP Management  
Changing the Default Passwords  
Downloading the Configuration Conversion Utility  
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56  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
Methods of  
Managing a Switch  
You can manage your switch using one of the following methods:  
Command line interface management  
Command line interface management using SSH  
Web interface management  
SNMP management  
Command Line Each switch has a command line interface (CLI) that allows you to  
Interface manage the switch from a workstation, either locally using a console port  
Management connection (see Figure 21), or remotely over the network (see Figure 22).  
Figure 21 CLI Management via the Console Port  
Workstation  
(with terminal emulation  
software installed)  
Switch  
Console Port  
Connection  
Console Cable  
Figure 22 CLI Management over the Network  
Switch  
Workstation  
via Telnet  
For a description on how you can set up command line interface  
management using a local console port connection or over the network,  
refer to “Setting Up Command Line Interface Management” on page 69.  
There are two main views in the CLI:  
User View — this view displays when you first connect to the switch  
and provides basic information about its operation and statistics. The  
prompt for user view is <SW5500-XX>(where xx is either SI or EI).  
System View — this view enables you to configure the system  
parameters. To display this view, from user view enter system-view.  
The prompt for system view is [SW5500-XX].  
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Methods of Managing a Switch  
57  
Command Line The Switch 5500 supports Secure Shell version 2.0 (SSHv2), allowing  
Interface secure access to the Command Line Interface of the switch.  
Management using  
If you use SSH to administer your switch, and the network traffic is  
SSH  
intercepted, no passwords or configuration information are visible in the  
data. To securely administer the switch using the Command Line Interface  
you need a third party SSH client.  
Web Interface Each switch has an internal set of Web pages that allow you to manage  
Management the switch using a Web browser remotely, over an IP network (see  
Figure 23).  
Figure 23 Web Interface Management over the Network  
Switch  
Workstation  
Connect over Network  
via web browser  
For more information about how to set up web interface management  
over the network, refer to “Setting Up Web Interface Management” on  
page 71.  
SNMP Management You can manage a switch using any network management workstation  
running the Simple Network Management Protocol (SNMP) as shown in  
Figure 24. For a description of 3Com Network Management applications,  
please refer to Appendix E.  
Figure 24 SNMP Management over the Network  
SNMP Network Management  
Switch  
Workstation  
Connect over Network  
using SNMP  
For more information about managing your switch using a network  
management application, refer to “Setting Up SNMP Management” on  
page 72.  
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58  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
Setting Up Your  
Switch  
This section provides an overview how to set up your switch and manage  
that switch when it is in its default state. Figure 25 summarizes the setup  
process. Detailed steps are provided in the sections that follow. In brief,  
you need to:  
Manually configure the IP information for your switch or view the  
automatically configured IP information.  
Prepare for your chosen method of management  
Figure 25 Initial Switch Setup and Management Process  
Power Up the Switch.  
IP Information is automatically configured via  
DHCP  
See page 59  
Do you want to manually  
configure the IP information?  
No  
Yes  
How do you want to view the automatically  
configured IP information?  
How do you want to connect to the Switch?  
Connect to the con-  
Connect to a front panel port  
and use the Web Interface or  
Command Line  
Use 3Com Network  
Director (3ND).  
See page 67  
Connect to the console  
port and use the  
Command Line  
Interface.  
sole port and use the  
Command Line Inter-  
face.  
Interface.  
See page 61  
See page 61  
See page 67  
How do you want to manage your Switch? See page 56  
SNMP  
See page 72  
Command Line Interface  
Web Interface  
Connect using the  
console port.  
See page 69  
Connect over the  
network using Telnet.  
See page 69  
Connect over the  
network.  
See page 72  
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Setting Up Your Switch  
59  
CAUTION: To protect your switch from unauthorized access, you must  
change all three default passwords as soon as possible, even if you do not  
intend to actively manage your switch. For more information on the  
default user names and changing the default passwords, see “Changing  
the Default Passwords” on page 73.  
IP Configuration You can use one of the following methods to provide IP information to  
your switch. This step is essential if you wish to manage your switch over  
the network.  
Manual IP Configuration  
When you configure the IP information, the switch retains that  
information that you enter until you change it again.  
You should use the Manual IP configuration method if:  
you do not have a DHCP or BootP server on your network  
you want to remove the risk of the IP address ever changing  
your DHCP or BootP server does not allow you to allocate static IP  
addresses. Static IP addresses are necessary to ensure that the switch is  
always allocated the same IP information.  
the switch’s IP information. This makes management simpler and more  
reliable since it does not depend on a DHCP or BootP server. It also  
eliminates the risk of the IP address changing.  
To manually enter the switchs IP information, refer to the section entitled  
“Manually Configuring the IP Information” section on page 61.  
Automatic IP Configuration using DHCP  
By default, the switch automatically attempts to acquire its IP address  
from a DHCP server on the network. If you are using this method, make  
sure your DHCP server assigns the switch a static IP address so that you  
know what that IP address will be at all times.  
If you do not know what the IP address is and it will be difficult to  
manage your switch. Most DHCP servers allow static IP address  
configurations. Refer to your DHCP server documentation for  
instructions.  
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60  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
For a detailed description of how automatic IP configuration operates,  
refer to the “Switch 5500 Family Configuration Guide” available on  
3Com’s Web Site at www.3com.com.  
You should use the automatic IP configuration method if:  
your network uses DHCP to allocate IP information  
the switch is deployed on a different subnet. In this case, the switch  
will automatically reconfigure itself with an appropriate IP address,  
rather than you having to manually reconfigure the switch.  
configuration will be blank or shown as ‘’’’.  
If you use the automatic IP configuration method, you need to discover  
the automatically allocated IP information before you can begin  
management. Refer to the section entitled “Viewing Automatically  
Configured IP Information” section on page 67.  
Preparing for Once your switchs initial set up is complete you can set up your chosen  
Management management method as described in “Methods of Managing a Switch”  
on page 56.  
For detailed information about the specific Web interface operations,  
command line interface commands, and problem solving, refer to the  
“Switch 5500 Family Command Reference Guide” available on 3Com  
Web Site at www.3com.com.  
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Manually Configuring the IP Information  
61  
Manually  
You can manually configure the switchs IP information by:  
Configuring the IP  
Information  
Connecting a workstation using a console cable to the switchs  
console port. You can then manually enter IP information using the  
command line interface (CLI).  
Connecting a workstation using an Ethernet cable to a front panel  
port of the switch. You can then manually enter IP information using  
the web interface or the command line interface (CLI).  
Connecting to the To set up your switch manually, you can connect to the console port, (this  
Console Port example describes a local connection to the console port, rather than one  
using a modem). You can do this while the switch is offline (before you  
connect the switch to a network) or while the switch is online (connected  
to a network).  
Prerequisites  
Before configuring your switch, make sure that you have:  
A workstation with terminal emulation software installed, such as  
Microsoft Hyperterminal. This software allows you to communicate  
with the switch using the console port directly.  
Documentation supplied with the terminal emulation software.  
The console cable (RJ-45) supplied with your switch.  
The cable’s pin-out diagrams are provided in Appendix B on page 123.  
An IP address  
A subnet mask  
A default gateway  
A management VLAN ID, normally set to the default value (1)  
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62  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
Connecting the Workstation to the Switch  
1 Connect the workstation to the console port using the console cable as  
shown in Figure 26.  
Figure 26 Connecting a Workstation to the Switch via the Console Port  
Workstation  
(with terminal emulation  
software installed)  
Switch  
Console Port  
Connection  
Console Cable  
To connect the cable:  
a Attach the RJ-45 connector on the cable to the switchs console port.  
b Attach the other end of the cable to the workstation and tighten the  
retaining screws on the cable to prevent it from loosening.  
2 Open your terminal emulation software and configure the COM port  
settings to which you have connected the cable. Make sure that the  
settings match the switchs default settings, which are:  
19,200 baud (bits per second)  
8 data bits  
no parity  
1 stop bit  
no hardware flow control  
Refer to the terminal emulation softwares documentation for more  
information about these settings.  
3 Power up the switch. The switch performs its Power on Self Test (POST).  
Setting Up the Switch with IP Information  
To manually set up the switch with IP information using the command  
line interface, perform the following steps.  
1 The command line interface login sequence begins as soon as the switch  
detects a connection to its console port. If the login prompt does not  
begin immediately, press Return a few times until it starts.  
2 At the Username prompt, enter adminas your user name and press  
Return. At the password prompt press Return again. Either <500G-EI>  
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Manually Configuring the IP Information  
63  
or <5500-xx>displays (where xxis either SI or EI) as shown in  
Figure 27.  
Once you have logged into the switch, you are automatically in User  
View.  
Figure 27 User View Login  
3 Enter the system-viewcommand and press Enter. The [5500-xx]  
prompt displays (where xxis either SI or EI)  
4 Enter interface vlan 1and press Enter.  
5 Enter the IP address and subnet mask for the switch as follows:  
ip address xxx.xxx.xxx.xxx mmm.mmm.mmm.mmm  
and press Enter.  
(where xxx.xxx.xxx.xxx is the IP address and mmm.mmm.mmm.mmm is  
the switch’s subnet mask)  
6 Enter the quitcommand to exit System View (and return to User View)  
and then enter the switchs default gateway using the following  
command:  
ip route-static 0.0.0.0 0.0.0.0 xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the default gateways IP address)  
7 From User View, enter the savecommand to save the configuration to  
your switch (the configuration is not saved automatically when the switch  
is powered down).  
You can now set up your switch management method. See “Methods of  
Managing a Switch” on page 56 to determine which method is best for  
you. If you do not intend to use the command line interface through the  
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64  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
and close the terminal emulator software.  
Connecting to a Front To set up your switch manually you can, alternatively, make a connection  
Panel Port to a front panel port. To do this you need an IP address. Refer to  
“Viewing Automatically Configured IP Information” on page 67 for more  
information.  
The procedure described in this section assumes the unit is powered up in  
Prerequisites  
Before configuring your switch, make sure that you have:  
A workstation running a suitable operating system. Refer to  
“Choosing a Browser” on page 71.  
A Network Interface Card (NIC).  
A Category 5 twisted pair Ethernet cable with RJ-45 connectors at  
both ends.  
A suitable Web browser. Refer to “Choosing a Browser”on page 71.  
The switchs IP address.  
An IP address  
A subnet mask  
A default gateway  
A management VLAN ID, normally set to the default value (1)  
Connecting the Workstation to the Switch  
1 Connect the workstation to a front panel port using an Ethernet cable as  
shown in Figure 28.  
Figure 28 Connecting a Workstation to the Switch through a Front Panel Port  
Switch  
Workstation  
(with a Network  
Interface Card  
installed)  
Front Panel  
Port Connection  
Ethernet Cable  
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Manually Configuring the IP Information  
65  
To connect the cable:  
a Attach an RJ-45 connector at one end of the Ethernet cable to the  
Network Interface Card (NIC) in the workstation.  
b Connect the RJ-45 connector at the other end of the cable to one of  
the front panel ports on the switch.  
Do not interconnect the switch to any other unconfigured switch.  
Setting Up the Switch with IP Information  
You can set up the switch with IP information using the Web interface or  
the command line interface (CLI) using telnet.  
Using the Web Interface  
1 Power-up the switch. This takes approximately one minute.  
2 Open a suitable Web browser and enter your switchs IP address in the  
Address field.  
If there is no response, wait for one minute then re-enter the IP address.  
If your browser displays an option to install simplified Chinese characters,  
click Cancel to continue (do not install these characters).  
3 At the Username prompt, enter adminas your user name and press  
Return. At the password prompt press Return again. The switchs Device  
View displays.  
4 To enter basic setup information for the switch, select Administration > IP  
Setup and follow the wizard screens to enter the IP address and subnet  
mask that you want the switch to use when it is connected to the  
network. The final page displays a summary of the information entered.  
5 Select Save Configuration to save the configuration to your switch.  
You can now set up your switch management method. See “Methods of  
Managing a Switch” on page 56 to determine which method is best for  
you.  
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CHAPTER 3: SETTING UP FOR MANAGEMENT  
Using the Command Line Interface through Telnet  
1 To start a Telnet session to the unit, from Microsoft Windows, click Start >  
Run. In the Open field type Telnet xxx.xxx.xxx.xxx (where  
xxx.xxx.xxx.xxx is the switchs IP address) and click OK.  
2 Press Enter to open a login prompt.  
If the login prompt does not begin immediately, press Return a few times  
until it starts.  
3 At the Username prompt, enter adminas your user name and press  
Return. At the password prompt press Return again. If you have logged  
on correctly, <5500G-EI> or <5500-xx>is displayed (where xxis either  
SI or EI) as shown in the example in Figure 29.  
Figure 29 User View Login using Telnet  
4 Enter the system-viewcommand and press Enter.  
5 Enter interface vlan 1and press Enter.  
6 Enter the IP address and subnet mask for the switch as follows:  
ip address xxx.xxx.xxx.xxx mmm.mmm.mmm.mmm  
(where xxx.xxx.xxx.xxx is the IP address and mmm.mmm.mmm.mmm is  
the subnet mask of the switch)  
7 Enter the default gateway for the switch:  
ip route-static 0.0.0.0 0.0.0.0 xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the IP address of the default gateway)  
8 From the User View, enter the savecommand to save the configuration  
to your switch because the configuration is not saved automatically when  
you power down the switch.  
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Viewing Automatically Configured IP Information  
67  
You can now set up your switch management method. See “Methods of  
Managing a Switch” on page 56 to determine which method is best for  
you.  
Viewing  
If you allow the switch to automatically configure its own IP information,  
you need to discover and view the IP information before you can begin to  
manage the switch. You can discover the IP information in two ways:  
Automatically  
Configured IP  
Information  
Using 3Com Network Director to auto-discover the switch and display  
the automatically allocated IP information assigned to the switch.  
Connect a workstation using a console cable to the switchs console  
port. You can then view the IP information automatically assigned to  
the switch using the command line interface (CLI).  
Using 3Com Network To use the 3Com Network Director application (available from the 3Com  
Director Web site) to discover the automatically allocated IP information:  
1 Connect your switch to the network.  
2 Power-up the switch and wait for two minutes.  
3 Launch 3Com Network Director and run the Auto-discovery wizard.  
3Com Network Director automatically discovers the new switch and  
displays the IP information allocated to the switch.  
Most DHCP and BootP servers allow you to configure static IP addresses  
so that you know what IP address is given to the switch. Refer to the  
documentation that accompanies your DHCP or BootP server for  
instructions.  
If your network does not have a DHCP or BootP server, the workstation  
running 3Com Network Director must be on the same subnet as the  
switch because Auto-IP addresses are non-routable.  
Connecting to the You can view the automatically configured IP information using the  
Console Port command line interface (CLI) through a connection to the console port.  
This example describes a local connection to the console port rather than  
a remote connection using a modem. For further information on  
connecting to the console port see “Connecting the Workstation to the  
Switch”on page 62.  
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CHAPTER 3: SETTING UP FOR MANAGEMENT  
Viewing IP Information via the Console Port  
To view the automatically-allocated IP information using the command  
line interface:  
1 Connect your switch to the network using the Ethernet cable. As soon as  
a network connection is made the switch begins the automatic IP  
configuration process.  
The automatic IP configuration process usually completes within one  
minute.  
2 The command line interface login sequence begins as soon as the switch  
detects a connection to its console port.  
If the login prompt does not begin immediately, press Return a few times  
until it starts.  
3 At the username prompt, type adminand press Return. Press Return  
again at the password prompt. If you have logged on correctly,  
<500G-EI> or <5500-xx>is displayed (where xxis either SI or EI) as  
shown in the example in Figure 30.  
Figure 30 User View Login  
4 Enter display ip interface brto view a summary of allocated IP  
addresses.  
You can now set up your switch management method. See “Methods of  
Managing a Switch” on page 56 to determine which method is best for  
you.  
If you do not intend to use the command line interface through the  
console port to manage the switch, you can logout, disconnect the serial  
cable, and close the terminal emulator software.  
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Setting Up Command Line Interface Management  
69  
Setting Up  
This section describes how to set up command line interface  
management using a local console port connection or over the network.  
Command Line  
Interface  
Management  
User Interface The switch provides a user interface so that you can configure and  
Overview manage the port data. There are two types of user interfaces, AUX and  
VTY:  
Use the AUX user interface to log into your switch through the  
console port. A fabric can have up to eight AUX user interfaces.  
