3Com Network Router 4210G User Manual

3Com Switch 4210G Family  
Getting Started Guide  
Manual Version:  
6W100-20100203  
3Com Corporation  
350 Campus Drive, Marlborough,  
MA, USA 01752 3064  
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About This Manual  
Organization  
3Com Switch 4210G Family Getting Started Guide is organized as follows:  
Chapter  
Contents  
Briefly introduces the appearance, system description, as well as  
the features and applications of the 3Com Switch 4210G Family.  
1 Router Overview  
Describes the requirements on installation site, the safety  
recommendations before and during installation, and the required  
tools.  
2 Preparing for Installation  
3 Installing the Switch  
Covers the procedures for installing the 3Com Switch 4210G  
Family, ground wire connection, power module installation,  
interface module installation, and so on.  
Helps you get familiar with the basic knowledge of how to boot and  
configure the 3Com Switch 4210G Family, including device  
startup, power-on, and initialization of system files, and so on.  
4 Starting and Configuring the  
Switch  
Introduces how to load Boot ROM and host software for the  
3Com Switch 4210G Family.  
5
Boot ROM and Host  
Software Loading  
Introduces the problems that might occur during the installation  
and the booting of the 3Com Switch 4210G Family and the related  
solution.  
6
Maintenance  
and  
Troubleshooting  
Conventions  
The manual uses the following conventions:  
Command conventions  
Convention  
Description  
Boldface  
italic  
The keywords of a command line are in Boldface.  
Command arguments are in italic.  
[ ]  
Items (keywords or arguments) in square brackets [ ] are optional.  
Alternative items are grouped in braces and separated by vertical bars.  
One is selected.  
{ x | y | ... }  
[ x | y | ... ]  
{ x | y | ... } *  
[ x | y | ... ] *  
Optional alternative items are grouped in square brackets and  
separated by vertical bars. One or none is selected.  
Alternative items are grouped in braces and separated by vertical bars.  
A minimum of one or a maximum of all can be selected.  
Optional alternative items are grouped in square brackets and  
separated by vertical bars. Many or none can be selected.  
The argument(s) before the ampersand (&) sign can be entered 1 to n  
times.  
&<1-n>  
#
A line starting with the # sign is comments.  
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GUI conventions  
Convention  
Description  
Window names, button names, field names, and menu items are in  
Boldface. For example, the New User window appears; click OK.  
Boldface  
Multi-level menus are separated by angle brackets. For example, File >  
Create > Folder.  
>
Symbols  
Convention  
Description  
Means reader be extremely careful. Improper operation may cause  
bodily injury.  
Means reader be careful. Improper operation may cause data loss or  
damage to equipment.  
Means an action or information that needs special attention to ensure  
successful configuration or good performance.  
Means a complementary description.  
Means techniques helpful for you to make configuration with ease.  
Related Documentation  
In addition to this manual, each 3Com Switch 4210G documentation set includes the following:  
Manual Description  
3Com Switch 4210G Family Describe how to configure your 4210 Switch using the supported  
Configuration Guide protocols and CLI commands.  
3Com Switch 4210G Family Provide detailed descriptions of command line interface (CLI)  
Command Reference Guide  
commands, that you require to manage your switch.  
Obtaining Documentation  
You can access the most up-to-date 3Com product documentation on the World Wide Web at this URL:  
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Table of Contents  
i
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ii  
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1
Product Overview  
Overview  
3Com Switch 4210G Family (hereinafter referred to as the Switch 4210G ) are Layer 3 Gigabit Ethernet  
switching products developed by 3Com Corporation. (Hereinafter referred to as 3Com).  
The Switch 4210G are designed as distribution or access devices for intranets and metropolitan area  
networks (MANs). Supporting IPv4/IPv6 dual stack, the Switch 4210G provide abundant service  
features.  
The Switch 4210G include six models, and have the system specifications as shown in Table 1-1. They  
all support the 3Com-specific cluster management function, which facilitates your network management.  
And four models of the Switch 4210G also support 10 GE uplink interfaces and the Intelligent Resilient  
Framework (IRF) technology. You can connect multiple 4210G switches through 10 GE ports to form a  
logical entity, thus to establish a new intelligent network with high reliability, expandability and  
manageability.  
Table 1-1 System specifications of the Switch 4210G  
4210G 24-Port  
4210G 48-Port  
4210G PWR  
24-Port  
4210G PWR  
48-Port  
Item  
4210G NT  
24-Port  
4210G NT  
24-Port  
Physical  
dimensions  
43.6 × 440 × 300 mm  
43.6 × 440 × 420 mm  
(1.72 × 17.32 × 11.81 in.)  
(1.72 × 17.32 × 16.54 in.)  
(H × W × D)  
< 4.7 kg  
(10.36 lb)  
<6.9 kg  
(15.21 lb)  
Weight  
<4.4 kg (9.70 lb)  
<7.4 kg (16.31 lb)  
Management port  
One console port, on the front panel  
Auto-sensing  
24  
48  
10/100/1000Base-  
T Ethernet ports  
(on the front panel)  
24  
48  
Supports PoE Supports PoE  
4, each 1000 Base-X SFP port and the corresponding auto-sensing  
10/100/1000Base-T Ethernet port form a Combo port.  
1000 Base-X SFP  
ports  
: For each Combo port, either the SFP port or the corresponding  
10/100/1000Base-T Ethernet port can be used at a time. For details about the  
combo port mapping relationship, please refer to Table 1-4.  
(on the front panel)  
Switch 4210G NT 24-Port and Switch 4210G NT 48-Port do not support any  
interface modules;  
Switch 4210G 24-Port, Switch 4210G 48-Port, Switch 4210G PWR 24-Port,  
and Switch 4210G PWR 48-Port support two interface modules respectively,  
which can be:  
Interface modules  
supported  
(optional, on the  
rear panel)  
z
z
z
z
Short-haul dual-port 10GE CX4 interface module (3C17767, support IRF)  
Dual-port 10 GE XFP interface module (3C17766, support IRF)  
One-port 10 GE XFP interface module (3C17768, support IRF)  
Dual-port 10 GE SFP+ interface module (LSPM2SP2P, support IRF)  
1-1  
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4210G 24-Port  
4210G 48-Port  
4210G PWR  
24-Port  
4210G PWR  
48-Port  
Item  
4210G NT  
24-Port  
4210G NT  
24-Port  
1 AC power socket and 1 RPS power socket  
Power socket  
types and quantity  
: The two power inputs can be simultaneously used, acting as  
backup for each other. Alternatively, you can use either power input.  
Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz  
Input voltage range: 90 VAC to 264 VAC, 47 Hz to 63 Hz  
AC input  
Rated voltage range: 10.8 VDC to  
13.2 VDC  
Rated voltage range: –52 VDC to –55  
VDC  
Input  
voltage  
RPS500-A3 (+12 V/10.5 A output,  
power cable 0404A03C)  
RPS1000-A3 (–54 V/25 A output,  
power cable 0404A053)  
RPS  
input  
: Please use the external RPS power supply units recommended  
by 3Com only.  
4210G 24-Port:  
36 W  
4210G 48-Port:  
55 W  
Static power  
consumption  
55 W  
78 W  
4210G NT  
4210G NT  
24-Port: 35 W  
48-Port: 54 W  
550 W when RPS is  
not connected, with  
180 W of system  
power consumption  
and 370 W of PoE  
power  
495 W, with  
125 W of  
system power  
consumption  
and 370 W of  
PoE power  
4210G 24-Port:  
103 W  
4210G 48-Port:  
145 W  
Power  
consumption (full  
load)  
4210G NT  
24-Port: 62 W  
4210G NT  
48-Port: 110 W  
920 W when RPS is  
connected, with 180  
W of system power  
consumption and  
740 W of PoE power  
Cooling system  
Four fans for heat dissipation  
0°C to 45°C (32°F to 113°F)  
Six fans for heat dissipation  
Operating  
temperature  
Relative humidity  
(noncondensing)  
10% to 90%  
For details about the external RPS power supply units, see the RPS500-A3 User Manual and  
RPS1000-A3 User Manual.  
1-2  
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Introduction to Switch 4210G  
Switch 4210G 24-Port  
Front Panel  
Figure 1-1 Front panel of the Switch 4210G 24-Port Ethernet switch  
(1) 10/100/1000 Base-T auto-sensing Ethernet port  
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED  
(3) 1000Base-X SFP port  
(5) Console port  
(4) 1000Base-X SFP port status LED  
(6) Seven-segment LED  
(7) Port mode LED (Mode)  
(9) RPS status LED (RPS)  
(11) Interface module 2 status LED (MOD2)  
(8) System status LED (PWR)  
(10) Interface module 1 status LED (MOD1)  
(12) Port status LED mode switching button  
Rear Panel  
Figure 1-2 Rear panel of the Switch 4210G 24-Port Ethernet switch  
(1) AC power input  
(3) Grounding screw  
(2) RPS power input (shipped with a protective cover)  
(4) Interface module slot 1 (MOD1)  
(5) Interface module slot 2 (MOD2)  
The Switch 4210G 24-Port provides two interface module slots on its rear panel. Each slot is installed  
with a filler panel when the switch is shipped. You can select one or two interface modules for your  
switch as needed. See Optional Interface Modules on page 1-15 for the interface module models  
supported by the Switch 4210G, and see Connecting the RPS Power Cord on page 3-14 for the  
installation of interface modules.  
1-3  
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Switch 4210G 48-Port  
Front Panel  
Figure 1-3 Front panel of the Switch 4210G 48-Port Ethernet switch  
(1) 10/100/1000 Base-T auto-sensing Ethernet port  
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED  
(3) Console port  
(4) Seven-segment LED  
(5) Port mode LED (Mode)  
(7) RPS status LED (RPS)  
(9) Interface module 2 status LED (MOD2)  
(11) 1000Base-X SFP port  
(6) System status LED (PWR)  
(8) Interface module 1 status LED (MOD1)  
(10) Port status LED mode switching button  
(12) 1000Base-X SFP port status LED  
Rear Panel  
Figure 1-4 Rear panel of the Switch 4210G 48-Port Ethernet switch  
(1) AC power input  
(3) Grounding screw  
(2) RPS power input (shipped with a protective cover)  
(4) Interface module slot 1 (MOD1)  
(5) Interface module slot 2 (MOD2)  
The Switch 4210G 48-Port provides two interface module slots on its rear panel. Each slot is installed  
with a filler panel when the switch is shipped. You can select one or two interface modules for your  
switch as needed. See Optional Interface Modules on page 1-15 for the interface module models  
supported by the Switch 4210G, and see Connecting the RPS Power Cord on page 3-14 for the  
installation of interface modules.  