Use the VTY user interface to Telnet to the switch. The switch can  
CLI Management To manage a switch using the command line interface through the local  
through the Console console port connection, ensure that you have connected your  
Port workstation to the console port as described in “Connecting to the  
Console Port” on page 61.  
You can now continue to manage and configure your switch using the  
CLI Management over To manage a switch using the command line interface over a network  
the Network using Telnet:  
1 Ensure that you have already set up the switch with IP information as  
described in “Methods of Managing a Switch” on page 56.  
2 Check that the IP protocol is correctly installed on your management  
workstation. You can check this by trying to browse the World Wide  
Web. If you can browse, the IP is installed correctly.  
3 Check that you can communicate with the switch by entering a ping  
command at the DOS prompt in the following format:  
c:\ ping xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the switchs IP address)  
If you get an error message, check that your IP information has been  
entered correctly and that the switch is powered up.  
4 To open a Telnet session, from the DOS prompt, enter the IP address of  
the switch that you wish to manage in the following format:  
>telnet xxx.xxx.xxx.xxx  
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CHAPTER 3: SETTING UP FOR MANAGEMENT  
(where xxx.xxx.xxx.xxx is the IP address of the switch)  
If you are opening a Telnet session using third party software, you must  
enter the IP address in the format suitable for that software.  
5 At the Username prompt, enter adminas your user name and press  
Return. At the password prompt press Return again. (or enter the  
password if you have modified the default passwords).  
If the login prompt does not display immediately, press Return a few  
times until it starts.  
6 If you have logged on correctly, the switch prompt display as  
<5500G-EI>or <5500-xx>(where xxis either SI or EI, as shown in  
Figure 27 on page 63).  
Setting Up  
Interface  
Management using  
SSH  
This section describes to can set up command line Interface management  
To manage a switch through the command line interface over a network  
using SSH:  
1 Ensure that you have set up the switch with IP information as described in  
“Methods of Managing a Switch” on page 56.  
2 Check that you have the IP protocol correctly installed on your  
management workstation. You can check this by trying to browse the  
World Wide Web. If you can browse, the IP is installed correctly.  
3 Check that you can communicate with the switch by entering a ping  
command at the DOS prompt in the following format:  
c:\ ping xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the IP address of the switch)  
If you get an error message, check that your IP information has been  
entered correctly and that the switch is powered up.  
The switch automatically generates a host key pair when it is powered up  
for the first time, or after any reset to factory defaults. Host key  
generation may take a while, during which time SSH connections to the  
switch will be refused.  
4 Install an SSH client application on the workstation from which you want  
to use to access the switch.  
3Com recommends the PuTTY, OpenSSH, and SSH Communications  
Security Corp Secure Shell SSH clients.  
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Setting Up Web Interface Management  
71  
5 Open an SSH session and access the switch using the switchs IP address  
and port number.  
The first time you connect to the switch, the client asks you to confirm  
that the host key is correct for the device.  
6 The switch and the SSH client authenticate each other and a secure  
connection is established. Enter your username and password to access  
the CLI commands.  
For increased security, you should change the default password when  
using SSH for the first time.  
For further information on generating a host key on your switch and  
transferring keys to the switch using TFTP server, refer to the  
Configuration Guide.  
Setting Up Web  
Interface  
Management  
This section describes how to set up Web interface management over the  
network.  
Prerequisites Before setting up Web interface management, make sure that:  
You have already set up the switch with IP information as described in  
“Methods of Managing a Switch” on page 56.  
The switch is connected to the network using a Category 5 twisted  
pair Ethernet cable with RJ-45 connectors.  
You have a suitable Web browser (see Table 21).  
Choosing a Browser  
To display the Web interface correctly, use one of the following Web  
browser and platform combinations:  
Table 21 Supported Web Browsers and Platforms  
Windows  
2000  
Windows  
Windows XP Server 2003  
Red Hat  
Linux 9  
Solaris  
7/9  
Netscape 7.1  
Internet Explorer 5.5  
Internet Explorer 6.0  
Mozilla 1.4  
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CHAPTER 3: SETTING UP FOR MANAGEMENT  
For the browser to operate the Web interface correctly, make sure that  
JavaScript™ and Cascading Style Sheets are enabled on your browser.  
These features are enabled on a browser by default. You will only need to  
enable them if you have changed your browser settings.  
Web Management To manage a switch using the Web interface over an IP network:  
Over the Network  
1 Check that you have the correct IP information configured on your  
management workstation. You can check this by trying to browse the  
World Wide Web. If you can browse, the IP is installed.  
2 Check that you can communicate with the switch by entering a ping  
command at the DOS prompt in the following format:  
c:\ ping xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the IP address of the switch)  
If you get an error message, check that your IP information has been  
entered correctly and that the switch is powered up.  
3 Open your Web browser and enter the switchs IP address in the URL  
locator, for example, in the following format:  
http://xxx.xxx.xxx.xxx  
4 At the Username prompt, enter adminas your user name and press  
Return. At the password prompt press Return again. (or enter the  
password if you have modified the default passwords).  
5 Click on the Device View button to display the web management options.  
Setting Up SNMP  
Management  
Any network management application running the Simple Network  
Management Protocol (SNMP) can manage a switch if the management  
workstation is connected to the switch using a port on the management  
VLAN. By default, the management VLAN is 1, and all ports on the  
switch are in VLAN 1  
You can use the 3Com Network Director, Device manager, EMC and the  
OV integration kit (available from 3Com’s Web site) to provide SNMP  
management for your switch. 3Com Network Director, Device manager,  
EMS, and OV integration kit automatically loads the correct MIBs and  
necessary files onto your workstation.  
Prerequisites The default read community string is public. To change this setting, in  
System View, enter display snmp community.  
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Changing the Default Passwords  
73  
The default write community string is private. To change this setting,  
in System View, enter display snmp community.  
To manage your switch using an SNMP network management  
application, you need to specify the same SNMP community strings for  
the users defined on the switch and the management application.  
You can do this using the command line interface system  
management snmp communitycommand. Refer to the command  
line interface section of the “Switch 5500 Family Command Reference  
Guide” for more information.  
SNMP V3 is on as default. All commands are in the SNMP menu in System  
View.  
Changing the  
Default Passwords  
If you intend to manage the switch using the Web interface or the  
command line interface, or to change the default passwords, you need to  
log in with a valid user name and password. The switch has three default  
user names, and each user name has a different password and access  
level. These default users are listed in Table 22.  
CAUTION: To protect your switch from unauthorized access, you should  
change all three default passwords as soon as possible, even if you do not  
intend to actively manage your switch.  
Table 22 Default Users  
User  
Name  
Default  
Password Access Level  
monitor  
monitor  
This user can view all manageable parameters, except  
special/security features, but cannot change any  
manageable parameters  
manager manager  
admin (no  
This user can access and change the operational  
parameters, but not special/security features  
This user can access and change all manageable  
password) parameters  
Use the admin default user name (no password) to login and perform  
the initial switch setup.  
To set a password for the admin user in the CLI, enter the following from  
System View:  
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CHAPTER 3: SETTING UP FOR MANAGEMENT  
[5500-xx]local-user admin <cr>  
[5500-xx-luser-admin]password simple xxxxxxxx  
(where xxxxxxxxis your chosen password).  
Save the configuration in the User View.  
For information on the lost password procedure refer to the  
Configuration Guide.  
Downloading the  
Configuration  
Conversion Utility  
The 3Com Switch 5500 Configuration Conversion Utility (CCU) enables  
you to convert the key configuration parameters from a range of 3Com  
devices to the configuration file format used by your Switch 5500. The  
utility provides conversion for several switch features  
You can download the CCU package from 3Coms Web site at:  
http://www.3com.com/switchmigration/  
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CREATING AN XRN STACKING  
FABRIC  
4
This chapter contains the information you need to create an XRN  
Stacking Fabric. It covers the following topics:  
How To Interconnect Units  
Guidelines For Interconnecting Units  
Unit Numbering within the Fabric  
How To  
Interconnect Units  
Up to eight 3Com Switch 5500 units can be interconnected to create an  
XRN Stacking Fabric and then treated as a single manageable unit with  
one IP address.  
You can interconnect your switches to create an XRN Fabric using a  
standard 1000 Mbps Ethernet connection. Table 23 lists the different  
variants of the Switch 5500 family, how they physically interconnect and  
the level of XRN support offered by the Fabric.  
It is not possible to create a Fabric by interconnecting a 3Com Switch  
5500 with any other 3Com device (such as a 5500G-EI) or mix Enhanced  
Image (EI) Switch 5500 units with Standard Image (SI) units.  
This section assumes you have either set up your units for management  
as detailed in Chapter 3 “Setting Up SNMP Management”or that you are  
using a console cable connected to the console port to set up and  
allocate IP addresses and so on.  
For more information on creating an XRN Fabric, refer to the Installation  
Guides that accompany the stacking cable (3C17262) and the resilient  
stacking cable (3C17263).  
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CHAPTER 4: CREATING AN XRN STACKING FABRIC  
Table 23 SuperStack 4 Switch 5500 Support for XRN Distributed Fabric  
Switch  
Port used  
XRN support  
Switch 5500-SI 28-Port  
(3CR17151-91)  
Ports 27 (up port) and 28 (down Supports DDM and  
port) using a 1000 Mbps SFP  
transceiver  
DLA*  
Switch 5500-SI 52-Port  
(3CR17152-91)  
Ports 51 (up port) and 52 (down Supports DDM and  
port) using a 1000 Mbps SFP  
transceiver  
DLA*  
Switch 5500-EI 28-Port  
(3CR17161-91)  
Ports 27 (up port) and 28 (down Full XRN functionality  
port) using a 1000 Mbps SFP  
transceiver  
Switch 5500-EI 52-Port  
(3CR17162-91)  
Ports 51 (up port) and 52 (down Full XRN functionality  
port) using a 1000 Mbps SFP  
transceiver  
Switch 5500-EI PWR  
28-Port (3CR17171-91)  
Ports 27 (up port) and 28 (down Full XRN functionality  
port) using a 1000 Mbps SFP  
transceiver  
Switch 5500-EI PWR  
52-Port (3CR17172-91)  
Ports 51 (up port) and 52 (down Full XRN functionality  
port) using a 1000 Mbps SFP  
transceiver  
Switch 5500-EI FX 28-Port Ports 27 (up port) and 28 (down Full XRN functionality  
(3CR17181-91)  
port) via 10/100/1000BASE-T  
ports  
Switch 5500G-EI 24-Port Two dedicated stacking cable  
Full XRN functionality  
Full XRN functionality  
Full XRN functionality  
(3CR17254-91)  
ports (one ‘up’ and one ‘down’)  
on the rear of the unit.  
Switch 5500G-EI 48-Port Two dedicated stacking cable  
(3CR17255-91)  
ports (one ‘up’ and one ‘down’)  
on the rear of the unit.  
Switch 5500G-EI SFP  
24-Port (3CR17259-91)  
Two dedicated stacking cable  
ports (one ‘up’ and one ‘down’)  
on the rear of the unit.  
* Distributed Device Management and Distributed Link Aggregation  
Stacking Switch 5500 Units  
1 Ensure that the switch units that you wish to interconnect have the latest  
software agent installed. You can use the display version  
command to check this.  
2 Enable the ‘up port’ and the ‘down port’ on each switch (see Table 23) to  
operate in Fabric mode using the following CLI command. From the  
System View enter fabric-port gigabitethernet 1/0/51  
enable, for example.  
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How To Interconnect Units  
77  
As with all Switch 5500 CLI commands, the format for entering a  
command that is port specific is x/y/z, where x = unit number, y = module  
number (in the case of the Switch 5500 this will always be 0), z = port  
number.  
3 Connect the Fabric-enabled ‘up’ port on one Switch 5500 unit to the  
Fabric-enabled ‘down’ port on another Switch 5500 unit using the  
appropriate connection method for your switch as detailed in Table 23.  
4 To create a fully resilient Fabric: enable the spare Fabric ports on the  
top-most and bottom-most units in the Fabric as described in the  
previous steps. Then insert a cable into these two Fabric ports to create a  
link between the top-most and bottom-most units in the Fabric, as shown  
in Figure 31 on page 79.  
This ensures that in the event of a unit failure within the Fabric, the Fabric  
will continue working and no “Fabric split” will occur.  
Save all configuration settings. From the User View, enter the save  
command to save the configuration to your switch.  
Stacking Switch 5500G-EI Units  
1 Ensure that the switch units that you wish to interconnect have the latest  
software agent installed. You can use the display version  
command to check this.  
2 Connect the stacking cable ‘up’ port on one Switch 5500G-EI unit to the  
stacking cable ‘down’ port on another Switch 5500G-EI unit using a  
stacking cable (3C17262) or a resilient stacking cable (3C17263).  
Note the color code on the stacking cable connectors should match the  
color code on the stacking ports, that is, blue for the ‘up’ port that is  
connecting to the physically higher unit, and yellow for the ‘downport  
that is connecting to the physically lower unit.  
3 To create a fully resilient Fabric: using the ‘up’ stacking cable port on the  
top-most and the ‘down’ stacking cable port on the bottom-most units  
insert a stacking cable to create a link between the top-most and  
bottom-most units in the Fabric, as shown in Figure 31 on page 79.  
This ensures that in the event of a unit failure within the Fabric, the Fabric  
will continue working and no “Fabric split” will occur.  
4 Save all configuration settings. From the User View, enter the save  
command to save the configuration to your switch.  
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78  
CHAPTER 4: CREATING AN XRN STACKING FABRIC  
Guidelines For  
Interconnecting  
Units  
This section offers some guidelines for creating a Fabric. Using these  
guidelines will help prevent problems arising when setting up your Fabric.  
The maximum number of switch units that can be interconnected is  
eight.  
It is not possible to create a Fabric by interconnecting a 3Com Switch  
5500 with any other 3Com device (such as a 5500G-EI) or mix  
Enhanced Image (EI) Switch 5500 units with Standard Image (SI) units.  
3Com strongly recommends that you upgrade all switches to be  
interconnected to the latest software agent.  
3Com recommends that you remove the configuration file from a  
switch unit that has previously been used elsewhere in your network  
before you interconnect to an existing unit. If you do not do this,  
problems may be caused by conflicting switch configurations. Use the  
dircommand from the User View to display the configuration files  
stored on the switch and locate the [filename].cfgfile. Do NOT  
under any circumstances remove the 3comoscfg.deffile (this is the  
default configuration file).  
For a detailed description of how XRN Technology operates and  
implementation guidelines, refer to the “Switch 5500 Family  
Configuration Guide” available on the 3Com Web Site at  
www.3com.com.  
Unit Numbering  
within the Fabric  
When a Fabric is created using the Switch 5500 the unit numbering can  
be determined in two ways.  
You can manually assign unit IDs 1 to 8 to specific units using the  
change[self-unit, unit-id] to [1-8,  
auto-numbering]command from the System View. If you  
manually assign unit IDs to a switch via the changecommand the IDs  
will be retained after a power cycle.  
If you add a unit to a Fabric that has previously been manually  
configured with a unit ID and this conflicts with an ID already within  
the Fabric, then the switch with the lowest MAC address assumes the  
ID in question and the other unit will automatically renumber.  
3Com recommends that you manually assign the unit IDs within the  
Fabric if you wish to have predictability of knowing which units have  
which IDs at all times.  
Fabric topology is ‘discovered’ and the units auto-number their IDs.  
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Unit Numbering within the Fabric  
79  
Adding and removing units from the Fabric does not cause any  
renumbering to occur and the Fabric will continue to work normally.  
Renumbering only occurs when the Fabric is next power cycled if the  
units are configured to auto-number.  
The unit LEDs will display the unit number in the Fabric, from 1 to 8.  
Figure 31 Resilient Fabric example (using 4 Switch 5500G-EI units)  
Up Connector (Blue Label)  
DC  
ON  
Caution:  
Do  
This  
disconnect  
device  
has  
power  
all  
ll  
more  
inputs  
Down Connector (Yellow Label)  
than  
one  
ne  
to  
o
power  
off  
power  
input  
.
device  
this  
his  
.
DC  
ON  
Caution:  
This  
sonnect  
device  
has  
er  
more  
STK  
Stacking
one  
ne  
to  
o
power  
off  
power  
input  
.
device  
r
r
this  
his  
.
l
li
i
DC  
ON  
Caution:  
o  
l
This  
sconnect  
device  
has  
wer  
more  
th
ne  
ne  
STK  
Stacking
power  
off  
power  
input  
.
device  
.
r
this  
his  
li
li
DC  
ON  
Caution:  
Do  
This  
l
disconnect  
device  
has  
power  
all  
ll  
more  
inputs  
tha
ne  
STK  
Stacking
power  
off  
ower  
input  
.
device  
.
this  
his  
r
r
l
li
i
l
STK  
Stacking
ckin
r
li
li
l
Stacking Port LED  
Figure 32 Resilient Fabric example (using 4 Switch 5500-EI units)  
If you are having problems, refer to “Solving Fabric Formation Problems”  
on page 86.  
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80  
CHAPTER 4: CREATING AN XRN STACKING FABRIC  
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PROBLEM SOLVING  
5
with the operation of your switch. There is also an explanation of IP  
Solving Problems Indicated by LEDs  
Solving Hardware Problems  
Solving Communication Problems  
Solving Fabric Formation Problems  
If you experience a problem that is not listed here, it may be included in  
the Support section of the Switch 5500 Family Command Reference  
Guide on the CD-ROM that accompanies your switch.  
For Technical Support information, see Appendix D.  
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82  
CHAPTER 5: PROBLEM SOLVING  
Solving Problems  
Indicated by LEDs  
If the LEDs on the switch indicate a problem, refer to the list of suggested  
solutions below.  
The PWR LED does not light  
Check that the power cable is firmly connected to the switch and to the  
supply outlet. If the connection is secure and there is still no power, you  
may have a faulty power cord or an internal fault. Firstly, check the power  
cord by:  
testing it in another device.  
connecting a working power cord to the ‘problem’ device then  
contact your supplier for advice.  
On powering-up, the PWR LED lights Red  
The switch unit has failed its Power On Self Test (POST) because of an  
internal problem. The fault type will be indicated on the unit LEDs.  
Contact your supplier for advice.  
On powering-up, the PWR LED is flashing yellow  
A port has failed and has been automatically disabled. You can verify this  
by checking that the Port LED is quickly flashing Yellow. If a port fails, the  
switch passes its Power On Self Test and continues to operate normally.  
A Port LED is flashing yellow  
The port has failed and has been automatically disabled. The switch  
passes its Power On Self Test and continues to operate normally, even if  
one or more ports are disabled.  
A link is connected and yet the Port LED does not light  
Check that:  
The switch and the device at the other end of the link (or cable) are  
connected securely.  
The devices at both ends of the link are powered-up  
The quality of cable is satisfactory  
Auto-negotiation settings are the same at both ends.  
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Solving Hardware Problems  
83  
Auto-negotiation problems will occur with 10BASE-T or 100BASE-T  
where auto-negotiation is disabled and incorrect cables are being used  
(cross-over or straight)  
Auto-negotiation problems will occur with fiber if:  
The Receiver (RX) and Transceiver (TX) cable connectors are  
swapped  
Fibers are broken  
Auto-negotiation differs at either end (a link appears at the ‘fixed’  
end and not at the auto-negotiation end)  
Solving Hardware  
Problems  
In the rare event of your switch unit experiencing a hardware failure, refer  
to the list of suggested solutions below.  
A fan failure warning message is received  
Your switch has a fan monitoring system that will generate fan failure  
warning messages. Fan failure could potentially reduce the lifetime of the  
switch. The monitoring system polls the fan status at periodic intervals  
while the unit is powered up.  
If one fan has failed in the switch, a warning message will be generated  
in the following ways:  
Unit LED — the seven segment display will show a green flashing ‘f’.  
RMON Trap — if configured, an RMON trap is generated and sent to  
the management workstation.  
Command Line Interface — an indication of a general hardware  
failure is provided through the Top level menu displayed when logging  
on to the CLI. For more detailed information about the failure select  
the display logbuffer command.  
Web interface — an indication of fan failure is provided through the  
Device Summary table for the specific unit. In addition all Summary  
tables turn red to indicate the fan failure.  
If a fan failure warning message is generated:  
1 Power off the unit.  
2 Check that the air vents are not obstructed.  
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84  
CHAPTER 5: PROBLEM SOLVING  
3 Power cycle the unit. To do this, remove and reconnect the AC mains  
supply. If the unit has no AC main supply, remove and reconnect the DC  
RPS supply.  
4 If another fan failure warning message is generated via the Command  
Line Interface or the Web interface, return the unit to 3Com.  
Unit fails, no SNMP fan failure message is received  
1 Power cycle the unit. To do this, remove and reconnect the AC mains  
supply. If the unit has no AC mains supply, remove and reconnect the DC  
RPS supply.  
2 Check the command line interface (display logbuffer command)  
to determine whether a thermal shutdown has occurred.  
3 If no, return the unit:  
If yes, check that:  
The air vents are not obstructed.  
The ambient temperatures and environmental conditions meet those  
specified in Appendix C on page 127.  
4 Power cycle the unit. If a further thermal shutdown occurs, and all  
The switch has identified that the SFP does not meet the minimum  
requirements for the switch and has disabled the port. To correct this  
problem, completely remove the SFP and replace it with a 3Com  
approved SFP. See “Approved 1000BASE-X SFP Transceivers” on page 47  
and “Approved 100BASE-X SFP Transceivers” on page 48.  
Error message indicating that the SFP transceiver is faulty  
To correct this problem, completely remove the SFP and then reinsert it.  
Alternatively, insert another identical SFP. If the problem persists, contact  
3Com Technical Support.  
Solving  
If you experience communication problems with the switch, ensure that:  
Communication  
Problems  
The switch IP address and management VLAN ID has been configured.  
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Solving Communication Problems  
85  
If the switch is separated from your management application by a  
router, ensure that the default gateway IP address within the switch is  
the same as the IP address of the router.  
The switchs IP address has been entered correctly in your network  
management application (such as 3Com Network Director).  
The following is a brief overview of IP addressing, and how to obtain a  
registered IP address.  
IP Addressing  
To be managed correctly, each device on your network (for example a  
switch or Hub) must have a unique IP address. IP addresses have the  
format n.n.n.n where n is a decimal number between 0 and 255. An  
example IP address is 192.168.100.8.  
The IP address is split into two parts:  
The first part (‘192.168.100’ in the example) identifies the network on  
which the device resides  
The second part (‘.8’ in the example) identifies the device within the  
network  
The natural subnet mask for this example is 255.255.255.0.  
If your network has a connection to the external IP network, that is, you  
access the Internet, you must apply for a registered IP address.  
How do you obtain a registered IP Address?  
The IP registration system ensures that every IP address used is unique; if  
you do not have a registered IP address, you may be using an identical  
address to someone else and your network will not operate correctly.  
InterNIC Registration Services is the organization responsible for  
supplying registered IP addresses. The following contact information is  
correct at time of publication:  
World Wide Web site: http://www.internic.net  
If your IP network is internal to your organization only, that is, you do not  
access the Internet, you may use any arbitrary IP address as long as it is  
not being used by another device on your network. 3Com suggests you  
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CHAPTER 5: PROBLEM SOLVING  
use addresses in the range 192.168.0.0 to 192.168.255.255 with a  
subnet mask of 255.255.255.0.  
These suggested IP addresses are part of a group of IP addresses that  
have been set aside specially for use ‘in house’ only.  
A device is connected to a Switch 5500-EI PWR or Switch 5500G-EI  
but power is not being supplied  
If power is not being supplied to a device connected to a Switch 5500  
PWR, you should do the following checks:  
Check that the device is compliant with the 802.3af standard ref. [18].  
The 5500-EI PWR will supply power through the front panel ports to  
802.3af compliant and many pre-standard devices.  
Check that power budget for the switch has not been exceeded.  
If the power budget has been exceeded, then by default, the powered  
device connected to the Power over Ethernet port with the lowest  
priority port will lose power. However, if all the devices connected to  
the switch have equal priority levels, then the port with the highest  
number will lose power.  
By default, the switch will allow a device to receive power as long as  
Power over Ethernet power supply has 18 watts spare in its power  
budget. If this much power is not available, the device will not be  
powered (unless it has a higher priority than existing powered ports)  
and a PoE fault will be reported for that port. If enough power  
subsequently becomes available, the port will be powered.  
Check that the port has not had a power limit imposed on it.  
The Switch 5500 PWR units do not provide PoE on the Gigabit SFP ports.  
Solving Fabric  
Formation  
Problems  
If you are having problems with correctly forming a fabric, first ensure  
that Spanning Tree is enabled. If it is enabled, do the following:  
1 Power off all units in the fabric.  
2 Check all the cable connections in the fabric.  
3 Check the ports have been enabled as fabric ports.  
4 Power on all units in the fabric.  
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UPGRADING SOFTWARE  
6
This chapter describes how to upgrade software to your Switch 5500. It  
covers the following topics:  
The Contents of the Executable File  
Upgrading from the Command Line Interface  
Upgrading from the Bootrom Interface  
Bootrom Upgrade  
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CHAPTER 6: UPGRADING SOFTWARE  
The Contents of the  
Executable File  
The self extracting executable file (xxxxxxxx.exe — where xxxxxxxx is the  
file name of your switch) contains the following:  
End User License  
Release Notes  
Application Software  
Web Software  
Bootrom Software  
Bundled File used with 3ND upgrade wizard — e.g.  
s4a03_01_04s56NetMan.zip  
Bundled files with the extension NetMan.zip, can be used to upgrade  
your switch using the 3Com Network Director Agent Update. Any  
attempt to upgrade individual .web, .btmor .appfiles using 3Com  
Network Director will fail. These files should be used to upgrade your  
switch as described below.  
Any attempt to upgrade the switch directly with xxxxxxxx.exeand  
xxxxxxxxNetMan.zipwill fail. The individual .web, .btmor .app  
files should be used to upgrade your switch as described below.  
Upgrading from the  
Command Line  
Interface  
This section describes how to upgrade files to your switch from the  
Command Line Interface (CLI).  
Introduction Before upgrading the software to your switch from the CLI, it is important  
to check the contents of the flash to ensure that there is enough space to  
download the new files.  
The flash space needed for the new files is approximately 5.5 MB.  
1 To check the contents of the flash, logon to your switch either via a telnet  
connection or directly via the console to display the User View in the CLI  
and enter the following:  
dir unit1>flash:  
A file list similar to the following is displayed:  
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Upgrading from the Command Line Interface  
89  
Directory of unit1>flash:/  
0 -rw- 714784 Apr 02 2005 01:36:16 s4h01_04.web  
1 -rw- 11043  
2 -rw- 11427  
Apr 02 2005 01:37:17 3ComOScfg.def  
Apr 02 2005 00:01:01 3ComOScfg.cfg  
3 -rw- 4529259 Apr 02 2005 01:39:57 s4b03_01_04s56.app  
15367 KB total (10215 KB free)  
2 You can check the contents of the flash for the remaining units in the  
fabric by entering:  
dir unit2>flash:  
dir unit3>flash:  
dir unit4>flash:  
dir unit5>flash:  
dir unit6>flash:  
dir unit7>flash:  
The file list should contain one of each file type (.web, .def, .cfg  
and .app).  
3 Any additional files should be considered for deletion to allow maximum  
space for downloading the new files. To delete a file from the list enter:  
delete/unreserved unit1>flash:/filename  
To delete files from the list for the remaining units in a fabric, replace  
unit1with unit2(on the next line) and so on for each switch in the  
fabric.  
4 The /unreservedoption will cause the file to be deleted from both the  
flash and the recycle-bin. To check that deleted files have been removed  
from the recycle-bin enter the following:  
reset recycle-bin unit1>flash:/  
If the recycle-bin is empty the following is displayed:  
% File can’t be found “unitN>flash:/”  
To check that deleted files have been removed from the recycle-bin for  
the remaining units in a fabric, replace unit1with unit2and so on for  
each switch in the fabric.  
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CHAPTER 6: UPGRADING SOFTWARE  
The following steps enable you to backup each switch in the fabric:  
1 The default configuration file must have the name 3ComOScfg.def.  
This file is only used if there is no active configuration file (.cfg) in the  
flash file system. The default configuration file is the same for every  
Switch 5500 of the same type (i.e Switch 5500 28-port) and is different  
to the file for a Switch 5500 of a different type (i.e Switch 5500 52-port).  
A sample default configuration file is provided by factory default with the  
switch and is not supplied in this upgrade.  
Enter the following command:  
more 3comoscfg.def  
The display similar to the following shows on the first line of the file:  
#28-port 3com version 3.1.4  
This file is infrequently changed, so the version number may not match  
the application software version number.  
The default configuration file can be created by saving the configuration  
and renaming the xxx.cfgfile as 3ComOScfg.def.  
To back up the default configuration file on each switch in the fabric,  
enter:  
copy unit1>flash:/3ComOScfg.def  
unit1>flash:/030100cfg.def  
Replace unit1with unit2and so on for each switch in the fabric.  
2 The active configuration file can been given any name, provided it ends in  
the extension .cfg. 3Com recommends that each fabric is given a  
unique configuration file name so that when the file is saved to an  
external TFTP server, it is clear which fabric the file belongs to.  
To back up the active configuration file on each switch in the fabric,  
enter:  
copy unit1>flash:/3ComOScfg.cfg  
unit1>flash:/030100cfg.cfg  
Replace unit1with unit2and so on for each switch in the fabric.  
3Com recommends that you save the active configuration file for each  
switch in the fabric is also saved to an external storage device. To save the  
active configuration file to a TFTP server in User View enter:  
tftp aaa.aaa.aaa.aaa put unit1>flash:/3ComOScfg.cfg  
3ComOScfg_1.cfg  
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Upgrading from the Command Line Interface  
91  
(where aaa.aaa.aaa.aaa is the IP address of the TFTP server)  
Replace unit1with unit2and _1.cfgwith _2.cfgand so on for  
each switch in the fabric.  
3 The Web user interface file and the application file must be the same on  
all switches in the fabric. It is not necessary to backup these files because  
they will have a new version number.  
TFTP To upgrade software to your switch via TFTP do the following:  
1 To download the application file, enter:  
tftp aaa.aaa.aaa.aaa get s4a03_01_04s56.app  
(where aaa.aaa.aaa.aaa is the IP address of the TFTP server)  
s4aindicates the switch filename, see Table 24 for further details:  
Table 24 Switch 5500 Family Filenames  
Filename Prefix  
Switch  
s4a  
s4b  
s4c  
s4e  
SuperStack 4 Switch 5500-SI software  
SuperStack 4 Switch 5500-EI software  
SuperStack 4 Switch 5500G-EI software  
SuperStack 4 Switch 5500 Family bootrom software  
2 To download the Web user interface file, enter:  
tftp aaa.aaa.aaa.aaa get s4h01_04.web  
3 To download the default configuration file, enter  
tftp aaa.aaa.aaa.aaa get 3ComOScfg.def  
4 To download the bootrom file, enter:  
tftp aaa.aaa.aaa.aaa get s4e01_04.btm  
The bootrom firmware may not require upgrading for every software  
upgrade. To display the bootrom firmware version in any view enter:  
display version  
The following should be displayed:  
Bootrom version is 1.04  
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CHAPTER 6: UPGRADING SOFTWARE  
The number 1.04will match the version number in the bootrom file,  
which is 01_04. If the version number of the file matches the displayed  
version, there is no need to download the bootrom (.btm) file.  
File Distribution  
The following commands enable you to distribute your downloaded files  
to the remaining switches in the fabric:  
1 To copy the new software file to each switch in the fabric, enter the  
following from User View:  
copy unit1>flash:/s4a03_01_04s56.app unit2>flash:/  
Replace unit2with unit3and so on for each switch in the fabric.  
2 To copy the new default configuration file to each switch in the fabric,  
enter:  
copy unit1>flash:/3ComOScfg.def unit2>flash:/  
Replace unit2with unit3and so on for each switch in the fabric.  
3 To copy the new Web user interface file to each switch in the fabric,  
enter:  
copy unit1>flash:/s4e01_04.web unit2>flash:/  
Replace unit2with unit3and so on for each switch in the fabric.  
4 To copy the new Bootrom firmware file to each switch in the fabric, enter:  
copy unit1>flash:/s4e01_04.btm unit2>flash:/  
Replace unit2with unit3and so on for each switch in the fabric.  