1-4  
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Switch 4210G PWR 24-Port  
Front Panel  
Figure 1-5 Front panel of the Switch 4210G PWR 24-Port Ethernet switch  
(1) 10/100/1000 Base-T auto-sensing Ethernet port  
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED  
(3) 1000 Base-X SFP port  
(5) Console port  
(4) 1000Base-X SFP port status LED  
(6) Seven-segment LED  
(7) Port mode LED (Mode)  
(9) RPS status LED (RPS)  
(11) Interface module 2 status LED (MOD2)  
(8) System status LED (PWR)  
(10) Interface module 1 status LED (MOD1)  
(12) Port status LED mode switching button  
Rear Panel  
Figure 1-6 Rear panel of the Switch 4210G PWR 24-Port Ethernet switch  
(1) RPS power input  
(2) AC power input  
(3) Grounding screw  
(4) Interface module slot 1 (MOD1)  
(5) Interface module slot 2 (MOD2)  
The Switch 4210G PWR 24-Port provides two interface module slots on its rear panel. Each slot is  
installed with a filler panel when the switch is shipped. You can select one or two interface modules for  
your switch as needed. See Optional Interface Modules on page 1-15 for the interface module models  
supported by the Switch 4210G, and see Connecting the RPS Power Cord on page 3-14 for the  
installation of interface modules.  
1-5  
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Switch 4210G PWR 48-Port  
Front Panel  
Figure 1-7 Front panel of the Switch 4210G PWR 48-Port Ethernet switch  
(1) 10/100/1000 Base-T auto-sensing Ethernet port  
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED  
(3) Console port  
(4) Seven-segment LED  
(5) Port mode LED (Mode)  
(7) RPS status LED (RPS)  
(9) Interface module 2 status LED (MOD2)  
(11) 1000Base-X SFP port  
(6) System status LED (PWR)  
(8) Interface module 1 status LED (MOD1)  
(10) Port status LED mode switching button  
(12) 1000Base-X SFP port status LED  
Rear Panel  
Figure 1-8 Rear panel of the Switch 4210G PWR 48-Port Ethernet switch  
(1) RPS power input  
(2) AC power input  
(3) Grounding screw  
(4) Interface module slot 1 (MOD1)  
(5) Interface module slot 2 (MOD2)  
The Switch 4210G PWR 48-Port provides two interface module slots on its rear panel. Each slot is  
installed with a filler panel when the switch is shipped. You can select one or two interface modules for  
your switch as needed. See Optional Interface Modules on page 1-15 for the interface module models  
supported by the Switch 4210G, and see Connecting the RPS Power Cord on page 3-14 for the  
installation of interface modules.  
1-6  
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Switch 4210G NT 24-Port  
Front Panel  
Figure 1-9 Front panel of the Switch 4210G NT 24-Port Ethernet switch  
(1) 10/100/1000 Base-T auto-sensing Ethernet port  
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED  
(3) 1000 Base-X SFP port  
(5) Console port  
(4) 1000Base-X SFP port status LED  
(6) Seven-segment LED  
(7) Port mode LED (Mode)  
(9) RPS status LED (RPS)  
(8) System status LED (PWR)  
(10) Port status LED mode switching button  
Rear Panel  
Figure 1-10 Rear panel of the Switch 4210G NT 24-Port Ethernet switch  
(1) AC power input  
(3) Grounding screw  
(2) RPS power input (shipped with a protective cover)  
(4) “DO NOT REMOVE” label  
The Switch 4210G NT 24-Port does not support any interface modules.  
1-7  
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Switch 4210G NT 48-Port  
Front Panel  
Figure 1-11 Front panel of the Switch 4210G NT 48-Port Ethernet switch  
(1) 10/100/1000 Base-T auto-sensing Ethernet port  
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED  
(3) Console port  
(4) Seven-segment LED  
(5) Port mode LED (Mode)  
(7) RPS status LED (RPS)  
(9) 1000Base-X SFP port  
(6) System status LED (PWR)  
(8) Port status LED mode switching button  
(10) 1000Base-X SFP port status LED  
Rear Panel  
Figure 1-12 Rear panel of the Switch 4210G NT 48-Port Ethernet switch  
(1) AC power input  
(3) Grounding screw  
(2) RPS power input (shipped with a protective cover)  
(4) “DO NOT REMOVE” label  
The Switch 4210G NT 48-Port does not support any interface modules.  
Ports  
Console Port  
Each Switch 4210G provides one console port on the front panel. Table 1-2 describes the console port  
specifications.  
1-8  
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Table 1-2 Console port specifications  
Item  
Specification  
Connector type  
RJ-45  
Compliant standard  
Transmission baud rate  
EIA/TIA-232  
9600 bps to 115200 bps (defaulting to 19200 bps)  
z
z
It can be connected to an ASCII terminal.  
It can be connected to a serial port of a local or remote (through a  
pair of modems) PC running terminal emulation program.  
Service  
10/100/1000Base-T Ethernet Port  
Each Switch 4210G provides 10/100/1000Base-T Ethernet ports on its front panel. Table 1-3 describes  
the specifications of the 10/100/1000Base-T Ethernet ports.  
Table 1-3 10/100/1000Base-T Ethernet port specifications  
Item  
Specification  
Connector type  
RJ-45  
z
z
z
z
10 Mbps, full duplex  
100 Mbps, full duplex  
1000 Mbps, full duplex  
MDI/MDI-X, auto-sensing  
Interface standard  
Max transmission distance 100 m (328.08 ft.)  
Transmission medium  
Standard  
Category-5 unshielded twisted pair cable  
IEEE 802.3i, 802.3u, 802.3ab  
1000Base-X SFP Port  
The SFP ports on the front panel of Switch 4210G supports fiber Gigabit Ethernet long-wave (LX),  
long-haul (LH70) and copper (T) transceivers in any combination..  
All SFP transceivers are hot swappable and optional. Therefore, networking is more flexible.  
z
z
You are recommended to use SFP transceivers of 3Com on the Switch 4210G.  
The types of SFP transceivers may update with time. For information about transceivers, contact  
3Com technical support or marketing staff.  
1-9  
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Combo Port  
One SFP port and the corresponding 10/100/1000Base-T Ethernet port form a Combo port. For each  
Combo port, either the SFP port or the corresponding 10/100/1000Base-T Ethernet port can be used at  
a time. For details about the combo port mapping relationship, please refer to Table 1-4.  
Table 1-4 Combo port mapping relationship  
Model  
SFP port  
10/100/1000Base-T Ethernet port  
GigabitEthernet1/0/22  
GigabitEthernet1/0/24  
GigabitEthernet1/0/21  
GigabitEthernet1/0/23  
GigabitEthernet1/0/46  
GigabitEthernet1/0/48  
GigabitEthernet1/0/45  
GigabitEthernet1/0/47  
GigabitEthernet1/0/25  
GigabitEthernet1/0/26  
GigabitEthernet1/0/27  
GigabitEthernet1/0/28  
GigabitEthernet1/0/49  
GigabitEthernet1/0/50  
GigabitEthernet1/0/51  
GigabitEthernet1/0/52  
Switch 4210G 24-Port  
Switch 4210G NT 24-Port  
Switch 4210G PWR 24-Port  
Switch 4210G 48-Port  
Switch 4210G NT 48-Port  
Switch 4210G PWR 48-Port  
The SFP port and its corresponding 10/100/1000Base-T autosensing Ethernet port cannot be used  
together at the same time. For details, refer to the Ethernet Port Configuration part in the Access  
Volume of the 3Com Switch 4210G Family Configuration Guide.  
LEDs  
Table 1-5 LEDs  
LED  
Device support  
All series  
All series  
All series  
All series  
All series  
All series  
Switch 4210G 24-Port, Switch 4210G 48-Port, Switch  
4210G PWR 24-Port, and Switch 4210G PWR 48-Port  
1-10  
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System Status LED  
The system status LED helps you determine the working status of the switch. Refer to Table 1-6 for the  
details.  
Table 1-6 System status LED description  
LED  
Status  
Steady green  
Description  
The switch is started normally.  
The system is performing power-on self test (POST).  
POST failed.  
Flashing green (1 Hz)  
Steady red  
PWR  
Flashing yellow (1 Hz)  
Off  
POST on some ports failed.  
The switch is powered off.  
RPS Status LED  
The RPS status LED helps you determine the working status of the RPS of the switch. Refer to Table  
1-7 for details.  
Table 1-7 RPS status LED (for Switch 4210G 24-Port, Switch 4210G 48-Port, Switch 4210G NT  
24-Port, and Switch 4210G NT 48-Port)  
LED  
Status  
Description  
The AC input is normal, and the RPS is in the position or  
works normally.  
Steady green  
RPS  
The RPS input is normal, but the AC input fails or is not  
connected.  
Steady yellow  
Off  
RPS is not connected.  
Table 1-8 RPS status LED (for Switch 4210G PWR 24-Port and Switch 4210G PWR 48-Port)  
LED  
Status  
Description  
Steady green  
The RPS input is normal, and the AC input works normally.  
The RPS input is normal, but the AC input fails or is not  
connected.  
RPS  
Steady yellow  
Off  
The RPS input is abnormal.  
Port Mode LED  
The port mode LED on the Switch 4210G can display the working status of a port for you to obtain more  
device information. You can use the port mode switching button to change the status of the port mode  
LED.  
1-11  
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Table 1-9 Port mode LED description  
LED Status  
Description  
Indicates port rate.  
Steady green  
Flashing green (1 Hz) (supported by  
PoE switches only)  
Mode  
Indicates port PoE power supply.  
Indicates port duplex mode.  
Steady yellow  
Seven-Segment LED  
The seven-segment LED and the system status LED together indicate the operating status of the  
device. For details, refer to Table 1-10.  
Table 1-10 Seven-segment LED description (1)  
Status  
LED  
Description  
System status  
LED (PWR)  
Seven-segment LED  
The LED displays the specific numbers  
one by one.  
POST running. The LED  
displays the POST test ID.  
Unit  
Flashing green  
Flashing red  
The LED flashes the specific numbers.  
POST failed. The LED flashes  
the POST test ID of the failed  
test.  
A bar rotates clockwise around the  
LED.  
Flashing green  
Steady red  
Software loading  
The LED flashes F.  
Fan failure  
The LED flashes t.  
Steady red  
Over-temperature alarm  
The LED displays C.  
The current switch is the  
Steady green  
command switch in the cluster.  
The LED displays S.  
The LED displays c.  