Command Line Interface Switch Setup  
1 To set the switch to boot from the new software you have downloaded,  
enter the following:  
boot boot-loader unit1>flash:/s4a03_01_04s56.app  
To set the remaining switches in the fabric to boot from the new  
software, replace unit1with unit2and so on for each switch in the  
fabric.  
2 To set the switch to load the new bootrom firmware, enter:  
boot bootrom unit1>flash:/s4e01_04.btm  
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Upgrading from the Command Line Interface  
93  
To set the remaining switches in the fabric to load the new bootrom  
firmware, replace unit1with unit2and so on for each switch in the  
fabric.  
3 You will now need to reboot the fabric for the changes to take effect. The  
switch will upgrade the bootrom firmware and boot from the specified  
software .appfile.  
The files that you have saved in the backup phase should be deleted once  
the upgrade has completed successfully.  
FTP (via a network To upgrade software to your switch via FTP do the following:  
port)  
1 Enter the following command from User View:  
ftp aaa.aaa.aaa.aaa  
(where aaa.aaa.aaa.aaa is the IP address of the FTP server)  
If the FTP server has been successfully located, the following information  
is displayed:  
Trying...  
Press CTRL+K to abort  
Connected  
Information on your FTP server is displayed, logon with your username  
and password.  
2 To download the application file, enter:  
binary  
get s4a03_01_04s56.app  
The following information is displayed if the download has been  
successful:  
200 PORT command successful.  
150 Opening ASCII mode data connection for  
s4a03_01_04s56.app(3765073 bytes).......226 Transfer  
complete.  
FTP: 3765073byte(s) received in 376.5073 second(s)  
10000.00 byte(s)/sec.  
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CHAPTER 6: UPGRADING SOFTWARE  
Download the web file and the bootrom file in the same way.  
3 Enter quitto exit.  
4 Copy these files as described in “File Distribution”, steps 1 to 4 on  
page 92.  
5 Now activate these files as described in “Command Line Interface Switch  
Setup”, steps 1 to 3 on page 92.  
XModem (via the To upgrade software to your switch via XModem do the following:  
console cable)  
1 From the User View, enter:  
xmodem get unit1>flash:/s4a03_01_04s56.app  
The following information is displayed:  
**** WARNING ****  
xmodem is a slow transfer protocol limited to the  
current speed  
settings of the auxiliary ports.  
During the course of the download no exec input/output  
will be available!  
Proceed?[Y/N]y  
Destination filename  
[unit1>flash:/s4a03_01_04s56.app]?  
Before pressing ENTER you must choose ‘YES’ or  
‘NO’[Y/N]:  
2 Enter yto display the following message:  
Download with XMODEM protocol...  
...C..  
3 As the file is downloading, start the XModem send file process with  
terminal emulation software, such as Microsoft Hyperterminal.  
When the file download is complete the message Download  
successful!is displayed.  
4 Repeat steps 1 to 3 for each of the remaining files.  
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Upgrading from the Bootrom Interface  
95  
5 Copy these files as described in “File Distribution”, steps 1 to 4 on  
page 92.  
6 Now activate these files as described in “Command Line Interface Switch  
Setup”, steps 1 to 3 on page 92.  
Upgrading from the  
Bootrom Interface  
This section describes how to upgrade your switch from the Bootrom  
Interface.  
Introduction When the switch is running the initial boot phase via the console, the  
following prompt is displayed with a five second countdown timer:  
Press CTRL-B to enter Boot Menu... 4  
followed by a password prompt:  
password:  
1 Select Enter (the default is no password) to display the following boot  
menu:  
BOOT MENU  
1. Download application file to flash  
2. Select application file to boot  
3. Display all files in flash  
4. Delete file from flash  
5. Modify bootrom password  
6. Enter bootrom upgrade menu  
7. Skip current configuration file  
8. Set bootrom password recovery  
9. Set switch startup mode  
0. Reboot  
Enter your choice(0-9):  
2 Enter the appropriate menu number to select a specific option.  
Before upgrading the software to your switch from the Bootrom Interface  
it is important to check the contents of the flash to ensure that there is  
enough space to download the new files.  
3 Select option 3 from the Boot Menu. A file list similar to the following is  
displayed:  
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CHAPTER 6: UPGRADING SOFTWARE  
Boot menu choice: 3  
File Number File Size (bytes) File Name  
====================================================  
1
4
snmpboots  
2
151  
private-data.txt  
s4b03_01_04s56.app  
s4h01_04.web  
3comoscfg.def  
3comoscfg.cfg  
[test.cfg]  
3(*)  
4649088  
576218  
10301  
10369  
10369  
4
5
6
7
Free Space: 10469376 bytes  
The current application file is s4b03_01_04s56.app  
(*)-with main attribute; (b)-with backup attribute  
(*b)-with main and backup attribute  
This option displays all the files in flash and also indicates the file that the  
switch is currently set to boot from (marked with an asterisk). A ‘b’ by the  
file number indicates the file is a backup boot file.  
The files which are required by the switch are:  
s4h01_04.web  
3comoscfg.def  
3comoscfg.cfg  
s4b03_01_04s56.app  
The s4b03_01_04s56.appfile is the boot software. The name of this  
file will vary depending on the switch type and the release version.  
If the filename is in brackets, for example [test.cfg], this indicates  
that the file has been deleted from the CLI but is still present in the  
recycle-bin.  
Any additional files should be considered for deletion to allow maximum  
space for downloading the new files.  
4 To delete a file from the list select option 4 from the Boot Menu and  
select the file number you wish to delete.  
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Upgrading from the Bootrom Interface  
97  
TFTP To upgrade software to your switch via TFTP, do the following:  
1 From the Boot Menu, select option 1 (Download application file to flash)  
to display the following:  
1. Set TFTP protocol parameter  
2. Set FTP protocol parameter  
3. Set XMODEM protocol parameter  
0. Return to boot menu  
Enter your choice(0-3):  
2 Select option 1 to display the following:  
Load File name:  
Switch IP address:  
Server IP address:  
3 Enter the file name, switch IP address and Server IP address to display the  
following:  
Are you sure to download file to flash? Yes or No(Y/N)  
4 Enter y and the following information is displayed to indicate the file is  
downloading:  
Attached TCP/IP Interface to netdrv0  
Attaching network interface lo0...done  
Loading.....done  
Free flash Space: 10456064 bytes  
Writing flash....done!  
Please input the file attribute (main/backup/none):none  
done!  
5 Repeat steps 1 to 4 for each of the remaining files.  
FTP To upgrade software to your switch via FTP, do the following:  
1 From the Boot Menu, select option 1 (Download application file to flash)  
to display the following:  
1. Set TFTP protocol parameter  
2. Set FTP protocol parameter  
3. Set XMODEM protocol parameter  
0. Return to boot menu  
Enter your choice(0-3):  
2 Select option 2 to display the following:  
Load File name:  
Switch IP address:  
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CHAPTER 6: UPGRADING SOFTWARE  
Server IP address:  
FTP User Name:  
FTP User Password:  
3 Enter the file name, switch IP address, Server IP address and FTP user  
name and password to display the following:  
Are you sure to download file to flash? Yes or No(Y/N)  
4 Enter y and the following information is displayed to indicate the file is  
downloading:  
Loading.....done  
Free flash Space: 10456064 bytes  
Writing flash....done!  
Please input the file attribute (main/backup/none):none  
done!  
5 Repeat steps 1 to 4 for each of the remaining files.  
XModem To upgrade software to your switch via XModem, do the following:  
1 From the Boot Menu, select option 1 (Download application file to flash)  
to display the following:  
1. Set TFTP protocol parameter  
2. Set FTP protocol parameter  
3. Set XMODEM protocol parameter  
0. Return to boot menu  
Enter your choice(0-3):  
2 Select option 3 to display the following:  
Please select your download baud rate:  
1. 9600  
2.*19200  
3. 38400  
4. 57600  
5. 115200  
0. Return  
Enter your choice(0-5):  
3 Select option 2 to set the baud rate to 19200.  
You will also need to change the baud rate on Hyperterminal to 19200  
bps and select XModem protocol.  
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Bootrom Upgrade  
99  
If supported, you can select Option 5 to increase the speed of the  
download.  
4 Press Enter to start the download. The following information is displayed:  
Now please start transfer file with XMODEM protocol  
If you want to exit, Press <Ctrl+X>  
Loading...CCCCCCCCCCCCCCCCCCCCCCCCCCCCC  
5 As the file is downloading, start the XModem send file process with  
terminal emulation software, such as Microsoft Hyperterminal.  
When the download is complete, the following information is displayed:  
Please input the file attribute (main/backup/none):none  
done!  
6 Repeat steps 1 to 5 for each of the remaining files.  
Bootrom Upgrade  
This section describes how to indicate which file the switch is to boot  
from once the software has been loaded.  
1 From the Boot menu, select option 2 to display the following:  
Select application file to boot:  
1. set application file to boot  
2. set configuration files  
3. set web files  
0. return  
Enter your choice (0-3):  
2 Select option 2 to display a file list similar to the following:  
Boot menu choice: 2  
File Number  
====================================================  
1(*) 4649088 s4b03_01_04s56.app  
File Size (bytes) File Name  
Free Space: 10491904 bytes  
The current application file is s4b03_01_04s56.app  
(*)-with main attribute;(b)-with backup attribute  
(*b)-with both main and backup attribute  
Please input the file number to change:  
An asterisk (*) indicates the current main boot file.  
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CHAPTER 6: UPGRADING SOFTWARE  
A similar screen will be displayed for the configuration files and the web  
files.  
In each case, the file is given the attribute “main” or “backup”  
Bootrom Upgrade via To upgrade the bootrom firmware from the Boot menu via TFTP do the  
TFTP following:  
1 From the Boot menu, select option 6 to display the bootrom upgrade  
menu as shown:  
Bootrom update menu:  
1. Set TFTP protocol parameter  
2. Set FTP protocol parameter  
3. Set XMODEM protocol parameter  
0. Return to boot menu  
Enter your choice(0-3):  
2 Select option 1 to display the following:  
Load File name:  
Switch IP address:  
Server IP address:  
3 Enter the file name, switch IP address and Server IP address to display the  
following:  
Are you sure to update your bootrom? Yes or No(Y/N)  
4 Enter y and the following information is displayed to indicate the file is  
downloading:  
Attached TCP/IP interface to netdrv0  
Attaching network interface Io0...done  
Loading.................................  
...............done  
Bootrom updating............done!  
Bootrom Upgrade via To upgrade the bootrom firmware from the Boot menu via FTP do the  
FTP following:  
1 From the Boot menu, select option 6 to display the bootrom upgrade  
menu as shown:  
Bootrom update menu:  
1. Set TFTP protocol parameter  
2. Set FTP protocol parameter  
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Bootrom Upgrade 101  
3. Set XMODEM protocol parameter  
0. Return to boot menu  
Enter your choice(0-3):  
2 Select option 2 to display the following:  
Load File name:  
Switch IP address:  
Server IP address:  
FTP User Name:  
FTP User Password:  
3 Enter the file name, switch IP address, Server IP address, FTP user name  
and password to display the following:  
Are you sure to update your bootrom? Yes or No(Y/N)  
4 Enter y and the following information is displayed to indicate the file is  
downloading:  
Attached TCP/IP interface to netdrv0  
Attaching network interface Io0...done  
Loading.................................  
...............done  
Bootrom updating............done!  
Bootrom Upgrade via To upgrade the bootrom firmware from the Boot menu via XModem do  
XModem the following:  
1 From the Boot Menu, select option 6 to display the following:  
1. Set TFTP protocol parameter  
2. Set FTP protocol parameter  
3. Set XMODEM protocol parameter  
0. Return to boot menu  
Enter your choice(0-3):  
2 Select option 3 to display the following:  
Please select your download baud rate:  
1. 9600  
2.*19200  
3. 38400  
4. 57600  
5. 115200  
0. Return  
Enter your choice(0-5):  
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102  
CHAPTER 6: UPGRADING SOFTWARE  
3 Select option 2 to set the baud rate to 19200.  
You will also need to change the baudrate on Hyperterminal to 19200  
bps and select XModem protocol.  
If supported, you can select Option 5 to increase the speed of the  
download.  
4 Press Enter to start the download. The following information is displayed:  
Now please start transfer file with XMODEM protocol  
If you want to exit, Press <Ctrl+X>  
Loading  
...CCCCCCCCCCCCCCCCCCCCCCCCCCCCC  
5 As the file is downloading, start the XModem send file process with  
terminal emulation software, such as Microsoft Hyperterminal.  
When the download is complete, the following information is displayed:  
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCdone!  
Bootrom updating.........done!  
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SAFETY INFORMATION  
A
You must read the following safety information before installing or  
removing any components, or completing any maintenance procedures  
on the Switch 5500 Family.  
WARNING: Warnings contain directions that you must follow for your  
personal safety. Follow all directions carefully.  
You must read the following safety information carefully before you  
install or remove the unit.  
AVERTISSEMENT: Les avertissements présentent des consignes que vous  
devez respecter pour garantir votre sécurité personnelle. Vous devez  
respecter attentivement toutes les consignes.  
Nous vous demandons de lire attentivement les consignes suivantes de  
sécurité avant d’installer ou de retirer l’appareil.  
VORSICHT: Warnhinweise enthalten Anweisungen, die Sie zu Ihrer  
eigenen Sicherheit befolgen müssen. Alle Anweisungen sind sorgfältig zu  
befolgen.  
Sie müssen die folgenden Sicherheitsinformationen’ sorgfältig  
durchlesen, bevor Sie das Gerät installieren oder ausbauen.  
ADVERTENCIA: Las advertencias contienen indicaciones que debe  
respetar por su seguridad personal.  
Siga las indicaciones con cuidado. Antes de instalar o extraer la unidad,  
debe leer detenidamente la siguiente información de seguridad.  
AVVERTENZA: le avvertenze contengono istruzioni indispensabili per  
assicurare la sicurezza personale. Seguire attentamente tutte le  
indicazioni fornite. Prima di installare o rimuovere l'unità, leggere  
attentamente le seguenti informazioni di sicurezza.  
OSTRZEŻENIE: Ostrzeżenia zawierają wskazówki, których należy  
przestrzegać dla własnego bezpieczeństwa. Należy uważnie  
przestrzegać wszystkich wskazówek. Przed instalacją lub demontażem  
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104  
APPENDIX A: SAFETY INFORMATION  
urządzenia należy uważnie przeczytać poniższe informacje o  
bezpieczeństwie.  
Power Cord Set — Japan  
Important Safety Information  
WARNING: Installation and removal of the unit must be carried out by  
qualified personnel only.  
WARNING: If installing the Switch 5500 together (one on top of the  
other) with other 3Com units that are shallower than the 5500, the  
Switch 5500 unit must be installed below the shallower units.  
WARNING: The unit must be earthed (grounded) or must be connected  
to an earthed power supply to ensure compliance with safety standards.  
WARNING: Power Cord Set:  
This must be approved for the country where it is used:  
U.S.A. and  
Canada  
The cord set must be UL-approved and CSA certified.  
The minimum specification for the flexible cord is:  
No. 18 AWG  
Type SV or SJ  
3-conductor  
The cord set must have a rated current capacity of at least  
10A.  
The attachment plug must be an earth-grounding type  
with a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A,  
250V) configuration.  
United  
Kingdom only  
The supply plug must comply with BS1363 (3-pin 13 amp)  
and be fitted with a 5A fuse which complies with BS1362.  
The mains cord must be <HAR> or <BASEC> marked and  
be of type H03VVF3GO.75 (minimum).  
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Important Safety Information 105  
Europe only:  
The supply plug must comply with CEE 7/7 (“SCHUKO”).  
The mains cord must be <HAR> or <BASEC> marked and  
be of type H03VVF3GO.75 (minimum).  
Denmark  
The supply plug must comply with section 107-2-D1,  
standard DK2-1a or DK2-5a.  
Switzerland  
The supply plug must comply with SEV/ASE 1011.  
WARNING: The appliance coupler (the connector to the unit and not the  
wall plug) must have a configuration for mating with an EN60320/IEC320  
appliance inlet.  
WARNING: The socket outlet must be near to the unit and easily  
accessible.  
WARNING: This unit operates under SELV (Safety Extra Low Voltage)  
conditions according to IEC 60950. The conditions are only maintained if  
the equipment to which it is connected also operates under SELV  
conditions.  
WARNING: France and Peru only:  
This unit cannot be powered from ITsupplies. If your supplies are of IT  
type, this unit must be powered by 230V (2P+T) via an isolation  
transformer ratio 1:1, with the secondary connection point labelled  
Neutral, connected directly to earth (ground).  
Impédance à la terre.  
WARNING: U.K. only:  
If connecting a modem to the console port of the Switch 5500, only use a  
modem which is suitable for connection to the telecommunications  
system.  
WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannot  
be used as standard traditional telephone sockets, or to connect the unit to a  
traditional PBX or public telephone network. Only connect RJ-45 data  
connectors, network telephony systems, or network telephones to these  
sockets.  
Either shielded or unshielded data cables with shielded or unshielded  
jacks can be connected to these data sockets.  
WARNING: Fiber Optic ports – Optical Safety  
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106  
APPENDIX A: SAFETY INFORMATION  
Class 1  
LASER PRODUCT  
Never look at the transmit laser while it is powered on. Never look directly  
at the fiber TX port and fiber cable ends when they are powered on.  
WARNING: This device has more than one power input. Disconnect all  
power inputs to power off this device.  
WARNING: The installation of the Redundant Power Supply (RPS) should  
only be carried out by properly trained and qualified personnel.  
WARNING: These instructions must be read in conjunction with the RPS  
flyer and the safety and installation instructions supplied with your RPS.  
WARNING: When powering any Switch 5500 from an RPS, the unit must  
be earthed (grounded). This can be achieved by either connecting the  
power cord to the unit or by connecting the earth terminal on the rear of  
the unit to a reliable electrical earth, or by connecting both. It must be  
ensured that the earth connection is made before connecting the DC  
supply from the RPS.  
WARNING: Any RPS must be approved as an unearthed SELV output in  
accordance with IEC 60950-1/UL 60950-1/EN 60950-1.  
WARNING: The characteristics of the Switch 5500 DC supply input are  
given in Appendix C on page 127.  
WARNING: RPS Manufacturers recommendations must be followed  
when connecting the cable to the RPS.  
WARNING: Ensure that the circuit breaker in the RPS is in the open (off)  
position when connecting the cable to the RPS.  
WARNING: You must ensure that the positive terminal on the switch is  
connected to the positive (common) terminal of the RPS and that the  
negative terminal on the switch is connected to the negative (circuit  
breaker) terminal of the RPS.  
WARNING: Ensure that the circuit breaker in the RPS is in the open (off)  
position when connecting the RPS cable and connector to the switch.  
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L’information de Sécurité Importante 107  
L’information de Sécurité Importante  
AVERTISSEMENT: L'installation et la dépose de ce groupe doivent être  
confiés à un personnel qualifié.  
AVERTISSEMENT: Si vous entassez l'unité switch avec les unités  
SuperStack 4 Hub, l'unité Switch 5500 doit être installée en dessous des  
unités Hub plus étroites.  
AVERTISSEMENT: Vous devez mettre l’appareil à la terre (à la masse) ce  
groupe.  
AVERTISSEMENT: Brancher l’unité à une source de courant mise à la  
terre pour assurer la conformité aux normes de sécurité.  
AVERTISSEMENT: Cordon électrique:  
Il doit être agréé ans le pays d'utilisation:  
Etats-Unis et  
Canada  
Le cordon doit avoir reçu l'homologation des UL et un  
certificat de la CSA  
Le cordon souple doit respecter, à titre minimum, les  
spécifications suivantes :  
calibre 18 AWG  
type SV ou SJ  
à 3 conducteurs  
Le cordon doit être en mesure d'acheminer un courant  
nominal d'au moins 10 A  
La prise femelle de branchement doit être du type à mise à la  
terre (mise à la masse) et respecter la configuration NEMA  
5-15P (15 A, 125 V) ou NEMA 6-15P (15 A, 250 V)  
Danemark  
Europe  
La prise mâle d'alimentation doit respecter la section 107-2  
D1 de la norme DK2 1a ou DK2 5a  
La prise secteur doit être conforme aux normes CEE 7/7  
(“SCHKO”)  
LE cordon secteur doit porter la mention <HAR> ou  
<BASEC> et doit être de type HO3VVF3GO.75 (minimum).  
Suisse  
La prise mâle d'alimentation doit respecter la norme SEV/ASE  
1011  
AVERTISSEMENT: Le coupleur d'appareil (le connecteur du groupe et  
non pas la prise murale) doit respecter une configuration qui permet un  
branchement sur une entrée d'appareil EN60320/CEI 320.  
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108  
APPENDIX A: SAFETY INFORMATION  
AVERTISSEMENT: La prise secteur doit se trouver à proximité de  
l’appareil et son accès doit être facile.  
AVERTISSEMENT: Lappareil fonctionne à une tension extrêmement  
basse de sécurité qui est conforme à la norme CEI 60950. Ces conditions  
ne sont maintenues que si l'équipement auquel il est raccordé fonctionne  
dans les mêmes conditions.  
AVERTISSEMENT: France et Pérou uniquement:  
Ce groupe ne peut pas être alimenté par un dispositif à impédance à la  
terre. Si vos alimentations sont du type impédance à la terre, ce groupe  
doit être alimenté par une tension de 230 V (2 P+T) par le biais d'un  
transformateur d'isolement à rapport 1:1, avec un point secondaire de  
connexion portant l'appellation Neutre et avec raccordement direct à la  
terre (masse).  
AVERTISSEMENT: Points d’accès RJ-45. Ceux-ci sont protégés par des  
prises de données. Ils ne peuvent pas être utilisés comme prises de  
téléphone conventionnelles standard, ni pour la connection de l’unité à  
un réseau téléphonique central privé ou public. Raccorder seulement  
connecteurs de données RJ-45, systèmes de réseaux de téléphonie ou  
téléphones de réseaux à ces prises.  
Il est possible de raccorder des câbles protégés ou non protégés avec des  
jacks protégés ou non protégés à ces prises de données.  
AVERTISSEMENT: Ports pour fibres optiques – sécurité sur le plan  
optique.  
Dispositif Laser  
de Classe 1  
Ne regardez jamais le laser d'émission en utilisant un dispositif  
d'agrandissement, tant qu'il est sous tension. Ne regardez jamais  
directement le port TX à fibres optiques et les extrémités des câbles à  
fibres optiques tant qu'ils sont sous tension.  
AVERTISSEMENT: Ce périphérique comporte plusieurs entrées  
d'alimentation. Déconnectez toutes les entrées d'alimentation afin de le  
mettre hors tension.  
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L’information de Sécurité Importante 109  
AVERTISSEMENT: L'installation du RPS (Redundant Power Supply) ne  
doit être confiée qu'à un personnel formé et qualifié.  
AVERTISSEMENT: Ces instructions doivent être lues conjointement avec  
les instructions d'installation et les consignes de sécurité qui  
accompagnent le RPS.  
AVERTISSEMENT: Lorsqu'un commutateur Switch 5500 est alimenté par  
un module RPS, l'unité doit être mise à la terre. Pour cela, branchez le  
cordon d'alimentation à l'unité ou branchez la borne de mise à la terre  
située à l'arrière de l'unité à une prise de terre fiable, ou procédez aux  
deux raccordements. Assurez-vous que l'unité est mise à la terre avant de  
raccorder l'alimentation CC du RPS.  
AVERTISSEMENT: Le RPS doit être approuvé en tant que sortie SELV non  
reliée à la terre, conformément à la norme IEC 60950-1/UL 60950-1/EN  
60950-1.  
AVERTISSEMENT: Ces instructions doivent être lues conjointement avec  
les caractéristiques de l'alimentation CC du Switch 5500 fournies en  
annexe C, Spécifications techniques.  
AVERTISSEMENT: Vous devez respecter les recommandations du  
fabricant lors du branchement du câble au module RPS.  
AVERTISSEMENT: Assurez-vous que le disjoncteur du RPS est ouvert (off)  
lors du branchement du câble au RPS.  
AVERTISSEMENT: Assurez-vous de brancher la borne positive du  
commutateur à la borne positive (commune) du RPS, et la borne négative  
du commutateur à la borne négative (disjoncteur) du RPS.  
AVERTISSEMENT: Assurez-vous que le disjoncteur du RPS est ouvert (off)  
lors du branchement du câble et du connecteur du RPS au commutateur  
3Com.  
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110  
APPENDIX A: SAFETY INFORMATION  
Wichtige Sicherheitsinformationen  
VORSICHT: Alle Verfahren die in dieser Anleitung beschrieben werden  
gelten für alle Modelle, sofern nicht anders angegeben. Wo eine  
Vorgehensweise für die Schalter 5500-SI 24 und Schalter 5500-SI 52 gilt  
wird nur der Begriff Schalter verwendet.  
Diese Anleitung ist für Netzwerkadministratoren vorgesehen, die für die  
Installation und das Einstellen von Netzwerkkomponenten verantwortlich  
sind; Erfahrung im Umgang mit LANs (Local Area Networks) wird  
VORSICHT: Die Installation und der Ausbau des Geräts darf nur durch  
Fachpersonal erfolgen.  
VORSICHT: Wenn die Switch 5500 Einheit in einer Stapel mit anderen  
SuperStack 4 Hub Einheiten eingebaut werden soll, muß die Switch 5500  
Einheit unter die schmaleren Hub Einheiten eingebaut werden.  
VORSICHT: Das Gerät muß geerdet sein.  
VORSICHT: Das Gerät muß an eine geerdete Steckdose angeschlossen  
werden, die europäischen Sicherheitsnormen erfüllt.  
VORSICHT: Der Anschlußkabelsatz muß mit den Bestimmungen des  
Landes übereinstimmen, in dem er verwendet werden soll.  
VORSICHT: Der Gerätestecker (der Anschluß an das Gerät, nicht der  
Wandsteckdosenstecker) muß eine passende Konfiguration für einen  
Geräteeingang gemäß EN60320/IEC320 haben.  
VORSICHT: Die Netzsteckdose muß in der Nähe des Geräts und leicht  
zugänglich sein. Die Stromversorgung des Geräts kann nur durch  
Herausziehen des Gerätenetzkabels aus der Netzsteckdose unterbrochen  
werden.  
VORSICHT: Europe  
Das Netzkabel muß vom Typ HO3VVF3GO.75 (Mindestanforderung)  
sein und die Aufschrift <HAR> oder <BASEC> tragen.  
Der Netzstecker muß die Norm CEE 7/7 erfüllen (”SCHUKO”).  
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Wichtige Sicherheitsinformationen 111  
VORSICHT: Der Betrieb dieses Geräts erfolgt unter den  
SELV-Bedingungen (Sicherheitskleinstspannung) gemäß IEC 60950. Diese  
Bedingungen sind nur gegeben, wenn auch die an das Gerät  
angeschlossenen Geräte unter SELV-Bedingungen betrieben werden.  
VORSICHT: RJ-45-Porte. Diese Porte sind geschützte Datensteckdosen.  
Sie dürfen weder wie normale traditionelle Telefonsteckdosen noch für  
die Verbindung der Einheit mit einem traditionellem privatem oder  
öffentlichem Telefonnetzwerk gebraucht werden. Nur  
RJ-45-Datenanscluße, Telefonnetzsysteme or Netztelefone an diese  
Steckdosen anschließen.  
Entweder geschützte oder ungeschützte Buchsen dürfen an diese  
Datensteckdosen angeschlossen werden.  
VORSICHT: Faseroptikanschlüsse – Optische Sicherheit  
.
Laser Gerät  
der Klasse 1  
Sie sollten die/den eingeschaltete(n) Übertragungs-Laser niemals durch  
eine Vergrößerungseinrichtung betrachten. Schauen Sie niemals direkt  
auf den Lichtwellen-Übertragungsanschluss und die Kabelenden des  
Lichtwellenleiterkabels, während Daten übertragen werden.  
VORSICHT: Dieses Gerät besitzt mehrere Eingänge zur Stromversorgung.  
Trennen Sie das Gerät zum Ausschalten von allen Stromquellen.  
VORSICHT: Die RPS (Redundant Power Supply, redundante  
Stromversorgung) darf nur von entsprechend geschultem und  
qualifiziertem Fachpersonal installiert werden.  
VORSICHT: Diese Anleitungen müssen im Zusammenhang mit den  
Sicherheitshinweisen und Installationsanleitungen zu Ihrer RPS gelesen  
werden.  
VORSICHT: Bei der Stromversorgung eines Switch 5500 über eine RPS  
muss das Gerät geerdet sein. Hierfür kann entweder das Netzkabel an  
das Gerät angeschlossen werden oder die Erdungsklemme an der  
Rückseite des Geräts mit einer zuverlässigen elektrischen Erdung  
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112  
APPENDIX A: SAFETY INFORMATION  
verbunden werden oder beides. Es ist sicherzustellen, dass die  
Erdungsverbindung vor dem Anschließen der von der RPS bereitgestellten  
Gleichstromversorgung hergestellt wird.  
VORSICHT: Jede RPS muss als nicht geerdetes SELV-Ausgangsgerät  
gemäß IEC 60950-1/UL 60950-1/EN 60950-1 zugelassen sein.  
VORSICHT: Diese Anleitungen müssen im Zusammenhang mit den  
Eigenschaften des Gleichstrom-Versorgungseingangs des Switch 5500  
gelesen werden, die in Anhang C, "Technische Daten", aufgeführt sind.  
VORSICHT: Beim Anschließen des Kabels an die RPS sind die  
Empfehlungen des Herstellers zu beachten.  
VORSICHT: Stellen Sie sicher, dass sich der Schutzschalter an der RPS  
beim Anschließen des Kabels an die RPS in der geöffneten Stellung (Aus)  
befindet.  
VORSICHT: Stellen Sie auf jeden Fall sicher, dass die positive Klemme am  
switch an die positive (gemeinsame) Klemme der RPS und die negative  
Klemme am switch an die negative (gemeinsame) Klemme der RPS  
angeschlossen wird.  
VORSICHT: Stellen Sie sicher, dass sich der Schutzschalter an der RPS  
beim Anschließen des RPS-Kabels und des Steckers des 3Com switch in  
der geöffneten Stellung (Aus) befindet.  
Información de Seguridad Importante  
ADVERTENCIA: La instalación o la extracción de la unidad sólo debe  
llevarla a cabo personal cualificado.  
ADVERTENCIA: Si instala el 5500 en una pila con unidades SuperStack II  
o SuperStack 3 que son más estrechas que el 5500, la unidad 5500 debe  
instalarse debajo de las unidades más estrechas.  
ADVERTENCIA: La unidad debe tener toma de tierra (conectado a  
tierra).  
ADVERTENCIA: Conecte la unidad a una fuente de alimentación con  
toma de tierra para garantizar el cumplimiento de las normas de  
seguridad.  
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Información de Seguridad Importante 113  
ADVERTENCIA: Conjunto de cables eléctricos:  
Debe estar homologado para el país donde se utilice:  
EE.UU. y  
Canadá  
El conjunto de cables debe estar homologado por UL y  
tener la certificación CSA.  
La especificación mínima del cable flexible es: Nº 18 AWG  
Tipo SV o SJ Tres conductores  
El conjunto de cables debe tener una capacidad de  
corriente nominal de al menos 10 A.  
El enchufe de conexión debe ser de tipo de toma de tierra  
con una configuración NEMA 5-15P (15 A, 125 V) o NEMA  
6-15P (15 A, 250 V).  
Sólo para el  
Reino Unido  
La toma de alimentación debe cumplir la norma BS1363 (3  
patillas, 13 A) e instalarse con un fusible de 5 A que  
cumpla BS1362.  
El cable de alimentación de red debe tener la marca  
<HAR> o <BASEC> y ser de tipo H03VVF3GO.75  
(mínimo).  
Sólo para  
Europa:  
La toma de alimentación debe cumplir la norma CEE 7/7  
("SCHUKO").  
El cable de alimentación de red debe tener la marca  
<HAR> o <BASEC> y ser de tipo H03VVF3GO.75  
(mínimo).  
Dinamarca  
Suiza  
La toma de alimentación debe cumplir la sección 107-2-D1  
de la norma DK2-1a o DK2-5a  
La toma de alimentación debe cumplir la norma SEV/ASE  
1011.  
ADVERTENCIA: El acoplador del equipo (el conector para la unidad y no  
la toma de la pared) debe tener una configuración que se adapte a una  
entrada del equipo EN60320/IEC320.  
ADVERTENCIA: El enchufe debe estar cerca de la unidad y ser de fácil  
acceso.  