The current switch is a member  
switch in the cluster.  
The current switch is a  
candidate switch in the cluster.  
1-12  
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Status  
LED  
Description  
System status  
LED (PWR)  
Seven-segment LED  
The member ID of the current  
switch in the IRF system.  
The LED displays the specific numbers.  
Switch 4210G NT 24-port and  
Switch 4210G NT 48-port do  
not support IRF.  
The seven-segment LED, the system status LED, and the port mode LED on the Switch 4210G PWR  
24-port or Switch 4210G PWR 48-port that supports PoE can display the PoE power consumption  
percentage of the switch. For details, refer to Table 1-11.  
Table 1-11 Seven-segment LED description (2)  
LED status  
LED  
Description  
Port mode  
LED  
System  
status LED  
Seven-segment LED  
For example, when the LED  
The LED displays the  
specific signs.  
Flashing  
green (1 Hz)  
(PoE mode)  
displays the  
sign, it indicates  
Steady  
green  
Unit  
81 - 100%  
61 - 80%  
41 - 60%  
21 - 40%  
that the PoE power currently  
provided by the switch occupies 0  
to 20% of the total PoE power that  
the switch can provide.  
0
- 20%  
10/100/1000Base-T Auto-Sensing Ethernet Port Status LED  
The port mode LED and the 10/100/1000Base-T auto-sensing Ethernet port status LED together  
indicate the port operation status. Refer to Table 1-12 for details.  
Table 1-12 10/100/1000Base-T auto-sensing Ethernet port LEDs description  
Status  
Description  
Port mode Ethernet port status  
LED  
LED  
The port operates at a rate of 1000 Mbps; the LED is fast  
flashing when data is being sent and/or received on the port.  
Steady green  
Steady  
green (rate  
mode)  
The port operates at a rate of 10/100 Mbps; the LED is fast  
flashing when data is being sent and/or received on the port.  
Steady yellow  
Flashing yellow (3 Hz) POST failed on the port.  
Off  
The port is not up.  
1-13  
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Status  
Description  
Port mode Ethernet port status  
LED  
LED  
Steady green  
PoE power supply is normal.  
Power consumption of the device connected to the port  
exceeds the upper limit of the power supply consumption of  
the port, or the available power of the switch is not enough  
for power supply of the port.  
Flashing  
green (1  
Hz) (PoE  
mode,  
supported  
by PoE  
switches  
only)  
Flashing green (1 Hz)  
Steady yellow  
PoE failure, and power supply failed.  
The devices attached to the port are not powered devices  
(PDs), so the port does not supply power.  
Flashing yellow (3 Hz) POST failed on the port.  
Off  
The port does not provide PoE power.  
The port operates in full-duplex mode; the LED is fast  
flashing when data is being sent and/or received on the port.  
Steady green  
Steady  
yellow  
(duplex  
mode)  
The port operates in half-duplex mode; the LED is fast  
flashing when data is being sent and/or received on the port.  
Steady yellow  
Flashing yellow (3 Hz) POST failed on the port.  
Off The port is not up.  
1000Base-X SFP Port Status LED  
The port mode LED and the SFP port status LED together indicate the SFP port operation status. Refer  
to Table 1-13 for details.  
Table 1-13 SFP port status LEDs description  
Status  
Description  
Port mode  
LED  
Ethernet port  
status LED  
The port operates at a rate of 1000 Mbps; the LED is fast  
flashing when data is being sent and/or received on the port.  
Steady green  
Steady green  
(rate mode) or  
flashing green  
(1 Hz, PoE  
mode)  
Flashing yellow  
(3 Hz)  
POST failed on the port.  
The port is not up.  
Off  
The port operates in full-duplex mode; the LED is fast flashing  
when data is being sent and/or received on the port.  
Steady green  
Steady yellow  
(duplex mode)  
Flashing yellow  
(3 Hz)  
POST failed on the port.  
The port is not up.  
Off  
1-14  
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Interface Module Status LED  
Table 1-14 Interface module status LED description  
Mark  
Status  
Green  
Description  
The interface module is in the slot and operates normally.  
MOD1  
MOD2  
The inserted interface module type is incorrect or the interface  
module fails.  
Flashing yellow  
Off  
No interface module is installed.  
Optional Interface Modules  
The Switch 4210G (excluding Switch 4210G NT 24-Port and Switch 4210G NT 48-Port) provide two  
interface module slots on the rear panel. You can select the interface modules in Table 1-15 as needed.  
The Switch 4210G support IRF, requiring physical connections between devices. The 10 GE ports of  
the supported interface modules support IRF, allowing you to connect the switches through these 10 GE  
ports for IRF implementation.  
Table 1-15 Description of the supported interface modules  
Interface quantity  
Model  
Description  
Remarks  
and type  
Suitable for short-distance  
connections using CX4 power  
cables, and support IRF  
2 × 10 Gbps electrical  
ports  
3C17767  
2 × 10 Gbps XFP  
optical ports  
3C17766  
3C17768  
Using XFP optical transceivers  
and fibers for long-distance  
connections, and support IRF  
1 × 10 Gbps XFP  
optical port  
Using SFP+ power cables for  
short-distance connections, and  
support IRF  
Dual-Port 10 GE SFP+ 2 × 10 Gbps SFP+  
Interface Module optical ports  
LSPM2SP2P  
Using SFP+ optical transceivers  
and fibers for long-distance  
connections, and support IRF  
Short-haul Dual-Port 10 GE CX4 Interface Module  
Figure 1-13 Short-haul dual-port 10 GE CX4 interface module  
1-15  
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Figure 1-14 Front panel of short-haul dual-port 10 GE CX4 interface module  
A short-haul dual-port 10 GE CX4 interface module provides two 10 Gbps electrical ports and supports  
CX4 electrical and protocol standards. Only 3Com’s CX4 power cables can be used for connecting the  
CX4 ports. ACX4 cable is hot swappable and its maximum transmission distance is 3 m (9.84 ft.), which  
is suitable for short-distance connections only.  
Table 1-16 CX4 cables supported by the short-haul dual-port 10 GE CX4 interface module  
CX4 Cable  
Connector type  
Length  
0.5 m (19.69 in.)  
3C17775  
3C17776  
3C17777  
4X Infiniband  
1 m (39.37 in.)  
3 m (118.11 in.)  
Figure 1-15 CX4 cable  
Dual-Port 10 GE XFP Interface Module  
Figure 1-16 Dual-port 10 GE XFP interface module  
Figure 1-17 Front panel of dual-port 10 GE XFP interface module  
1-16  
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Adual-port 10 GE XFP interface module provides two 10 Gbps XFP optical ports. You can insert an XFP  
transceiver into the port to connect it to another XFP port through an optical fiber. You can select the  
following XFP transceivers in Table 1-17 as required.  
Table 1-17 XFP transceivers supported by 10 GE XFP interface module  
Max  
transmission  
distance  
Central  
wavelength  
Transceiver  
Connector  
Fiber  
50/125 µm multimode  
optical fiber  
300 m (984.25 ft.)  
33 m (108.27 ft.)  
10 km (6.21 mi.)  
40 km (24.85 mi.)  
XFP-SX-MM850  
XFP-LX-SM1310  
850 nm  
62.5/125 µm  
multimode optical fiber  
LC  
9/125 µm single mode  
optical fiber  
1310 nm  
9/125 µm single mode  
optical fiber  
XFP-LH40-SM1550-F1 1550 nm  
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You are recommended to use XFP transceivers of 3Com on the Switch 4210G.  
The types of XFP transceivers may vary over time. Consult 3Com marketing personnel or technical  
support personnel to obtain the latest information about XFP transceivers.  
One-port 10 GE XFP Interface Module  
Figure 1-18 One-port 10 GE XFP interface module  
Figure 1-19 Front panel of one-port 10 GE XFP interface module  
This module provides one 10 Gbps XFP optical interface. You can select the following XFP transceivers  
as required. A one-port 10 GE XFP interface module provides one 10 Gbps XFP optical port. You can  
1-17  
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insert an XFP transceiver into the port to connect it to another XFP port through an optical fiber. You can  
select the XFP transceivers list in Table 1-17 as required.  
Dual-Port 10 GE SFP+ Interface Module  
Figure 1-20 Dual-port 10 GE SFP+ interface module  
Figure 1-21 Front panel of dual-port 10 GE SFP+ interface module  
A dual-port 10 GE SFP+ interface module provides two 10 Gbps SFP+ ports. You can insert an SFP+  
transceiver into the port to connect it to another SFP+ port through an optical fiber, or an SFP+ cable  
provided by H3C. For details about the supported SFP+ transceivers and SFP+ cables, refer to Table  
1-18.  
Table 1-18 SFP+ transceivers and SFP+ cables supported by dual-port 10 GE SFP+ interface module  
Central  
waveleng Connector  
th  
Max  
transmission  
distance  
Transceiver Transceiver/  
Fiber  
/Cable type  
Cable  
SFP-XG-SX-  
MM850-A  
50/125 µm multimode 300 m (984.25  
850 nm  
optical fiber  
ft.)  
10 GE SFP+  
transceiver  
SFP-XG-LX2  
20-MM1310  
62.5/125 µm  
multimode optical fiber ft.)  
220 m (721.78  
LC  
1310 nm  
SFP-XG-LX-  
SM1310  
9/125 µm single mode  
10 km (6.21 mi)  
optical fiber  
SFP+ cable  
LSWM1STK  
LSWM2STK  
LSWM3STK  
LSWM4STK  
0.65 m (2.13 ft.)  
1.2 m (3.94 ft.)  
3 m (9.84 ft.)  
Short-haul  
10 GE SFP+  
cable  
10 m (32.81 ft.)  
1-18  
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Figure 1-22 SFP+ cable  
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You are recommended to use SFP+ transceivers and SFP+ cables of H3C on the switch 4210G.  
The types of SFP+ transceivers and SFP+ cables may update with time. For information about  
transceivers, contact 3Com technical support or marketing staff.  
Description of LEDs of Interface Modules  
There is a LED for each port on the interface module panel. Table 1-19 describes the LEDs.  
Table 1-19 Description of LEDs on interface modules  
LED  
Mark  
Status  
Description  
The port is normally connected.  
The LED blinks quickly when the  
port is sending or receiving data.  
This LED is  
On  
Off  
Port LED of an  
interface module  
not affected  
by the mode  
button.  
The port is not up.  
For details about the port mode switching button, see Port Mode LED.  
1-19  
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2
Preparing for Installation  
Safety Precautions  
Before you install or remove any components from the Switch or carry out any maintenance procedures,  
you must read the 3Com Switch Family Safety and Regulatory Information document enclosed with  
your switch.  