ADVERTENCIA: Esta unidad funciona en condiciones SELV (voltaje  
extrabajo de seguridad) de conformidad con la norma IEC 60950. Las  
condiciones sólo se mantienen si el equipo al que esté conectada la  
unidad también funciona en condiciones SELV.  
ADVERTENCIA: Sólo para Francia y Perú: esta unidad no puede recibir  
corriente de fuentes IT†. Si las fuentes de suministro de corriente son de  
tipo IT, esta unidad debe recibir 230 V (2P+T) a través de un  
transformador aislador con relación 1:1, con el punto de conexión  
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114  
APPENDIX A: SAFETY INFORMATION  
secundario etiquetado como neutro conectado directamente a tierra.  
†Impédance à la terre.  
ADVERTENCIA: Sólo para el Reino Unido: si conecta un módem al  
puerto de consola del 5500, utilice sólo un módem que sea adecuado  
para la conexión con el sistema de telecomunicaciones.  
ADVERTENCIA: Puertos RJ-45. Son conectores de datos RJ-45 blindados.  
No pueden utilizarse como tomas de teléfono tradicionales estándar ni  
para conectar la unidad a una central de conmutación PBX tradicional ni  
a una red telefónica pública. Conecte sólo conectores de datos RJ-45,  
sistemas de telefonía de red local o teléfonos de red local a estas tomas.  
Pueden conectarse cables de datos blindados o sin blindaje con clavijas  
blindadas o sin blindaje a estos conectores de datos.  
ADVERTENCIA: Puertos de fibra óptica: seguridad óptica  
DISPOSITIVO LÁSER  
DE CLASE 1  
Nunca mire el láser de transmisión a través de una lente de aumento  
mientras está encendido. No mire nunca directamente al puerto de  
transmisión de fibra óptica ni a los extremos del cable de fibra óptica  
mientras estén conectados.  
ADVERTENCIA: Este dispositivo dispone de más de una entrada de  
alimentación. Desconecte todas las entradas de alimentación del  
dispositivo.  
ADVERTENCIA: La instalación del sistema de alimentación superflua  
(RPS) sólo debería llevarla a cabo personal cualificado y con la debida  
formación.  
ADVERTENCIA: Estas instrucciones deben leerse junto con las  
instrucciones de instalación y seguridad que se facilitan con el sistema  
RPS.  
ADVERTENCIA: al encender cualquier Switch 5500 desde un RPS, la  
unidad debe contar con una toma de tierra (conexión a tierra). Esto se  
puede conseguir conectando el cable de alimentación de la unidad o bien  
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Importanti Informazioni di Sicurezza 115  
conectando el terminal de tierra en la parte posterior de la unidad a una  
toma de tierra fiable, o conectando ambas. Deberá asegurarse de que la  
conexión a tierra se realiza antes de conectar el suministro de CC del RPS.  
ADVERTENCIA: Todos los RPS deben estar homologados como salidas  
SELV sin toma de tierra según IEC 60950-1/UL 60950-1/EN 60950-1.  
ADVERTENCIA: Estas instrucciones deben leerse junto con las  
características de la entrada de suministro de CC del Switch 5500 del  
Apéndice C, Especificaciones técnicas.  
ADVERTENCIA: al conectar el cable al RPS deberán seguirse las  
recomendaciones del fabricante.  
ADVERTENCIA: asegúrese de que el disyuntor del RPS se encuentra en la  
posición de abierto (desactivado) al conectar el cable al RPS.  
ADVERTENCIA: deberá asegurarse de que el terminal positivo del switch  
está conectado al terminal positivo (común) del RPS, y de que el terminal  
negativo del switch está conectado al terminal negativo (disyuntor) del  
RPS.  
ADVERTENCIA: asegúrese de que el disyuntor del RPS se encuentra en la  
posición de abierto (desactivado) al conectar el cable del RPS y el conector  
al 3Com switch.  
Importanti Informazioni di Sicurezza  
AVVERTENZA: Le operazioni di installazione e rimozione dell'unità  
devono essere eseguite esclusivamente da personale qualificato.  
AVVERTENZA: Se si installa lo 5500 in uno stack con unità SuperStack II  
o SuperStack 3 più strette del modello 5500, posizionare lo 5500 sotto  
tali unità.  
AVVERTENZA: L'unità deve disporre di messa a terra.  
AVVERTENZA: Per rispettare gli standard di sicurezza, è necessario  
collegare l'unità a una fonte di alimentazione dotata di messa a terra.  
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116  
APPENDIX A: SAFETY INFORMATION  
AVVERTENZA: Set dei cavi di alimentazione  
Deve essere approvato per il paese in cui viene utilizzato.  
Stati Uniti e  
Canada  
Il cavo deve avere l'approvazione UL e la certificazione CSA  
La specifica minima per il cavo flessibile è: N. 18 AWG Tipo  
SV o SJ 3 conduttori  
Il set di cavi deve avere una capacità nominale di almeno  
10 A.  
La spina di collegamento deve essere dotata di messa a  
terra, con configurazione NEMA 5-15P (15 A, 125 V) o  
NEMA 6-15P (15 A, 250 V).  
Solo Regno  
Unito  
La spina di alimentazione deve essere conforme BS1363 (3  
pin 13 amp) e dotata di un fusibile da 5 A conforme  
BS1362.  
Il cavo dell'alimentazione di rete deve essere  
contrassegnato dai marchi <HAR> o <BASEC> ed essere di  
tipo H03VVF3GO.75 (minimo).  
Solo Europa  
La spina di alimentazione deve essere conforme CEE 7/7  
(tipo "SCHUKO").  
Il cavo dell'alimentazione di rete deve essere  
contrassegnato dai marchi <HAR> o <BASEC> ed essere di  
tipo H03VVF3GO.75 (minimo).  
Danimarca  
Svizzera  
La spina di alimentazione deve essere conforme alla  
sezione 107-2-D1, standard DK2-1a o DK2  
La spina di alimentazione deve essere conforme SEV/ASE  
1011  
AVVERTENZA: L'accoppiatore (il connettore all'unità e non la spina a  
muro) deve avere una configurazione abbinabile a una presa  
EN60320/IEC320.  
AVVERTENZA: La presa deve trovarsi vicino all'unità ed essere facilmente  
accessibile.  
AVVERTENZA: Questa unità funziona alle condizioni SELV (Safety Extra  
Low Voltage) previste dalla norma IEC 60950. Tali condizioni sono  
mantenute solo se anche l'apparecchiatura a cui è collegata opera nelle  
stesse condizioni.  
AVVERTENZA: Solo per Francia e Perù. Questa unità non può ricevere  
alimentazione di tipo IT†. Se l'alimentazione è di tipo IT, l'unità deve  
essere alimentata a 230 V (2P+T) tramite un trasformatore di isolamento  
con rapporto 1:1, con il punto di collegamento secondario  
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Importanti Informazioni di Sicurezza 117  
contrassegnato come Neutro, collegato direttamente a terra.  
†Impédance à la terre.  
AVVERTENZA: Solo Regno Unito. Se si collega un modem alla porta  
Console dello 5500, utilizzare solo un modem idoneo per il collegamento  
con il sistema di telecomunicazioni.  
AVVERTENZA: Le porte RJ-45 sono prese dati RJ-45 schermate. Non è  
pertanto possibile utilizzarle come normali prese telefoniche né per  
collegare l'unità a un PBX (Private Branch Exchange, centralino telefonico  
privato) o a una rete telefonica pubblica. Collegare a queste porte solo  
prese dati RJ-45, sistemi di telefonia o telefoni di rete. A queste prese  
dati è possibile collegare cavi dati schermati o non schermati con prese  
dati schermate o non schermate.  
AVVERTENZA: Porte a fibre ottiche - Protezione degli occhi  
PRODOTTO LASER  
CLASSE 1  
Non guardare il láser di trasmissione attraverso uno strumento ottico di  
ingrandimento quando è acceso. Non guardare direttamente la porta TX  
a fibre ottiche e le estremità del cavo a fibre ottiche quando sono accese.  
AVVERTENZA: Il dispositivo presenta più punti di alimentazione. Per  
spegnere il dispositivo, scollegare tutti i punti di alimentazione.  
AVVERTENZA: le operazioni di installazione dell'RPS (Redundant Power  
Supply) devono essere eseguite esclusivamente da personale qualificato e  
opportunamente addestrato.  
AVVERTENZA: queste istruzioni devono essere lette insieme alle  
istruzioni di sicurezza e installazione fornite con l'RPS.  
AVVERTENZA: se si accende uno Switch 5500 da un RPS, l'unità deve  
disporre di messa a terra. Per accendere lo switch, è possibile collegare il  
cavo di alimentazione all'unità, collegare il terminale di terra situato sul  
retro dell'unità a una presa elettrica di terra sicura oppure collegarli  
entrambi. Prima di collegare l'alimentazione CC dell'RPS, è necessario  
verificare la messa a terra.  
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118  
APPENDIX A: SAFETY INFORMATION  
AVVERTENZA: tutti gli RPS devono essere approvati come dispositivi di  
uscita SELV non messi a terra in conformità con le norme IEC 60950-1/UL  
60950-1/EN 60950-1.  
AVVERTENZA: queste istruzioni devono essere lette insieme ai valori di  
ingresso dell'alimentazione CC dello Switch 5500 che vengono forniti  
nell'Appendice C, Specifiche tecniche.  
AVVERTENZA: quando si collega il cavo all'RPS, si consiglia di rispettare  
le raccomandazioni fornite dal fabbricante.  
AVVERTENZA: durante il collegamento del cavo all'RPS, verificare che il  
salvavita dell'RPS si trovi in posizione Acceso (spento).  
AVVERTENZA: è necessario verificare che il polo positivo sullo switch sia  
collegato al polo positivo (comune) dell'RPS e che il polo negativo sullo  
switch sia collegto al polo negativo (salvavita) dell'RPS.  
AVVERTENZA: prima di collegare il cavo RPS e il connettore allo switch  
3Com, verificare che il salvavita si trovi in posizione Acceso (spento).  
Ważne informacje o zabezpieczeniach  
OSTRZEŻENIE: Instalacja i demontaż urządzenia mogą być  
wykonywane tylko przez wykwalifikowany personel.  
OSTRZEŻENIE: Podczas instalacji Switch 5500 w stosie z urządzeniami  
SuperStack II lub SuperStack 3, które są węższe niż Switch 5500,  
urządzenie Switch 5500 musi być zainstalowane pod węższym urządze-  
niem.  
OSTRZEŻENIE: Urządzenie musi być uziemione lub musi być  
podłączone do uziemionego źródła zasilania w celu zapewnienia zgod-  
ności z wymogami bezpieczeństwa.  
OSTRZEŻENIE: Zestaw przewodów zasilania:  
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Wa¿ne informacje o zabezpieczeniach 119  
Niezbędna jest zgodność z przepisami kraju, w którym jest stosowany:  
Stany  
Zjednoczone i  
Kanada  
Zestaw przewodów musi posiadać zezwolenie UL oraz  
certyfikat CSA.  
Minimalna specyfikacja przewodu giętkiego: Przewód typu  
SV lub SJ 3 o średnicy 18 wg specyfikacji AWG.  
Zestaw przewodów musi posiadać pojemność prądu  
znamionowego przynajmniej 10A.  
Wtyczka musi być uziemiająca z układem typu NEMA  
5-15P (15A, 125V) lub NEMA 6-15P (15A, 250V).  
Wielka Brytania  
Wtyczka musi być zgodna z normą BS1363 (3-pinowa 13  
amperów) i musi być wyposażona w bezpiecznik 5A zgodny  
z normą BS1362.  
Przewód sieci zasilającej musi być oznaczony <HAR> lub  
<BASEC> i musi być typu H03VVF3g0.75 (minimum).  
Europa  
Wtyczka zasilająca musi być zgodna z normą CEE 7/7  
(„SCHUKO”).  
Przewód sieci zasilającej musi być oznaczony <HAR> lub  
<BASEC> i musi być typu H03VVF3g0.75 (minimum).  
Dania  
Wtyczka zasilająca musi być zgodna z sekcją 107-2-D1  
normy DK2-1a lub DK2-5a.  
Szwajcaria  
Wtyczka zasilająca musi być zgodna z normą SEV/ASE  
1011.  
OSTRZEŻENIE: Złączka urządzenia (podłączona do przełącznika, a nie  
do wtyczki ściennej) musi być odpowiednio dopasowana do normy  
EN60320/IEC320 otworu wlotowego.  
OSTRZEŻENIE: Gniazdo zasilające musi być umieszczone w pobliżu  
urządzenia i musi być łatwo dostępne.  
OSTRZEŻENIE: Urządzenie to pracuje w warunkach SELV (Safety Extra  
Low Voltage – Bezpieczne niskie napięcie) zgodnie z normą IEC 60950.  
Takie warunki są zachowane tylko, jeśli osprzęt, do którego jest  
podłączone, również pracuje w warunkach SELV.  
OSTRZEŻENIE: Sólo para Francia y Perú:  
Esta unidad no puede recibir corriente de fuentes IT†. Si las fuentes de  
suministro de corriente son de tipo IT, esta unidad debe recibir 230V  
(2P+T) a través de un transformador aislador con relación 1:1, con el pun-  
to de conexión secundario etiquetado como neutro conectado directa-  
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120  
APPENDIX A: SAFETY INFORMATION  
mente a tierra. †Impédance ŕ la terre.  
OSTRZEŻENIE: Tylko Wielka Brytania:  
Podczas podłączania modemu do portu konsoli Switch 5500 należy  
stosować tylko modem odpowiedni do podłączenia do sieci telekomuni-  
kacyjnej.  
OSTRZEŻENIE: Porty RJ-45. Są to ekranowane gniazda danych RJ-45.  
Nie mogą być używane jako tradycyjne gniazda telekomunikacyjne lub  
stosowane do podłączenia urządzenia do publicznej sieci telefonicznej  
lub centrali PBX. Do tych gniazd należy podłączać jedynie łącza danych  
RJ-45, sieciowe systemy telefoniczne lub telefony sieciowe. Zarówno  
osłonięte, jak i nieosłonięte przewody z danymi wraz z osłoniętymi lub  
nieosłoniętymi wtykami mogą być podłączone do tych gniazd.  
OSTRZEŻENIE: Porty światłowodowe – bezpieczeństwo  
LASER PRODUKT  
KLASA 1  
Nie wolno nigdy patrzeć na włączoną diodę laser transmisyjny przez  
urządzenie wzmacniające. Nie wolno nigdy patrzeć bezpośrednio na port  
włókna TX i końcówki światłowodów, jeśli są zasilane.  
OSTRZEŻENIE: To urządzenie ma kilka punktów podłączenia zasilania.  
Aby wyłączyć urządzenie, należy odłączyć wszystkie punkty zasilania.  
OSTRZEŻENIE: Instalacja zasilacza nadmiarowego (RPS) powinna być  
wykonywana przez odpowiednio przeszkolony i wykwalifikowany person-  
el.  
OSTRZEŻENIE: Te instrukcje należy przeczytać razem z instrukcjami  
dotyczącymi bezpieczeństwa i instalacji dostarczonymi z systemem zasi-  
lania nadmiarowego.  
OSTRZEŻENIE: Jeśli dowolny przełącznik Switch 5500 jest zasilany z  
zasilacza RPS, urządzenie musi być uziemione. Można to uzyskać przez  
podłączenie przewodu zasilającego do urządzenia lub przez podłączenie  
końcówki uziemienia z tyłu urządzenia do dobrego elementu uziemi-  
ającego. Należy upewnić się, że urządzenie zostało uziemione przed  
podłączeniem zasilacza prądu stałego do zasilacza RPS.  
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Wa¿ne informacje o zabezpieczeniach 121  
OSTRZEŻENIE: Wszystkie zasilacze RPS muszą mieć certyfikat nieuzi-  
emionego źródła zasilania SELV zgodny z normami IEC 60950-1/UL  
60950-1/EN 60950-1.  
OSTRZEŻENIE: Te instrukcje należy przeczytać razem z charaktery-  
styką zasilającego prądu stałego przełącznika Switch 5500 opisaną w  
Dodatku C, Specyfikacja techniczna.  
OSTRZEŻENIE: Podczas podłączania kabla do zasilacza RPS należy  
przestrzegać zaleceń producenta.  
OSTRZEŻENIE: Podczas podłączania kabla do zasilacza RPS należy  
upewnić się, że wyłącznik w zasilaczu jest w pozycji otwartej (wyłączony).  
OSTRZEŻENIE: Należy upewnić się, że końcówka dodatnia przełącznika  
jest podłączona do dodatniej (wspólnej) końcówki zasilacza RPS, a ujem-  
na końcówka przełącznika jest podłączona do ujemnej końcówki  
(wyłącznika) zasilacza RPS.  
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122  
APPENDIX A: SAFETY INFORMATION  
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PIN-OUTS  
B
Null Modem Cable  
RJ-45 to RS-232 25-pin  
Switch 5500  
PC/Terminal  
Cable connector: RJ-45 female  
Cable connector: 25-pin male/female  
only required if screen  
Screen  
TxD  
RxD  
Ground  
RTS  
Shell  
1
3
2
7
4
20  
Screen  
RxD  
3
2
5
7
8
always required  
TxD  
Ground  
RTS  
DTR  
CTS  
required for handshake  
DSR  
DCD  
DTR  
6
1
4
5
6
8
CTS  
DSR  
DCD  
PC-AT Serial Cable  
RJ-45 to 9-pin  
Switch 5500  
PC-AT Serial Port  
Cable connector: 9-pin female  
Cable connector: RJ-45 female  
only required if screen  
Screen  
DTR  
TxD  
RxD  
CTS  
Ground  
DSR  
RTS  
Shell  
Shell  
Screen  
DCD  
RxD  
TxD  
DTR  
Ground  
DSR  
RTS  
Required for handshake  
4
3
2
8
5
6
7
1
1
2
3
4
5
6
7
8
Always required  
required for handshake  
always required  
required for handshake  
DCD  
CTS  
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124  
APPENDIX B: PIN-OUTS  
Modem Cable  
RJ-45 to RS-232 25-pin  
Switch 5500  
Cable connector: RJ-45 female  
RS-232 Modem Port  
Cable connector: 25-pin male  
Screen  
TxD  
RxD  
RTS  
CTS  
DSR  
Ground  
DCD  
DTR  
Shell  
1
2
3
4
5
6
7
Screen  
TxD  
RxD  
RTS  
CTS  
DSR  
Ground  
DCD  
DTR  
3
2
7
8
6
5
1
4
8
20  
Ethernet Port RJ-45  
Pin Assignments  
10/100 and 1000BASE-T RJ-45 connections.  
Table 10 Pin assignments  
Pin Number  
10/100  
1000  
Ports configured as MDI  
1
2
3
4
5
6
7
8
Transmit Data +  
Transmit Data –  
Receive Data +  
Not assigned  
Not assigned  
Receive Data –  
Not assigned  
Not assigned  
Bidirectional Data A+  
Bidirectional Data A-  
Bidirectional Data B+  
Bidirectional Data C+  
Bidirectional Data C-  
Bidirectional Data B-  
Bidirectional Data D+  
Bidirectional Data D-  
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Ethernet Port RJ-45 Pin Assignments 125  
Table 11 Pin assignments  
Pin Number  
10/100  
1000  
Ports configured as MDIX  
1
2
3
4
5
6
7
8
Receive Data +  
Receive Data -  
Bidirectional Data B+  
Bidirectional Data B-  
Transmit Data +  
Not assigned  
Not assigned  
Transmit Data –  
Not assigned  
Not assigned  
Bidirectional Data A+  
Bidirectional Data A-  
Bidirectional Data D+  
Bidirectional Data D-  
Bidirectional Data C+  
Bidirectional Data C-  
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126  
APPENDIX B: PIN-OUTS  
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TECHNICAL SPECIFICATIONS  
C
Switch 5500G-EI PWR (24 Port)  
Switch 5500G-EI (48 Port)  
Switch 5500G-EI PWR (48 Port)  
Switch 5500G-EI SFP (24-Port)  
RPS  
Earthing Lead  
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128  
APPENDIX C: TECHNICAL SPECIFICATIONS  
Switch 5500 (28 Port)  
Physical Dimensions  
Height: 44 mm (1.7 in.) x Width: 440 mm (17.3 in.) x Depth: 274 mm (10.8 in.)  
Weight: 4.4kg (9.72 Ibs)  
Environmental Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0 ° to 40 °C (32 ° to 104 °F)  
–10 ° to +70 °C (14 ° to 158 °F)  
95% non-condensing  
EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13).  
Safety  
Agency Certifications  
EMC  
UL 60950, EN60950, CSA 22.2 No. 60950, IEC 60950  
Emissions  
CISPRR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, EN61000-3-2, EN61000-3-3  
EN 55024  
Immunity  
Power Consumption  
Heat Dissipation  
Power Supply  
AC  
80 watts maximum  
275 BTU/hour maximum  
Line Frequency  
Input Voltage  
Current Rating  
DC  
50/60Hz  
100-240 VAC  
1.0A (amps) maximum  
Input Voltage  
Current Rating  
Characteristics  
-48 - -60 VDC  
2.0A (amps) maximum  
SELV (Safety Extra Low Voltage)  
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Switch 5500 PWR (28 Port) 129  
Switch 5500 PWR (28 Port)  
Physical Dimensions  
Height: 43.6 mm (1.7 in.) x Width: 440 mm (17.3 in.) x Depth: 420 mm (16.5 in.)  
Weight: 5.8kg (12.79 Ibs)  
Environmental Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0 ° to 40 °C (32 ° to 104 °F)  
–40 ° to +70 °C (-40 ° to 158 °F)  
10-95% non-condensing  
EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13).  
Safety  
Agency Certifications  
EMC  
UL60950, EN60950, CSA 22.2 No. 60950, IEC 60950  
Emissions  
CISPR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, VCCI Class A,  
EN61000-3-2, EN61000-3-3  
Immunity  
EN 55024  
Power Consumption  
Heat Dissipation  
Power Supply  
AC  
80 watts maximum (not including PoE load)  
275 BTU/hour maximum (not including PoE load)  
Line Frequency  
Input Voltage  
Current Rating  
DC  
50/60Hz  
100-240 VAC  
7.0A (amps) maximum (at maximum PoE load)  
Input Voltage  
Current Rating  
Characteristics  
-52 - -55 VDC  
12A (amps) maximum (at maximum PoE load)  
SELV (Safety Extra Low Voltage), isolated from earth according to requirements  
of IEEE-Std 802.3af  
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130  
APPENDIX C: TECHNICAL SPECIFICATIONS  
Switch 5500 (52 Port)  
Physical Dimensions  
Height: 44 mm (1.7 in.) x Width: 440 mm (17.3 in.) x Depth: 274 mm (10.8 in.)  
Weight: 4.7kg (10.9 lbs)  
Environmental Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0 ° to 40 °C (32 ° to 104 °F)  
–10 ° to +70 °C (14 ° to 158 °F)  
95% non-condensing  
EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13).  
Safety  
Agency Certifications  
EMC  
UL60950, EN60950, CSA 22.2 No. 60950, IEC 60950  
Emissions  
CISPR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, VCCI Class A,  
EN61000-3-2, EN61000-3-3  
EN 55024  
Immunity  
Power Consumption  
Heat Dissipation  
Power Supply  
AC  
80 watts maximum  
275 BTU/hour maximum  
Line Frequency  
Input Voltage  
Current Rating  
DC  
50/60Hz  
100-240 VAC  
1.0A (amps) maximum  
Input Voltage  
Current Rating  
Characteristics  
-48 - -60 VDC  
2.0A (amps) maximum  
SELV (Safety Extra Low Voltage)  
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Switch 5500 PWR (52 Port) 131  
Switch 5500 PWR (52 Port)  
Physical Dimensions  
Height: 44 mm (1.7 in.) x Width: 440 mm (17.3 in.) x Depth: 420 mm (16.5 in.)  
Weight: 6.2kg (13.67 lbs)  
Environmental Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0° to 40 °C (32 ° to 104 °F)  
–40 ° to +70 °C (-40 ° to 158 °F)  
10-95% non-condensing  
EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13).  
Safety  
Agency Certifications  
EMC  
UL60950, EN60950, CSA 22.2 No. 60950, IEC 60950  
Emissions  
CISPR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, VCCI Class A,  
EN61000-3-2, EN61000-3-3  
Immunity  
EN 55024  
Power Consumption  
Heat Dissipation  
Power Supply  
AC  
80 watts maximum (not including PoE load)  
293.4 BTU/hour maximum (not including PoE load)  
Line Frequency  
Input Voltage  
Current Rating  
DC  
50/60Hz  
100-240 VAC  
7.0A (amps) maximum (at maximum PoE load)  
Input Voltage  
Current Rating  
Characteristics  
-52 - -55 VDC  
19.5A (amps) maximum (at maximum PoE load)  
SELV (Safety Extra Low Voltage), isolated from earth according to requirements  
of IEEE-Std 802.3af  
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132  
APPENDIX C: TECHNICAL SPECIFICATIONS  
Switch 5500 FX (28 Port)  
Physical Dimensions  
Height: 44 mm (1.7 in.) x Width: 440 mm (17.3 in.) x Depth: 260 mm (10.2 in.)  
Weight: 3.5kg (7.72 lbs)  
Environmental Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0 ° to 40 °C (32 ° to 104 °F)  
–40 ° to +70 °C (-40 ° to 158 °F)  
10-95% non-condensing  
EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13).  
Safety  
Agency Certifications  
EMC  
UL 60950, EN60950, CSA 22.2 No. 60950, IEC 60950  
Emissions  
CISPRR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, EN61000-3-2, EN61000-3-3  
EN 55024  
Immunity  
Power Consumption  
Heat Dissipation  
Power Supply  
AC  
80 watts maximum  
275 BTU/hour maximum  
Line Frequency  
Input Voltage Options  
Current Rating  
DC  
50/60Hz  
100-240 VAC  
1.0A (amps) maximum  
Input Voltage  
Current Rating  
Characteristics  
-48 - -60 VDC  
2.0A (amps) maximum  
SELV (Safety Extra Low Voltage)  
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Switch 5500G-EI (24 Port) 133  
Switch 5500G-EI (24 Port)  
Physical Dimensions  
Height: 43.6 mm (1.7 in.) x Width: 440 mm (17.32 in.) x Depth: 420 mm  
(16.54 in.). Weight: 8.4 kg  
Environmental  
Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0 ° to 40 °C (32 ° to 104 °F)  
–10 ° to +70 °C (14 ° to 158 °F)  
10–95% relative humidity, non-condensing  
EN60068 to 3Com schedule (package testing: paras 2.1, 2.2, 2.30 and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13.  
Safety  
Agency Certifications  
EMC  
UL 60950, EN60950, CSA 22.2 No. 60950, IEC 60950  
Emissions  
CISPRR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, EN61000-3-2, EN61000-3-3  
EN 55024  
Immunity  
Power Consumption  
Heat Dissipation  
Power Supply  
AC  
170 watts maximum  
580 BTU/hour maximum  
Line Frequency  
Input Voltage  
Current Rating  
DC  
50/60Hz  
100-240 VAC  
2.5A (amps) maximum  
Input Voltage  
Current Rating  
Characteristics  
-48 - -60 VDC  
4A (amps) maximum  
SELV (Safety Extra Low Voltage)  
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134  
APPENDIX C: TECHNICAL SPECIFICATIONS  
Switch 5500G-EI PWR (24 Port)  
Physical Dimensions  
Height: 43.6 mm (1.7 in.) x Width: 440 mm (17.32 in.) x Depth: 420 mm  
(16.54 in.). Weight: 8.9 kg  
Environmental  
Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0 ° to 40 °C (32 ° to 104 °F)  
–10 ° to +70 °C (14 ° to 158 °F)  
10–95% relative humidity, non-condensing  
EN60068 to 3Com schedule (package testing: paras 2.1, 2.2, 2.30 and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13.  
Safety  
Agency Certifications  
EMC  
UL 60950, EN60950, CSA 22.2 No. 60950, IEC 60950  
Emissions  
CISPRR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, EN61000-3-2, EN61000-3-3  
EN 55024  
Immunity  
Power Consumption  
Heat Dissipation  
Power Supply  
AC  
170 watts maximum (not including PoE load)  
580 BTU/hour maximum (not including PoE load)  
Line Frequency  
Input Voltage  
Current Rating  
DC  
50/60Hz  
100-240 VAC  
8.0A (amps) maximum (at maximum PoE load)  
Input Voltage  
Current Rating  
Characteristics  
-53 - -55 VDC  
12A (amps) maximum (at maximum PoE load)  
SELV (Safety Extra Low Voltage), isolated from earth according to requirements of  
IEEE-Std 802.3af  
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Switch 5500G-EI (48 Port) 135  
Switch 5500G-EI (48 Port)  
Physical Dimensions  
Height: 43.6 mm (1.7 in.) x Width: 440 mm (17.32 in.) x Depth: 420 mm  
(16.54 in.). Weight: 9.35kg  
Environmental  
Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0 ° to 40 °C (32 ° to 104 °F)  
–10 ° to +70 °C (14 ° to 158 °F)  
10–95% relative humidity, non-condensing  
EN60068 to 3Com schedule (package testing: paras 2.1, 2.2, 2.30 and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13.  
Safety  
Agency Certifications  
EMC  
UL 60950, EN60950, CSA 22.2 No. 60950, IEC 60950, IEC825-1, EN60825-1  
Emissions  
CISPRR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, VCCI Class A, AS/NZS 3548 Class A, EN61000-3-2, EN61000-3-3  
Immunity  
EN 55024  
Power Consumption  
Heat Dissipation  
Power Supply  
AC  
230 watts maximum  
785 BTU/hour maximum  
Line Frequency  
Input Voltage  
Current Rating  
DC  
50/60Hz  
100-240 VAC  
3.0A (amps) maximum  
Input Voltage  
Current Rating  
Characteristics  
-48 - -60 VDC  
5.5A (amps) maximum  
SELV (Safety Extra Low Voltage)  
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136  
APPENDIX C: TECHNICAL SPECIFICATIONS  
Switch 5500G-EI PWR (48 Port)  
Physical Dimensions  
Height: 43.6 mm (1.7 in.) x Width: 440 mm (17.32 in.) x Depth: 420 mm  
(16.54 in.). Weight: 9.85kg  
Environmental  
Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0 ° to 40 °C (32 ° to 104 °F)  
–10 ° to +70 °C (14 ° to 158 °F)  
10–95% relative humidity, non-condensing  
EN60068 to 3Com schedule (package testing: paras 2.1, 2.2, 2.30 and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13.  
Safety  
Agency Certifications  
EMC  
UL 60950, EN60950, CSA 22.2 No. 60950, IEC 60950, IEC825-1, EN60825-1  
Emissions  
CISPRR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, VCCI Class A, AS/NZS 3548 Class A, EN61000-3-2, EN61000-3-3  
EN 55024  
Immunity  
Power Consumption  
Heat Dissipation  
Power Supply  
AC  
230 watts maximum (not including PoE load)  
785 BTU/hour maximum (not including PoE load)  
Line Frequency  
Input Voltage  
Current Rating  
DC  
50/60Hz  
100-240 VDC  
8.0A (amps) maximum (at maximum PoE load)  
Input Voltage  
Current Rating  
Characteristics  
-53 - -55 VAC  
19.5A (amps) maximum (at maximum PoE load)  
SELV (Safety Extra Low Voltage), isolated from earth according to requirements of  
IEEE-Std 802.3af  
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Switch 5500G-EI SFP (24-Port) 137  
Switch 5500G-EI SFP (24-Port)  
Physical Dimensions  
Height: 43.6 mm (1.7 in.) x Width: 440 mm (17.32 in.) x Depth: 420 mm  
(16.54 in.). Weight: 8.9 kg  
Environmental  
Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0 ° to 40 °C (32 ° to 104 °F)  
–10 ° to +70 °C (14 ° to 158 °F)  
10–95% relative humidity, non-condensing  
EN60068 to 3Com schedule (package testing: paras 2.1, 2.2, 2.30 and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13.  