To avoid damage to human body and devices, please read the following safety recommendations  
carefully before installing the Switch 4210G. The recommendations do not cover every possible  
hazardous condition.  
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Before cleaning the switch, unplug the power plug of the switch first. Do not clean the switch with  
wet cloth or liquid.  
Do not place the switch near water or in a damp environment. Prevent water or moisture from  
entering the switch chassis.  
Do not place the switch on an unstable case or desk. The switch might be damaged severely in  
case of a fall.  
Ensure proper ventilation of the equipment room and keep the ventilation vents of the switch free of  
obstruction.  
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Make sure that the operating voltage is the same as the voltage labeled on the switch.  
Do not open the chassis while the switch is operating or when electrical hazards are present to  
avoid electrical shocks.  
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When replacing interface modules, wear ESD-preventive gloves to avoid damaging the cards.  
Installation Site  
The Switch 4210G must be used indoors. You can mount your switch in a rack or on a workbench, but  
make sure:  
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Adequate clearance is reserved at the air inlet/exhaust vents for ventilation.  
The rack or workbench has a good ventilation system.  
The rack is sturdy enough to support the device and its accessories.  
The rack or workbench is well earthed.  
To ensure normal operation and long service life of your switch, install it in an environment that meets  
the requirements described in the following subsections.  
2-1  
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Temperature/Humidity  
You must maintain a proper temperature and humidity in the equipment room. Long-term high humidity  
may lead to bad insulation, electricity leakage, mechanical property changes, and metal corrosion.  
However, if the relative humidity is two low, captive screws may become loose as the result of  
contraction of insulation washers and static electricity may be produced in a dry environment to  
jeopardize the circuits on the device. High temperature is the most undesirable condition, because it  
accelerates aging of insulation materials and can thus significantly lower reliability and service life of  
your switch.  
For the temperature and humidity requirements of different models, refer to Table 1-1.  
Cleanness  
Dust is a hazard to the operating safety of your device. The dust accumulated on the chassis can be  
adsorbed by static electricity and result in poor contact of metal connectors or metal contact points.  
Especially when the indoor relative humidity is low, electrostatic adsorption is more likely to happen.  
This can not only shorten the service life of your device but also cause communications failures. The  
following table lists the dust concentration limit.  
Table 2-1 Dust concentration limit in the equipment room  
Substance  
Unit  
Particles/m³  
Note: The dust particle size 5 μm.  
Concentration limit  
3 x 104 (no visible dust on the tabletop  
within three days)  
Dust  
Besides dust, there are rigorous limits on the content of harmful substances in the air that can  
accelerate the corrosion and aging of metals, such as chloride, acid, and sulfide in the equipment room,  
and the equipment room must be protected against ingression of harmful gases such as SO2, H2S, NH3,  
and Cl2. For specific requirements, see the following table.  
Table 2-2 Harmful gas limits in the equipment room  
Gas  
Maximum concentration (mg/m3)  
SO2  
H2S  
NH3  
Cl2  
0.2  
0.006  
0.05  
0.01  
Electromagnetic Susceptibility  
The operation of your switch can be affected by external interferences, such as conducted emission by  
capacitance coupling, inductance coupling, electromagnetic wave radiation, and common impedance  
(including the grounding system) coupling, and leads (power cords, signaling cables and output wires).  
To eliminate the interferences, pay attention to the following:  
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As the AC power system is a TN system, use a single-phase three-wire power socket with  
Protection Earth (PE) to effectively filter interference from the power grid.  
2-2  
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Keep the device far from radio transmitting stations, radar stations, and high-frequency devices.  
Use electromagnetic shielding when necessary, for example, use shielded interface cables.  
Route interface cables only indoors to prevent signal ports from getting damaged by overvoltage or  
overcurrent caused by lightning strikes.  
Laser Safety  
The Switch 4210G are Class 1 laser devices.  
When the optical ports on the Switch 4210G are operating, do not stare into the optical ports because  
the laser light emitted by the optical fiber may hurt your retina.  
Staring into the laser beam produced by the fiber may hurt your eyes.  
Installation Tools  
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Flathead screwdriver  
Phillips screwdriver  
ESD-preventive wrist strap  
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The installation tools are not shipped with the Switch 4210G.  
2-3  
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3
Installing the Switch  
When you ask your sales agent to maintain the switch, you must ensure that the  
dismantlement-preventive seal on a mounting screw of the 3Com switch chassis is intact. If you want to  
open the chassis, you should contact the agent for permission. Otherwise, you will bear any  
consequence resulted from your actions without permission.  
Installation Flow of the Switch  
Figure 3-1 Hardware installation flow of the switch  
Start  
Install the switch to the  
specified position  
Connect the ground wire  
Yes  
Hot swappable power  
module needed?  
Select and Install the  
No  
power module  
Connect the power cord  
Verify the Installation  
Power on the switch  
Troubleshoot  
No  
Power off the switch  
Operates normally?  
Yes  
No  
Install Interface cards?  
Yes  
Install the Interface card  
No  
Troubleshoot  
Operates normally?  
Yes  
Install the transceivers and  
cables  
End  
3-1  
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The Switch 4210G (excluding Switch 4210G NT 24-Port and Switch 4210G NT 48-Port) support IRF.  
For details about implementation of the IRF system and installation procedures, refer to Installation  
Installing the Switch into a 19-Inch Rack Using Mounting Brackets  
The installation methods of a switch depend on the depth and width of the switch. For the specific  
installation methods, see Table 3-1.  
Table 3-1 Installation methods for the Switch 4210G  
Use front  
mounting  
brackets  
Method  
Use front mounting  
brackets and a tray  
Use front and rear  
mounting brackets  
Model  
Switch 4210G 24-Port  
Switch 4210G 48-Port  
Switch 4210G NT 24-Port  
Switch 4210G NT 48-Port  
Switch 4210G PWR 24-Port  
Switch 4210G PWR 48-Port  
When the depth of a switch is greater than 300 mm (11.81 in.), the front mounting brackets only secure  
the switch rather than bear its weight.  
Introduction to Mounting Bracket  
Figure 3-2 Appearance of a standard front mounting bracket  
(1)  
(2)  
(1) Screw hole used to fix the mounting bracket to the cabinet (Use one M6 screw)  
(2) Screw hole used to fix the switch to the mounting bracket  
3-2  
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Figure 3-3 Appearance of a rear mounting bracket  
(1) Screw hole used to fix the mounting bracket to the cabinet (Use one M6 screw)  
For the selection of front and rear mounting brackets, see Table 3-2.  
Table 3-2 Selection of mounting bracket for Switch 4210G  
Configuration  
type of rear  
mounting  
Configuration  
type of front  
mounting bracket  
Physical dimensions  
Model  
(H × W × D)  
bracket  
Switch 4210G 24-Port  
Switch 4210G 48-Port  
Switch 4210G NT 24-Port  
Switch 4210G NT 48-Port  
43.6 × 440 × 300 mm  
(1.72 × 17.32 × 11.81 in.)  
Standard  
Standard  
Switch 4210G PWR 24-Port  
Switch 4210G PWR 48-Port  
43.6 × 440 × 420 mm  
(1.72 × 17.32 × 16.54 in.)  
Standard  
Use Front Mounting Brackets to Install a Switch  
Only the Switch 4210G 24-Port, Switch 4210G 48-Port, Switch 4210G NT 24-Port, and Switch 4210G  
NT 48-Port support installation using front mounting brackets.  
Follow these steps to mount a switch into a 19-inch standard cabinet:  
Step1 Wear an ESD-preventive wrist strap and ensure a good skin contact and grounding.  
Step2 Check the grounding and stability of the cabinet.  
Step3 Take out the screws which are packed together with the front mounting brackets, and fix one end of  
mounting brackets to the switch, as shown in Figure 3-4.  
3-3  
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Figure 3-4 Fix front mounting brackets (1)  
(1) Front panel of the switch  
Step4 Place the switch horizontally in a proper position, and fix the other end of mounting brackets to the front  
brackets with screws and captive nuts, as shown in Figure 3-5.  
Figure 3-5 Fix front mounting brackets (2)  
(1)  
(1)  
(2)  
(3)  
(1) Front square-holed post  
(3) Front mounting bracket  
(2) Front panel  
Use Front Mounting Brackets and a Tray to Install a Switch  
All models of the Switch 4210G support installation using front mounting brackets together with a tray.  
Follow these steps to install a switch into a 19-inch standard cabinet:  
Step1 Wear an ESD-preventive wrist strap and ensure a good skin contact and grounding.  
Step2 Check the grounding and stability of the cabinet.  
Step3 Fix the delivered tray horizontally in a proper position.  
Step4 Take out the screws which are packed together with the front mounting brackets, and fix one end of  
mounting brackets to the switch, as shown in Figure 3-4.  
3-4  
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Step5 Place the switch on the tray horizontally, slide the tray into the cabinet, and fix the other end of mounting  
brackets to the front brackets with crews and captive nuts, as shown in Figure 3-5.  
Use Front and Rear Mounting Brackets to Install a Switch  
Only the Switch 4210G PWR 24-Port and Switch 4210G PWR 48-Port support installation using front  
mounting brackets together with rear mounting brackets.  
Follow these steps to install a switch into a 19-inch standard cabinet:  
Step1 Wear an ESD-preventive wrist strap and ensure a good skin contact and grounding.  
Step2 Check the grounding and stability of the cabinet.  
Step3 Take out the screws which are packed together with the front mounting brackets, and fix one end of  
mounting brackets to the switch, as shown in Figure 3-4.  
Step4 Take out the load-bearing screws (packed together with the rear mounting brackets) and place them in  
a proper position on the sides of the switch, as shown in Figure 3-6.  
Figure 3-6 Fix front mounting brackets and load-bearing screws  
(1) Load-bearing screw  
(3) Front panel  
(2) Optional positions for Load-bearing screw  
(4) Front mounting bracket  
(5) Screw used to fix front mounting brackets to the switch  
There are three positions to mount a load-bearing screw on both sides of a switch. You should select a  
proper position according to the actual requirements. The rear mounting brackets tightly contacted with  
the load-bearing screws can support the switch.  
Step5 Select a position to install the switch and fix the rear mounting brackets to the rear posts with screws  
and captive nuts, as shown in Figure 3-7.  
3-5  
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Figure 3-7 Fix rear mounting brackets  
(1) Rear square-holed post  
(2) Rear mounting bracket  
Step6 Hold the bottom of the switch with one hand and the front part of the switch with the other hand, and  
push the switch into the cabinet gently, as shown in Figure 3-8.  
Figure 3-8 Fix front and rear mounting brackets  
(1)  
(1)  
(3)  
(2)  
(7)  
(4)  
(5)  
(6)  
(1) Front square-holed post  
(3) Rear panel  
(2) Load-bearing screw: Used to bear the weight  
(4) Rear square-holed post  
(5) Rear mounting bracket  
(7) Front mounting bracket  
(6) Screw used to fix rear mounting brackets to rear posts  
After the switch is pushed into the cabinet, ensure that the upper edge of rear mounting brackets is  
tightly contacted with the load-bearing screw, as shown in Figure 3-9.  
3-6  
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Figure 3-9 Effect diagram of front and rear mounting bracket installation (1)  
(1)  
(2)  
(3)  
(4)  
(1) Rear panel  
(3) Load-bearing screw  
(2) Rear square-holed post  
(4) Rear mounting bracket  
Step7 Fix the other end of the front mounting brackets to the front brackets with screws and captive nuts and  
ensure that front and rear mounting brackets have fixed the switch in the cabinet securely, as shown in  
3-7  
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Figure 3-10 Effect diagram of front and rear mounting bracket installation (2)  
(1) Load-bearing screw  
(3) Front panel  
(5) Front mounting bracket  
(2) Rear mounting bracket  
(4) Screw used to fix front mounting brackets to front brackets  
(6) Front square-holed post  
Mounting the Switch on a Workbench  
In many cases, standard 19-inch racks are not available. Therefore, switches are often placed on clean  
workbenches. To place your switch on a workbench, you simply need to:  
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Make sure that the workbench is clean, flat, and sturdy.  
Make sure that the environment is well ventilated and allows 10 cm (3.94 in.) of space around the  
chassis for heat dissipation.  
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Do not place heavy objects on your switch.  
The vertical distance between two switches must be at least 1.5 cm (0.59 in).  
3-8  
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Connecting the Grounding Cable  
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Correctly connecting the chassis grounding cable is crucial to the lightning protection and  
electromagnetic susceptibility (EMS) of a switch.  
The power and grounding terminals in this section are for illustration only.  
The power input end of the switch is connected with a noise filter, whose central ground is directly  
connected to the chassis, forming the so-called chassis ground (commonly known as PGND). This  
chassis ground must be securely connected to the earth so that the faradism and leakage electricity can  
be safely released to the earth, enhancing the EMS capability of the switch.  
When a Grounding Strip is Available  
When a grounding strip is available at the installation site, attach one end of the yellow-green grounding  
cable (PGND cable) of the switch to the grounding screw on the grounding strip (the grounding screw  
and the grounding hole are on the rear panel of the switch and are marked with a grounding sign). To do  
this, follow these steps:  
Step1 Remove the grounding screw from the rear panel of the switch chassis.  
Step2 Put the supplied OT terminal of the PGND cable on the grounding screw.  
Step3 Fasten the grounding screw, which is attached with the OT terminal of the PGND cable, into the  
grounding screw hole with a screwdriver.  
Figure 3-11 Connect the PGND cable to the grounding hole of switch  
(1) Rear panel of the switch  
(3) Grounding hole  
(2) Grounding sign  
(4) OT terminal  
(5) PGND cable  
(6) Grounding screw  
To attach the other end of the PGND cable to the grounding strip in the equipment room, follow these  
steps:  
3-9  
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Step1 Cut the PGND cable to a proper length according to the distance between the switch and the grounding  
strip.  
Step2 Peel 5 mm (0.20 in.) of insulation sheath using a wire stripper, and then insert the naked metal part  
through the black insulation covering into the end of the OT terminal.  
Step3 Secure the metal part of the cable to the OT terminal with a crimper, and then cover it with the insulation  
covering. Then heat the insulation covering with a blowing machine to let it completely cover the metal  
part.  
Step4 Connect the OT terminal to the grounding pole of the grounding strip, and then fasten it with a hex nut.  
Figure 3-12 Connect the PGND cable to the grounding strip  
(1) Grounding post  
(3) PGND cable  
(2) Grounding strip  
(4) Hex nut  
The fire main and lightning rod of a building are not suitable for grounding the switch. The ground wire of  
the switch should be connected to the grounding device for the equipment room.  
Where a Grounding Conductor Can be Buried  
When there is no grounding strip, but an area with exposed earth is available nearby where a grounding  
conductor can be buried, hammer a 0.5 m (1.64 ft.) or longer angle iron or steel tube into the earth. The  
angle iron should have a dimension no less than 50 × 50 × 5 mm (1.97 × 1.97 × 0.20 in.) and the steel  
tube should have a wall thickness no less than 3.5 mm (0.14 in.) and be zinc-coated. Weld the  
yellow-green ground wire to the angel iron or steel tube and treat the joint for corrosion protection.  
3-10  
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Figure 3-13 Ground the switch by burying the grounding conductor into the earth  
(1) Grounding screw  
(4) Joint  
(2) PGND cable  
(5) Grounding conductor  
(3) Earth  
(6) Switch rear panel  
In Other Installation Sites  
For an AC-powered switch, if neither of the above-mentioned two conditions is available, ground the  
switch through the PE wire of the AC power supply. Make sure the PE wire is well connected to the  
ground at the power distribution room or AC transformer side, the switch PE terminal and the PE wire  
are well connected, and the three-wire input cable of the PGND cable is used for the power supply cable.  
If the PE wire of the AC power supply is not grounded at the power distribution room or AC transformer  
side, report the problem and make reconstructions.  
Figure 3-14 Ground through an AC power PE wire  
(1) Three-wire AC power input cable  
(2) Switch rear panel  
Use the PGND cable provided with the switch to connect the grounding strip in the equipment room.  
Otherwise, the grounding effect may not be ensured, which easily causes damage to the switch.  
3-11  
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Connecting the Power Cords  
Make sure that the ground wire has been properly connected before powering on the switch.  
Table 3-3 Power cord connection methods of the Switch 4210G  
Power supply  
Switch module  
Connection method  
mode  
Switch 4210G 24-Port  
Switch 4210G 48-Port  
Switch 4210G NT 24-Port  
Switch 4210G NT 48-Port  
AC power supply  
AC power supply  
Switch 4210G PWR 24-Port  
Switch 4210G PWR 48-Port  
Connecting the AC Power Cord  
Step1 Wear an ESD-preventive wrist strap, ensure a good skin contact and make sure that the  
ESD-preventive wrist strap is properly grounded.  
Step2 Install the bail latch to prevent the AC power cord from accidentally falling off. Fix the bail latch into the  
holes located at the two sides of the AC power receptacle. Then pull the bail latch upwards (see in  
Step3 Connect one end of the AC power cord to the AC receptacle on the switch (see callout 1 in Figure 3-16  
or Figure 3-18).  
Step4 Pull the bail latch down to secure the plug to the AC receptacle (see callout 2 in Figure 3-16 or Figure  
3-18).  
Step5 Connect the other end of the AC power cord to the external AC power supply system.  
Step6 Check whether the system status LED (PWR) on the front panel of the switch is ON. If the LED is ON, it  
shows the power cord is properly connected.  
Figure 3-15 Connect an AC power cord to a horizontal AC power socket (1)  
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Figure 3-16 Connect an AC power cord to a horizontal AC power socket (2)  
Figure 3-17 Connect an AC power cord to a vertical AC power socket (1)  
Figure 3-18 Connect an AC power cord to a vertical AC power socket (2)  
Connecting the RPS Power Cord  
Connect RPS power cords of the Switch 4210G (excluding Switch 4210G PWR 24-Port and  
Switch 4210G PWR 48-Port)  
The Switch 4210G 24-Port, Switch 4210G 48-Port, Switch 4210G NT 24-Port, and Switch 4210G NT  
48-Port can work with RPS500-A3 using its +12 V/10.5 A output and a 0404A03C power cord.  
Procedures for connecting the RPS power cords are the same for these three models.  
Follow these steps to connect an RPS power cord to the switch:  
Step1 Wear an ESD-preventive wrist strap, ensure a good skin contact and make sure that the  
ESD-preventive wrist strap is properly grounded.  
Step2 Loosen the captive screws on the RPS receptacle protective cover and remove the protective cover, as  
shown in Figure 3-19. (If you do not use the +12 VDC RPS interface, install the protective cover.)  
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Figure 3-19 Connect an RPS power cord (1)  
Step3 Keep the upside of the +12 VDC RPS plug on top and plug it in the RPS DC receptacle (see callout 1 in  
Figure 3-20). (If you plug it with the upside down, the insertion is not smooth because of the specific  
structure design of the RPS DC receptacle and the RPS plug.)  
Step4 Use a flat-blade screwdriver to fix the two screws on the RPS plug clockwise to secure the plug to the  
RPS DC receptacle (see callout 2 in Figure 3-20).  
Figure 3-20 Connect an RPS power cord (2)  
Step5 Connect the other end of the +12 VDC RPS power cord to the external RPS power supply system.  
Step6 Check whether the RPS LED on the front panel of the switch is ON. If yes, the power is properly  
connected.  
Connecting the RPS Power Cord of the Switch 4210G PWR 24-Port and Switch 4210G PWR  
48-Port  
The Switch 4210G PWR 24-Port and Switch 4210G PWR 48-Port can work with RPS1000-A3 using its  
–54 V/25 A output and a 0404A053 power cord.  
Follow these steps to connect an RPS power cord to the switch:  
Step1 Connect one end of the grounding wire (delivered with the switch) to the grounding screw and the other  
end to the ground nearby.  
Step2 Keep the upside of the RPS plug on top and plug it in the RPS DC receptacle (see callout 1 in Figure  
3-21). (If you plug it upside down, the insertion is not smooth because of the specific structure design of  
the RPS DC receptacle and the RPS plug.)  
Step3 Use a flat-blade screwdriver to fix the two screws on the RPS plug clockwise to secure the plug to the  
RPS DC receptacle (see callout 2 in Figure 3-21).  
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Figure 3-21 Connect an RPS power cord to the Switch 4210G PWR 24-Port and Switch 4210G PWR  
48-Port  
Step4 Connect the other end of the RPS DC power cord to the external RPS power supply system.  
Step5 Check whether the RPS LED on the front panel of the switch is ON. If the LED is ON, it shows the power  
cord is properly connected.  
Installing an Interface Module  
Each Switch 4210G 24-Port, Switch 4210G 48-Port, Switch 4210G PWR 24-Port, and Switch 4210G  
PWR 48-Port provides two interface module slots on the rear panel. For details about optional interface  
modules, refer to Optional Interface Modules on page 1-15.  