Safety  
Agency Certifications  
EMC  
UL 60950, EN60950, CSA 22.2 No. 60950, IEC 60950  
Emissions  
CISPRR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, EN61000-3-2, EN61000-3-3  
EN 55024  
Immunity  
Power Consumption  
Heat Dissipation  
Power Supply  
AC  
170 watts maximum  
580 BTU/hour maximum  
Line Frequency  
Input Voltage  
Current Rating  
DC  
50/60Hz  
100-240 VAC  
2.5A (amps) maximum  
Input Voltage  
Current Rating  
Characteristics  
-48 - -60 VDC  
4A (amps) maximum  
SELV (Safety Extra Low Voltage)  
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138  
APPENDIX C: TECHNICAL SPECIFICATIONS  
Standards Supported  
SNMP  
SNMP protocol (RFC 1157)  
Terminal Emulation  
Telnet (RFC 854)  
MIB-II (RFC 1213)  
Protocols Used for Administration  
UDP (RFC 768)  
Bridge MIB (RFC 1493)  
RMON MIB II (RFC 2021)  
IP (RFC 791)  
Remote Monitoring MIB (RFC  
1757)  
ICMP (RFC 792)  
TCP (RFC 793)  
MAU MIB (RFC 2239)  
MIB II Traps (RFC 1215)  
RS232 (RFC 1659)  
ARP (RFC 826)  
TFTP (RFC 783)  
DHCP (RFC 2131, RFC 2132, RFC 1534)  
BOOTP (RFC 951, RFC 1497)  
Network Login (IEEE 803.1x)  
RADIUS (RFC 2618, 2620)  
Link aggregation (IEEE 802.3ad)  
Interfaces (RFC 2233)  
Ether-like MIB (RFC 2665)  
MAU MIB (RFC 2668)  
Bridge extensions (RFC 2674)  
RPS  
Safety Requirements  
The RPS shall comply with the following safety standards:  
EN60950, UL60950, CSA22.2 60950, IEC60950  
EMC  
Emissions  
CISPR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, AS/NZS 3548 Class A, VCCI Class A,  
EN61000-3-2, EN61000-3-3  
Immunity  
EN 55024  
Output Specifications  
Must meet DC power supply specifications for each unit (as defined above).  
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Earthing Lead 139  
Earthing Lead  
Safety Requirements  
The Earthing Lead shall comply with the following safety standards:  
UL Subject 758, UL 1581 and CSA C22.2 No. 210  
UL VW-1 and CSA FT1 Vertical Flame Test  
Voltage Rating  
AWG  
600V  
12  
Insulation Thickness  
Insulation Color  
0.4mm  
Green/Yellow  
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140  
APPENDIX C: TECHNICAL SPECIFICATIONS  
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OBTAINING SUPPORT FOR YOUR  
PRODUCT  
D
Register Your  
Product  
Warranty and other service benefits start from the date of purchase, so it  
is important to register your product quickly to ensure you get full use of  
the warranty and other service benefits available to you.  
Warranty and other service benefits are enabled through product  
registration. Register your product at http://eSupport.3com.com/.  
3Com eSupport services are based on accounts that you create or have  
authorization to access. First time users must apply for a user name and  
password that provides access to a number of eSupport features  
including Product Registration, Repair Services, and Service Request. If  
you have trouble registering your product, please contact 3Com Global  
Services for assistance.  
Purchase  
Value-Added  
Services  
To enhance response times or extend warranty benefits, contact 3Com or  
your authorized 3Com reseller. Value-added services like 3Com ExpressSM  
and GuardianSM can include 24x7 telephone technical support, software  
upgrades, onsite assistance or advance hardware replacement.  
Experienced engineers are available to manage your installation with  
minimal disruption to your network. Expert assessment and  
implementation services are offered to fill resource gaps and ensure the  
success of your networking projects. More information on 3Com  
maintenance and Professional Services is available at  
http://www.3com.com/  
Contact your authorized 3Com reseller or 3Com for a complete list of the  
value-added services available in your area.  
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142  
APPENDIX D: OBTAINING SUPPORT FOR YOUR PRODUCT  
Troubleshoot  
Online  
You will find support tools posted on the 3Com web site at  
http://www.3com.com/  
3Com Knowledgebase helps you troubleshoot 3Com products. This  
query-based interactive tool is located at  
http://knowledgebase.3com.com and contains thousands of technical  
solutions written by 3Com support engineers.  
Access Software  
Downloads  
Software Updates are the bug fix / maintenance releases for the version  
of software initially purchased with the product. In order to access these  
Software Updates you must first register your product on the 3Com web  
site at http://eSupport.3com.com/  
First time users will need to apply for a user name and password. A link to  
software downloads can be found at http://eSupport.3com.com/, or  
under the Product Support heading at http://www.3com.com/  
Software Upgrades are the software releases that follow the software  
version included with your original product. In order to access upgrades  
and related documentation you must first purchase a service contract  
from 3Com or your reseller.  
Telephone Technical To enable telephone support and other service benefits, you must first  
Support and Repair  
register your product at http://eSupport.3com.com/  
Warranty and other service benefits start from the date of purchase, so it  
is important to register your product quickly to ensure you get full use of  
the warranty and other service benefits available to you.  
When you contact 3Com for assistance, please have the following  
information ready:  
Product model name, part number, and serial number  
Proof of purchase, if you have not pre-registered your product  
A list of system hardware and software, including revision level  
Diagnostic error messages  
Details about recent configuration changes, if applicable  
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Contact Us 143  
To send a product directly to 3Com for repair, you must first obtain a  
return authorization number (RMA). Products sent to 3Com, without  
authorization numbers clearly marked on the outside of the package, will  
be returned to the sender unopened, at the senders expense. If your  
product is registered and under warranty, you can obtain an RMA  
number online at http://eSupport.3com.com/. First time users will  
need to apply for a user name and password.  
Contact Us  
3Com offers telephone, e-mail and internet access to technical support  
and repair services. To access these services for your region, use the  
appropriate telephone number, URL or e-mail address from the list below.  
Telephone numbers are correct at the time of publication. Find a current  
directory of contact information posted on the 3Com web site at  
http://csoweb4.3com.com/contactus/  
Country  
Telephone Number  
Country  
Telephone Number  
Asia, Pacific Rim Telephone Technical Support and Repair  
Australia  
Hong Kong  
India  
1 800 678 515  
800 933 486  
+61 2 9424 5179 or  
000800 650 1111  
001 803 61009  
00531 616 439 or  
03 3507 5984  
Philippines  
1235 61 266 2602 or  
1800 1 888 9469  
800 810 3033  
800 6161 463  
080 333 3308  
00801 611 261  
001 800 611 2000  
P.R. of China  
Singapore  
S. Korea  
Taiwan  
Thailand  
Indonesia  
Japan  
Malaysia  
New Zealand  
Pakistan  
1800 801 777  
0800 446 398  
+61 2 9937 5083  
You can also obtain support in this region using the following e-mail: [email protected]  
Or request a repair authorization number (RMA) by fax using this number:  
+ 65 543 6348  
Europe, Middle East, and Africa Telephone Technical Support and Repair  
From anywhere in these  
regions, call:  
+44 (0)1442 435529  
From the following countries, you may use the numbers shown:  
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144  
APPENDIX D: OBTAINING SUPPORT FOR YOUR PRODUCT  
Country  
Telephone Number  
Country  
Telephone Number  
Austria  
Belgium  
01 7956 7124  
070 700 770  
7010 7289  
01080 2783  
0825 809 622  
01805 404 747  
06800 12813  
1407 3387  
1800 945 3794  
199 161346  
Luxembourg  
Netherlands  
Norway  
342 0808128  
0900 777 7737  
815 33 047  
00800 441 1357  
707 200 123  
0800 995 014  
9 021 60455  
07711 14453  
08488 50112  
0870 909 3266  
Denmark  
Finland  
France  
Germany  
Hungary  
Ireland  
Israel  
Poland  
Portugal  
South Africa  
Spain  
Sweden  
Switzerland  
U.K.  
Italy  
You can also obtain support in this region using the following URL:  
http://emea.3com.com/support/email.html  
Latin America Telephone Technical Support and Repair  
Antigua  
Argentina  
Aruba  
Bahamas  
Barbados  
Belize  
Bermuda  
Bonaire  
Brazil  
Cayman  
Chile  
Colombia  
Costa Rica  
Curacao  
Ecuador  
Dominican Republic  
1 800 988 2112  
0 810 444 3COM  
1 800 998 2112  
1 800 998 2112  
1 800 998 2112  
52 5 201 0010  
1 800 998 2112  
1 800 998 2112  
0800 13 3COM  
Guatemala  
Haiti  
Honduras  
Jamaica  
Martinique  
Mexico  
Nicaragua  
Panama  
Paraguay  
Peru  
Puerto Rico  
Salvador  
Trinidad and Tobago  
Uruguay  
Venezuela  
Virgin Islands  
AT&T +800 998 2112  
57 1 657 0888  
AT&T +800 998 2112  
1 800 998 2112  
571 657 0888  
01 800 849CARE  
AT&T +800 998 2112  
AT&T +800 998 2112  
54 11 4894 1888  
AT&T +800 998 2112  
1 800 998 2112  
AT&T +800 998 2112  
1 800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
57 1 657 0888  
1 800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
1 800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
You can also obtain support in this region using the following:  
Spanish speakers, enter the URL:  
http://lat.3com.com/lat/support/form.html  
Portuguese speakers, enter the URL:  
http://lat.3com.com/br/support/form.html  
English speakers in Latin America should send e-mail to:  
US and Canada Telephone Technical Support and Repair  
1 800 876 3266  
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3COM NETWORK MANAGEMENT  
E
3Com has a range of network management applications to address  
networks of all sizes and complexity, from small and medium businesses  
3Com Network Director  
3Com Network Access Manager  
3Com Enterprise Management Suite  
Integration Kit with HP OpenView Network Node Manager  
Details of these and other 3Com Network Management Solutions can be  
3Com Network  
Supervisor  
3Com® Network Supervisor (3NS) is an easy-to-use management  
application that graphically discovers, maps, and monitors the network  
and links. It maps devices and connections so you can easily:  
Monitor stress levels  
Set thresholds and alerts  
View network events  
Generate reports in user-defined formats  
Launch embedded device configuration tools  
3NS is configured with intelligent defaults and the ability to detect  
network misconfigurations. It can also offer optimization suggestions,  
making this application ideal for network managers with all levels of  
experience.  
To find out more about 3Com Network Supervisor and to download a  
trial version, go to: www.3com.com/3ns  
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146  
APPENDIX E: 3COM NETWORK MANAGEMENT  
3Com Network  
Director  
3Com Network Director (3ND) is a standalone application that allows you  
to carry out key management and administrative tasks on midsized  
networks. By using 3ND you can discover, map, and monitor all your  
3Com devices on the network. It simplifies tasks such as backup and  
restore for 3Com device configurations as well as firmware and agent  
upgrades. 3ND makes it easy to roll out network-wide configuration  
changes with its intelligent VLAN configuration tools and the powerful  
template based configuration tools. Detailed statistical monitoring and  
historical reporting give you visibility into how your network is  
performing.  
To find out more about how 3Com Network Director can help you  
manage your 3Com network and to download a trial version, go to:  
www.3com.com/3nd  
3Com Network  
Access Manager  
3Com Network Access Manager is installed seamlessly into Microsoft  
Active Directory and Internet Authentication Service (IAS). It simplifies the  
task of securing the network perimeter by allowing the administrator to  
easily control network access directly from the “Users and Computers”  
console in Microsoft Active Directory. With a single click, a user (or even  
an entire department) can be moved to a different VLAN, or a computer  
can be blocked from connecting to the network.  
3Com Network Access Manager leverages the advanced desktop security  
capabilities of 3Com switches and wireless access points (using IEEE  
802.1X or RADA desktop authentication) to control both user and  
computer access to the network.  
To find out more about 3Com Network Access Manager, go to:  
www.3com.com/NAM  
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3Com Enterprise Management Suite 147  
3Com Enterprise  
Management Suite  
3Com Enterprise Management Suite (EMS) delivers comprehensive  
management that is flexible and scalable enough to meet the needs of  
the largest enterprises and advanced networks.  
This solution provides particularly powerful configuration and change  
control functionalities, including the capability to:  
Customize scheduled bulk operations  
Create a detailed audit trail of all network changes  
Support multiple distributed IT users with varying access levels and  
individualized network resource control  
The client-server offering operates on Windows and UNIX (Linux and  
Solaris) systems.  
3Com EMS is available in four packages, varying in the maximum number  
of devices actively managed. These include SNMP-capable devices such as  
switches, routers, security switches, the 3Com VCX™ IP Telephony server,  
and wireless access points:  
Up to 250 devices  
Up to 1,000 devices  
Up to 5,000 devices  
An unlimited number of devices  
To find out more about 3Com Enterprise Management Suite, go to:  
www.3com.com/ems  
Integration Kit with  
HP OpenView  
Network Node  
Manager  
3Com Integration Kit for HP OpenView Network Node Manager offers  
businesses the option of managing their 3Com network directly from HP  
OpenView Network Node Manager. The kit includes Object IDs, icons,  
MIBs, and traps for 3Com devices. The package supports both Windows  
platforms and UNIX or Solaris platforms. It can be installed as a  
standalone plug-in to HP OpenView, or used with a 3Com management  
application such as 3Com Enterprise Management Suite (EMS).  
To find out more about 3Com Integration Kit for HP OpenView Network  
Node Manager, go to: www.3com.com/hpovintkit  
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148  
APPENDIX E: 3COM NETWORK MANAGEMENT  
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I
INDEX  
installing the Switch 29  
registered 85  
IP configuration 59  
L
A
LEDs 18  
access levels of default users 73  
3Com Network Director 67  
console port 67  
M
B
preparing for 60  
setting up 55  
manual setup  
browsers  
choosing 71  
console port 61  
MDI configuration 44  
C
cable 26  
pin-outs 123  
command line interface  
management 56  
console port 17  
conventions  
cross-over configuration 44  
P
passwords  
of default users 73  
RJ45 124  
pin-outs 123  
D
default  
users 73  
documentation  
related 8  
power socket 24  
powering-up a Switch 5500 43  
problem solving 81, 87  
LEDs 82  
E
earthing cable 40  
expansion module 22  
F
R
factory defaults 27  
rack mounting a Switch 5500 32  
redundant power supply (RPS) 35  
redundant power system socket 26  
related documentation 8  
H
hardware features 13  
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150  
S
W
English 104  
Web browsers  
choosing 71  
Italian 115  
choosing a browser 71  
SFP  
SNMP 72  
Distributed Fabric 75, 76  
Fully Resilient Fabric 77  
Guidelines for Interconnecting Units 78  
How to Interconnect Units 75  
Switch 5500 Support 76  
Unit Numbering 78  
socket  
specifications, system 127  
SSH 70  
stacking 26, 44  
stacking cable ports 26  
Switch  
Switch 5500  
features 13  
power socket 24  
powering-up 43  
rack mounting 32  
size 127  
weight 127  
XRN Distributed Fabric 75, 76  
system specifications 127  
T
U
upgrading software  
bootrom 95  
bootrom via FTP 100  
bootrom via TFTP 100  
bootrom via XModem 101  
file distribution 92  
FTP 93, 97  
TFTP 91, 97  
XModem 94, 98  
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REGULATORY NOTICES  
FCC STATEMENT  
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to  
part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful  
interference when the equipment is operated in a commercial environment. This equipment generates, uses  
and can radiate radio frequency energy and, if not installed and used in accordance with the instructions,  
may cause harmful interference to radio communications. Operation of this equipment in a residential area is  
likely to cause harmful interference to radio communications, in which case the user will be required to  
correct the interference at their own expense.  
INFORMATION TO THE USER  
If this equipment does cause interference to radio or television reception, which can be determined by  
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of  
the following measures:  
Reorient the receiving antenna.  
Relocate the equipment with respect to the receiver.  
Move the equipment away from the receiver.  
Plug the equipment into a different outlet so that equipment and receiver are on different branch circuits.  
If necessary, the user should consult the dealer or an experienced radio/television technician for additional  
suggestions. The user may find the following booklet prepared by the Federal Communications Commission  
helpful:  
How to Identify and Resolve Radio-TV Interference Problems  
This booklet is available from the U.S. Government Printing Office, Washington, DC 20402, Stock No.  
004-000-00345-4.  
In order to meet FCC emissions limits, this equipment must be used only with cables which comply with IEEE  
802.3.  
CSA STATEMENT  
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment  
Regulations.  
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur  
du Canada.  
CE STATEMENT (EUROPE)  
VCCI STATEMENT  
This product complies with the European Low Voltage Directive 73/23/EEC and EMC Directive 89/336/EEC as  
amended by European Directive 93/68/EEC.  
Warning: This is a class A product. In a domestic environment this product may cause radio interference in  
which case the user may be required to take adequate measures.  
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