The installation and removal of various interface modules are similar. This section describes the  
installation and removal of the Dual-Port 10 GE XFP Interface Module (3C17766) for illustration.  
Installing an Interface Card  
Step1 Wear an ESD-preventive wrist strap, ensure a good skin contact and make sure that the  
ESD-preventive wrist strap is properly grounded.  
Step2 Loosen the mounting screws of the filler panel on the interface module slot of the switch's rear panel  
with a Phillips screwdriver and remove the filler panel.  
Figure 3-22 Install an interface module (1)  
Step3 Hold the fastening screws on the front panel of the XFP interface module, and gently push the interface  
module in along the slot guide rail until the interface module is in close contact with the switch.  
Step4 Tighten the captive screws with a Phillips screwdriver to fix the interface module.  
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Figure 3-23 Install an interface module (2)  
z
z
Keep the removed filler panel properly for future use.  
When tightening the fastening screws at both sides of the optional module with a screwdriver or an  
electric screwdriver, make sure that the torque is not bigger than 0.4 N-m.  
Removing an Interface Module  
Step1 Wear an ESD-preventive wrist strap, ensure a good skin contact and make sure that the  
ESD-preventive wrist strap is properly grounded.  
Step2 Use a Phillips screwdriver to loosen the captive screws at both sides of the interface module until all  
spring pressure is released.  
Step3 Pull the interface module towards you along the guide rails, until it completely comes out of the switch  
chassis.  
When installing or removing an optional interface module, pay attention to the following points:  
z
z
z
Do not touch the surface-mounted components directly with your hands.  
Do not use too much force in the operation.  
After removing an interface module, if no new module is to be installed, install the filler panel as  
soon as possible to prevent dust and ensure the normal ventilation in the switch.  
Installing Dedicated CX4/SFP+ Cable  
Installing Dedicated CX4/SFP+ Cable  
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The installation and removal of dedicated CX4 cables and SFP+ cables are similar. This section  
describes the installation and removal of the dedicated CX4 cable for illustration.  
Make sure that you have installed a CX4/SFP+ interface module before installing CX4/SFP+ cables.  
Step1 Put on an ESD-preventive wrist strap and verify the ESD-preventive wrist strap properly grounded.  
Then take out the dedicated CX4 cable from the package.  
Step2 Horizontally plug the plug of the dedicated CX4 cable into the CX4 port of the switch and pay attention to  
the direction of the plug when plugging it.  
Removing Dedicated CX4/SFP+ Cable  
Step1 Put on an ESD-preventive wrist strap and verify the ESD-preventive wrist strap properly grounded.  
Step2 Hold the plug of the CX4 cable, pull the handle at the end of the plug to horizontally unplug the plug of  
the CX4 cable from the CX4 port of the switch.  
z
z
Dedicated CX4/SFP+ cable of the Switch 4210G is hot pluggable.  
Make sure that the cable bending radius is no less than eight times of the cable diameter when  
dedicated CX4/SFP+ cable is connected.  
Installing Switches for an IRF  
The Switch 4210G 24-Port, Switch 4210G 48-Port, Switch 4210G PWR 24-Port, and Switch 4210G  
PWR 48-Port support the IRF function. You can install IRF-capable interface modules to connect  
multiple switches through the 10 GE ports to form a logical entity, thus to establish a new intelligent  
network with high reliability, expandability and manageability.  
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Installation Flow for an IRF  
Figure 3-24 Installation flow for an IRF  
Table 3-4 Description of the installation flow for an IRF of switches  
No  
Task  
Remarks  
Take the following into consideration:  
z
z
z
z
Number of IRF members and the bandwidth  
Interface modules and cables  
Physical connection mode( daisy chain connection or ring connection)  
Cable connection  
Draw a plan for  
an IRF with  
switches  
1
For detailed installation procedures, see:  
Install the IRF  
members to the  
correct position  
2
3
z
z
Connect  
grounding  
cables and  
power cords for  
the switches  
For details, see:  
z
z
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No  
Task  
Remarks  
Power on the  
IRF members  
4
Install interface  
modules  
5
6
7
For details, see Installing an Interface Module.  
Configure  
software for the  
IRF members  
For details about the IRF function, see IRF Configuration in the System  
Volume of the 3Com Switch 4210G Family Configuration Guide.  
Power off the  
switches  
Use cables to connect 10 G ports of the interface modules:  
z
z
The given XFP ports work with XFP optical transceivers and fibers  
The given SFP+ ports can work with SFP+ optical transceivers and  
fibers for long-haul transmission; or they can be directly connected  
through dedicated SFP+ cables for short-haul transmission  
Connect the  
cables  
8
9
z
The given CX4 ports use dedicated CX4 cables for connection  
For details about the cable connection, refer to Installing Dedicated  
Power on the  
switches  
Finish establishing an IRF  
Drawing a Plan for an IRF with Switches  
Before implementing an IRF of switches, draw a plan according to actual conditions of the user network  
and network devices and take the following points into consideration:  
Determine the number of IRF members and the bandwidth  
You can determine the number of IRF members and the bandwidth according to the network scale.  
z
z
The Switch 4210G support two to four switches in a stack.  
The Switch 4210G support aggregation of the 10 GE ports. You can assign the two 10 GE ports of  
an interface module to an aggregation group to expand the bandwidth for the stack.  
10 GE ports of different interface modules cannot join the same aggregation group in the IRF. Therefore,  
1-port XFP interface modules do not support port aggregation in the IRF.  
Select the proper interface modules and cables  
You can select the interface modules and cables according to the distance between devices in the IRF.  
For long-distance connections, use XFP or SFP+ transceivers and fibers to connect the devices; for  
short-distance connections, use 3C17767 or LSPM2SP2P with CX4 or SFP+ cables to connect the  
devices. For details, see Optional Interface Modules.  
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Configure the physical connection mode  
IRF supports two physical connection modes: daisy chain connection and ring connection.  
A ring connection is more reliable than a daisy chain connection. The failure of one link in a ring  
connection does not affect the function and performance of the IRF, whereas the failure of one link in a  
daisy chain connection causes the split of the IRF.  
Figure 3-25 The daisy chain connection mode  
Master  
Slave  
IRF  
Slave  
Figure 3-26 The ring connection mode  
Each of the devices comprising a ring connection or non-edge devices in a daisy chain connection  
needs two 10 GE ports to connect other devices; therefore, you need to install two 1-port 10 GE XFP  
interface modules on such devices.  
Connect the cables  
Before connecting the cables, determine the actual position of the member devices and the length of  
the cables, and observe the following:  
z
z
Understand the neighbor devices for one another  
Install the interface modules in proper slots as needed. Each Switch 4210G provides two  
expansion slots.  
z
Determine the ports on different devices to be connected.  
Note that:  
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z
When 2-port interface modules are used to constitute an IRF of switches and the ports are not  
assigned to any aggregation group, ports of the interface module in slot 1 (MOD 1) can be  
connected to ports of MOD 1 or MOD 2. However, the left port can be connected to only the right  
port of another interface module, that is, two ports at the same side cannot be connected, as shown  
Figure 3-27 Cable connections in an IRF in the non-aggregate mode with 2-port interface modules  
z
When 2-port interface modules are adopted in an IRF with ports operating in the aggregation mode,  
ports of MOD 1 can only be connected to ports of MOD 2, and the locations of the ports of the  
interface modules are not limited.  
Figure 3-28 Cable connections in an IRF in the aggregation mode with 2-port interface modules  
z
1-port interface modules do not support port aggregation in the IRF. When 1-port interface modules  
are connected for an IRF, the port of MOD 1 can only be connected to the port on MOD 2, as shown  
by callout 1 in Figure 3-29; when a 1-port interface module is connected to a 2-port interface  
module for an IRF, the port of MOD 1 can only be connected to the right port of the 2-port interface  
module, as shown by callout 2 in Figure 3-29.  
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Figure 3-29 Cable connections for an IRF with 1-port interface modules  
Verifying the Installation  
z
z
z
z
Check whether the selected power is the same as the power label on the switch;  
Check whether the ground wire is connected;  
Check whether the power cords are connected correctly;  
Check whether all the interface cables are routed indoors. If there are cables outdoors, check that  
the socket strip with lightning protection and lightning arresters for network ports have been  
correctly connected.  
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4
Starting and Configuring the Switch  
Setting up the Configuration Environment  
Set up the configuration environment as follows:  
Connect a terminal (a PC in this example) to the console port on the switch with a console cable.  
Figure 4-1 Network diagram for configuration environment setup  
Connecting the Console Cable  
Console Cable  
A console cable is an 8-core shielded cable. One end of the cable is a crimped RJ-45 connector, which  
is connected to the console port of the switch, and the other end is a DB-9 female connector, which is  
connected to the serial port on the console terminal, as shown below.  
Figure 4-2 Console cable  
Table 4-1 Console cable pinouts  
RJ-45  
Signal  
Direction  
DB-9  
1
2
RTS  
DTR  
7
4
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RJ-45  
Signal  
Direction  
DB-9  
3
4
5
6
7
8
TXD  
CD  
--  
3
1
5
2
6
8
GND  
RXD  
DSR  
CTS  
Connection Procedure  
When you want to use the terminal to configure the switch, follow these steps to connect a terminal  
device to the switch using the console cable:  
Step1 Plug the DB-9 female connector of the console cable to the serial port of the console terminal or PC.  
Step2 Connect the RJ-45 connector of the console cable to the console port of the switch.  
Pay attention to the mark on the console port and be sure to plug the connector to the correct port.  
z
z
When connecting a PC to a powered-on switch, you are recommended to connect the DB-9  
connector of the console cable to the PC before connecting the RJ-45 connector to the switch.  
When disconnecting a PC from a powered-on switch, you are recommended to disconnect the  
DB-9 connector of the console cable from the PC after disconnecting the RJ-45 connector from the  
switch.  
Setting Terminal Parameters  
When setting up the configuration environment through the console port, the terminal or PC can use the  
terminal emulation program to communicate with the switch. You can run the HyperTerminal of the  
Windows operating system to connect to other PCs, network devices, and Telnet sites. For detailed  
information and the use of the HyperTerminal, refer to the HyperTerminal Help documentation in Help  
and Support Center on the PC running the Windows operating system.  
In the following configuration procedure, Windows XP HyperTerminal is used to communicate with the  
switch.  
1) Start the PC and run the terminal emulation program.  
2) Set terminal parameters as follows:  
z
Bits per second: 19,200  
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z
z
z
z
z
Data bits: 8  
Parity: None  
Stop bits: 1  
Flow control: None  
Emulation: VT100  
The specific procedure is as follows:  
Step1 Select Start > Programs > Accessories > Communications > HyperTerminal to enter the  
HyperTerminal window. The Connection Description dialog box appears, as shown below.  
Figure 4-3 Connection description of the HyperTerminal  
Step2 Type the name of the new connection in the Name text box and click OK. The following dialog box  
appears. Select the serial port to be used from the Connect using drop-down list.  
Figure 4-4 Set the serial port used by the HyperTerminal connection  
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Step3 Click OK after selecting a serial port. The following dialog box appears. Set Bits per second to 19200,  
Data bits to 8, Parity to None, Stop bits to 1, and Flow control to None.  
Figure 4-5 Set the serial port parameters  
Step4 Click OK after setting the serial port parameters and the system enters the HyperTerminal window  
shown below.  
Figure 4-6 HyperTerminal window  
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Step5 Click Properties in the HyperTerminal window to enter the Switch Properties dialog box. Click the  
Settings tab, set the emulation to VT100, and then click OK.  
Figure 4-7 Set terminal emulation in Switch Properties dialog box  
Booting the Switch  
Checking before Powering on the Switch  
Before powering on the switch, verify that:  
z
z
z
The power cord and ground cable are properly connected.  
The power supply voltage is consistent with that required by the switch.  
The console cable is properly connected; the terminal (which can be a PC) used for configuration  
has been started; and the configuration parameters have been set.  
Powering on the Switch  
All the Switch 4210G have the same Boot ROM display style. This document uses the Boot ROM  
display of Switch 4210G 24-Port as an example:  
Starting......  
*************************************************************************  
*
*
*
*
*
*
Switch 4210G 24-Port BOOTROM, Version 510  
*************************************************************************  
Copyright (c) 2004-2009 3Com Corporation and its licensors.  
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Creation date  
: May 18 2009, 17:01:57  
CPU Clock Speed : 264MHz  
BUS Clock Speed : 33MHz  
Memory Size  
Mac Address  
: 128MB  
: 001cc5bc3111  
Press Ctrl-B to enter Boot Menu... 1  
The last line asks whether you want to enter the Boot Menu. The system waits one second for your  
response.  
z
z
The system has two startup modes: normal startup and fast startup. The normal startup mode  
takes a little longer time than the fast startup mode because of more self-test operations.  
By default, the system starts up in fast startup mode and the waiting time here is one second. If you  
set the startup mode to normal, this waiting time is five seconds. For the setting of the startup mode,  
refer to the section Changing the Startup Mode.  
z
If you press Ctrl + B within 1 second, the system displays:  
Password :  
Enter the correct Boot ROM password and click Enter to enter the Boot Menu. By default, no password  
is set and you can click Enter directly to enter the 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):  
Table 4-2 describes the fields above.  
Table 4-2 Description on the fields  
Item  
Description  
1. Download application file to flash  
2. Select application file to boot  
3. Display all files in flash  
Download the application file to the flash memory  
Select the application file to boot  
Display all files in the flash memory  
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Item  
Description  
Delete files from the flash memory  
Modify the Boot ROM password  
Enter the Boot ROM update menu  
4. Delete file from flash  
5. Modify bootrom password  
6. Enter bootrom upgrade menu  
Skip the current configuration file (this configuration is  
valid once)  
7. Skip current configuration file  
8. Set bootrom password recovery  
9. Set switch startup mode  
0. Reboot  
Restore the Boot ROM password  
Set the startup mode of the switch  
Restart the switch  
z
If you perform no operation or press a key other than Ctrl + B within one second, Once the  
remaining waiting time becomes zero, the system begins to automatically start up and the following  
information is displayed:  
Auto-booting...  
Decompress Image................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
...........................................OK!  
User interface aux0 is available.  
Press ENTER to get started.  
The appearance of "Press ENTER to get started" indicates that the automatic startup of the switch is  
complete.  
Press Enter. The following prompt is displayed:  
<Sysname>  
You can configure the switch now.  
Changing the Startup Mode  
By default, the system starts up in fast mode. If you want to change the startup mode to normal, press  
Ctrl + B within one second to enter the Boot Menu showed below:  
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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):  
Enter 9, and the system prompts you to change the startup mode:  
The current mode is fast startup mode!  
Are you sure you want to change it to full startup mode? Yes or No(Y/N)  
Enter Y. The system displays the following information:  
Setting startup mode...done!  
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):  
Enter 0. The system reboots in normal mode and displays the following information:  
Starting......  
*************************************************************************  
*
*
*
*
*
*
Switch 4210G 24-Port BOOTROM, Version 510  
*************************************************************************  
Copyright (c) 2004-2009 3Com Corporation and its licensors.  
Creation date  
: May 18 2009, 17:01:57  
CPU Clock Speed : 264MHz  
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BUS Clock Speed : 33MHz  
Memory Size  
Mac Address  
: 128MB  
: 001cc5bc3111  
Press Ctrl-B to enter Boot Menu... 0  
In normal startup mode, the waiting time here is five seconds. If you press Ctrl + B within five seconds,  
the Boot Menu is displayed. If you press Ctrl + B within five seconds, the Boot Menu is displayed: If you  
perform no operation or press a key other than Ctrl + B within five seconds, the system begins to  
automatically start up and the following information is displayed:  
Auto-booting...  
Decompress Image................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
...........................................OK!  
Board checking.......................LSP1LTSUD  
SDRAM fast selftest........................OK!  
Flash fast selftest........................OK!  
CPLD selftest..............................OK!  
Switch chip selftest.......................OK!  
PHY selftest...............................OK!  
Subslot 1 (3CRS45G-24-91) selftest.........OK!  
Please check leds....................FINISHED!  
User interface aux0 is available.  
Press ENTER to get started.  
The appearance of "Press ENTER to get started" indicates that the automatic startup of the switch is  
complete.  
Press Enter. The following prompt is displayed:  
<Sysname>  
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You can configure the switch now.  
The Switch 4210G provide abundant command views. For detailed descriptions about the configuration  
commands and CLI, refer to 3Com Switch 4210G Family Configuration Guide, 3Com Switch 4210G  
Family Command Reference Guide.  
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5
Boot ROM and Host Software Loading  
Introduction to Loading Modes  
The switch software consists of Boot ROM software (.btm) and host software (.bin). You can load both  
the two types of software through the approaches displayed in Table 5-1.  
Table 5-1 Approaches for loading software on the switch  
Approach  
Section  
Loading files through the Boot ROM  
menu  
Loading files through the CLI  
The Boot ROM software version must match the host software version when you load the Boot ROM  
and host software.  
Loading Software Through the Boot ROM Menu  
If your terminal is directly connected to the switch, you can load Boot ROM and host software locally  
through the Boot ROM menu.  
Before loading the software, make sure that your terminal is correctly connected to the switch to insure  
successful software loading.  
Boot Menu  
Starting......  
*************************************************************************  
*
*
*
*
*
*
Switch 4210G 24-Port BOOTROM, Version 510  
*************************************************************************  
Copyright (c) 2004-2009 3Com Corporation and its licensors.  
Creation date  
: May 18 2009, 17:01:57  
5-1  
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CPU Clock Speed : 264MHz  
BUS Clock Speed : 33MHz  
Memory Size  
Mac Address  
: 128MB  
: 001cc5bc3111  
Press Ctrl-B to enter Boot Menu... 1  
Press Ctrl + B. The system displays:  
Password :  
z
z
To enter the Boot Menu, you must press Ctrl + B within one second after the information “Press  
Ctrl-B to enter Boot Menu...” appears. Otherwise, the system starts to decompress the program;  
and if you want to enter the Boot Menu at this time, you will have to restart the switch.  
By default, the system starts up in fast startup mode and the waiting time here is one second. If you  
set the startup mode to normal, this waiting time is five seconds. For the setting of the startup mode,  
refer to the section Changing the Startup Mode.  
Input the correct Boot ROM password (by default, no password is set on the switch and you can click  
Enter directly). The system enters the 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):  
The items in the Boot ROM menu are described in Table 4-2.  
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The loading process of the Boot ROM software is the same as that of the host software, except that  
during the Boot ROM loading process, you must enter the different digit after entering the Boot Menu  
and the system gives somewhat different prompts. The following text mainly describes the Boot ROM  
loading process.  
Loading Software Using XMODEM Through Console Port  
Introduction to XMODEM  
XMODEM is a file transfer protocol that is widely used due to its simplicity and good performance.  
XMODEM transfers files via console port. It supports one type of data packets (128 bytes), two check  
methods (checksum and CRC), and error packet retransmission mechanism (generally the maximum  
number of retransmission attempts is ten).  
The XMODEM transmission procedure is completed by the cooperation of a receiving program and a  
sending program. The receiving program sends a negotiation packet to negotiate a packet check  
method. After the negotiation, the sending program starts to transmit data packets. When receiving a  
complete packet, the receiving program checks the packet using the agreed method. If the check  
succeeds, the receiving program sends an acknowledgement packet and the sending program  
proceeds to send another packet; otherwise, the receiving program sends a negative  
acknowledgement packet and the sending program retransmits the packet.  
Loading Boot ROM software  
Complete the following tasks to update the Boot ROM software using XMODEM through the console  
port (For details about the HyperTerminal, refer to Setting Terminal Parameters on page 4-2):  
Task  
Remarks  
Log in to the switch through the HyperTerminal  
and then configure the protocol used for loading  
files.  
Required  
Log in to the switch through the HyperTerminal  
and then set the download rate of the console port  
on the switch.  
Optional  
Set the baud rate of the serial port on the terminal  
to be consistent with that of the console port on  
the switch.  
Required  
Transmit a file from the terminal to the switch, and  
update the Boot ROM file on the switch.  
Optional  
Set the baud rate of the serial port on the terminal  
to be consistent with the default rate of the  
console port on the switch.  
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Task  
Remarks  
Required  
1) Enter the Boot ROM update menu on the switch  
Enter the Boot ROM menu, and then enter 6 after the system displays “Enter your choice(0-9):” to enter  
the Boot ROM update menu.  
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) Configure the switch to download files using XMODEM  
Enter 3 in the above menu to load the Boot ROM and host software using XMODEM protocol. The  
system displays the following download baud rate setting menu:  
Please select your download baudrate:  
1. 9600  
2.* 19200  
3. 38400  
4. 57600  
5. 115200  
0. Return  
Enter your choice (0-5):  
3) Set the download rate of the console port on the switch  
Select an appropriate download rate. For example, if you select 115200 bps, that is, enter 5, the  
following information is displayed:  
Download baudrate is 115200 bps  
Please change the terminal's baudrate to 115200 bps and select XMODEM protocol  
Press enter key when ready  
Now that the console communication baud rate of the switch has been changed to 115200 bps while  
that of the terminal is still 19200 bps, the two sides cannot communicate with each other. According to  
the prompt, you need to change the baud rate of the terminal to 115200 bps.  
z
z
It is recommended to set the download rate to 115200 bps since the software files are generally  
very large.  
If you have chosen 19200 bps, you do not need to modify the HyperTerminal’s baud rate, and  
therefore you can skip step 4) below and proceed to step 5) directly.  
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4) Change the rate of the serial port on the terminal  
To ensure communication between the terminal and the switch, the baud rate of the serial port on the  
terminal should be consistent with that of the console port on the switch.  
Step1 Select Call > Disconnect in the HyperTerminal window to disconnect the terminal from the switch.  
Figure 5-1 Disconnect the terminal from the switch  
Step2 Select File > Properties. In the Properties dialog box, click Configure (as shown in Figure 5-2), and  
then select 115200 from the Bits per second drop-down list box (as shown in Figure 5-3).  
Figure 5-2 Properties dialog box  
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Figure 5-3 Modify the baud rate  
Step3 Select Call > Call to reestablish the connection.  
Figure 5-4 Reestablish the connection  
The new settings can take effect only after you reestablish the connection.  
5) Download the Boot ROM file  
Step1 Press Enter in the HyperTerminal window to start downloading the program. The system displays the  
following information:  
CCCCCCCCCCCCCCCCCC  
Press Ctrl + X to quit downloading files; otherwise, proceed as follows.  
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Step2 Select Transfer > Send File in the HyperTerminal’s window. Click Browse in the pop-up dialog box (as  
shown in Figure 5-5) to select the application file to be downloaded (for example, bootrom.btm), and  
select Xmodem from the Protocol drop-down list.  
Figure 5-5 Send file dialog box  
Step3 Click Send. The following dialog box appears:  
Figure 5-6 Page for file sending  
After the Boot ROM file is downloaded, the terminal displays the following information:  
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCdone!  
Bootrom updating..........done!  
Your baudrate should be set to 19200 bps again!  
Press enter key when ready  
You do not need to reset the HyperTerminal’s baud rate and can skip the last step if you have chosen  
19200 bps. In this case, the system returns to the Boot ROM update menu directly instead of displaying  
the prompt "Your baudrate should be set to 19200 bps again! Press enter key when ready".  
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6) Restore the download rate to the default  
Set the baud rate to 19200 bps (refer to Change the rate of the serial port on the terminal on page 5-5 for  
detailed operation).  
7) Restart the switch to make the updated Boot ROM file effective  
Press Enter in the HyperTerminal window to return to the Boot ROM update 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):  
Enter 0 to restart the device. After that, the updated Boot ROM file becomes effective.  
Loading host software  
Select 1 in Boot Menu to load the host software of the switch. The system displays the following  
information:  
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):3  
To load the host software through XMODEM, select 3.  
The subsequent steps are almost the same as those for loading the Boot ROM software, except that the  
system gives the prompt for host software loading instead of Boot ROM loading.  
Loading Software Using TFTP through Ethernet Port  
Introduction to TFTP  
Trivial file transfer protocol (TFTP), a protocol in TCP/IP protocol suite, is used for trivial file transfer  
between client and server. It uses UDP to provide unreliable data stream transfer service.  
Loading Boot ROM software  
Step1 Connect an Ethernet port (GigabitEthernet 1/0/25, for example) of the switch to the server (whose IP  
address is available) that provides the file (usually the .bin file or the .btm file) to be downloaded, and  
connect the console port of the switch to a PC, as shown in Figure 5-7.  
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Figure 5-7 Load Boot ROM software through TFTP/FTP  
z
z
You can use one PC as both configuration device and TFTP server.  
The TFTP/FTP server program is not provided with the Switch 4210G. Make sure that it is available  
by yourself.  
Step2 Run TFTP Server on the server connected with the switch’s Ethernet port, and specify the path of the  
application file to be downloaded.  
Step3 Run the terminal emulation program on the PC connected with the switch’s console port. Start the  
switch and enter the Boot ROM menu. At the prompt "Enter your choice(0-9):" select 6 in the Boot Menu  
and then press Enter to enter the Boot ROM update menu shown below:  
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):  
Step4 Select 1 in the Boot ROM update menu to download the Boot ROM software using TFTP. Then set the  
following TFTP-related parameters as required:  
Load File name  
:update.btm  
:1.1.1.2  
Switch IP address  
Server IP address  
:1.1.1.1  
The parameters are described in Table 5-2.  
Table 5-2 Description of the TFTP parameters  
Item  
Description  
Load File name  
:
Name of the file to be downloaded (for example, update.btm)  
IP address of the switch (for example, 1.1.1.2)  
IP address of server (for example, 1.1.1.1)  
Switch IP address :  
Server IP address :  
Step5 Press Enter after inputting the information above. The system displays the following information:  
Are you sure you want to download file to flash? Yes or No(Y/N)  
Step6 Enter Y to start file downloading or N to return to the Boot ROM update menu. If you enter Y, the system  
begins to download and update the Boot ROM software. Upon completion, the system displays the  
following information to show the loading process is completed:  
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Loading........................................done  
Bootrom updating..........done!  
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):  
Step7 Enter 0 to restart the device. After that, the updated Boot ROM file becomes effective.  
Loading host software  
Select 1 in Boot Menu to load the host software of the switch. The system displays the following  
information:  
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):1  
To load the host software through XMODEM, select 1.  
The subsequent steps are almost the same as those for loading the Boot ROM software, except that the  
system gives the prompt for host software loading instead of Boot ROM loading.  
Loading Software Using FTP Through Ethernet Port  
Introduction to FTP  
File transfer protocol (FTP) is an application-layer protocol in the TCP/IP protocol suite. It is used for  
transferring files between server and client, and is widely used in IP networks.  
You can use FTP to load software onto the switch through an Ethernet port. In this case, the switch can  
act as an FTP server or an FTP client. In the following example, the switch acts as an FTP client.  
Loading Boot ROM software  
When upgrading the Boot ROM program, the switch can serve only as an FTP client.  
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Step1 Connect an Ethernet port (GigabitEthernet 1/0/25, for example) of the switch to the server (whose IP  
address is available) that provides the file (usually the .bin file or the .btm file) to be downloaded, and  
connect the console port of the switch to a PC, as shown in Figure 5-7.  
Step2 Run FTP Server on the server connected with the switch’s Ethernet port, configure the FTP username  
and password, and specify the path of the application file to be downloaded.  
Step3 Run the terminal emulation program on the PC connected with the switch’s console port. Start the  
switch and enter the Boot ROM menu. At the prompt "Enter your choice(0-9):" select 6 in the Boot Menu,  
and then press Enter to enter the Boot ROM update menu shown below:  
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):  
Step4 Enter 2 in the above menu to download the Boot ROM software using FTP. Then set the following  
FTP-related parameters as required:  
Load File name  
:update.btm  
:10.1.1.2  
:10.1.1.1  
:4210G  
Switch IP address  
Server IP address  
FTP User Name  
FTP User Password  
:123  
The parameters are described in Table 5-3.  
Table 5-3 Description of the FTP parameters  
Item  
Description  
Name of the file to be downloaded  
Load File name  
:
Switch IP address  
IP address of the switch  
Server IP address :  
FTP User Name  
IP address of the FTP server  
Username for logging in to the FTP server, which should be consistent  
with that configured on the FTP server.  
Password for logging in to the FTP server, which should be consistent  
with that configured on the FTP server.  
FTP User Password  
Step5 Press Enter after inputting the information above. The system displays the following information:  
Are you sure you want to download file to flash? Yes or No(Y/N)  
Step6 Enter Y to start file downloading or N to return to the Boot ROM update menu. If you enter Y, the system  
begins to download and update the program. Upon completion, the system displays the following  
information:  
Loading........................................done  
Bootrom updating..........done!  
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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):  
Step7 Enter 0 to restart the device. After that, the updated Boot ROM file becomes effective.  
Loading host software  
Select 1 in Boot Menu to load the host software of the switch. The system displays the following  
information:  
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  
To load the host software through FTP, select 2.  
The subsequent steps are almost the same as those for loading the Boot ROM software, except that the  
system gives the prompt for host software loading instead of Boot ROM loading.  
Loading Software Through CLI  
You can telnet to the switch, and use FTP or TFTP to load Boot ROM and host software remotely.  
Loading Software Using FTP  
As shown in Figure 5-8, a PC is used as both configuration device and FTP server. You can telnet to the  
switch, and then execute the FTP commands to download the host program 4210G.bin and the Boot  
ROM program 4210G.btm from the remote FTP server (with IP address 202.10.10.53) to the switch.  
Figure 5-8 Load software using FTP/TFTP remotely  
Step1 Download the software to the switch using FTP commands.  
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<Sysname> ftp 202.10.10.53  
Trying ...  
Press CTRL+K to abort  
Connected.  
220 WFTPD 2.0 service (by Texas Imperial Software) ready for new user  
User(none):4210G  
331 Give me your password, please  
Password:  
230 Logged in successfully  
[ftp] get 4210G.bin  
[ftp] get 4210G.btm  
[ftp] bye  
Step2 Update the Boot ROM program on the switch.  
<Sysname> bootrom update file 4210G.btm  
This command will update BootRom file, Continue? [Y/N]y  
Updating BootRom, please wait...  
Upgrade Bootrom succeeded!  
Step3 Update the host software on the switch.  
<Sysname> boot-loader file 4210G.bin  
<Sysname> display boot-loader  
The current boot app is: flash:/ 4210G.bin  
The main boot app is:  
The backup boot app is:  
flash:/ 4210G.bin  
flash:/ 4210Gbak.bin  
Step4 Restart the switch to make the updated host software and the Boot ROM file effective.  
<Sysname> reboot  
Before restarting the switch, make sure other configurations are all saved to avoid the loss of  
configuration information.  
After the steps above, the Boot ROM and host software loading is completed.  
Pay attention to the following points:  
z
z
Host software loading takes effect only after you restart the switch with the reboot command.  
If the space of the flash memory is not enough, you can delete the useless files in the flash memory  
before software downloading.  
z
Power interruption is not allowed during software loading.  
Loading Software Using TFTP  
The remote loading by using TFTP is similar to the remote loading by using FTP. The only difference is  
that it is TFTP that you use when loading software to the switch. In this case, the switch can only be  
used as a TFTP client.  
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6
Maintenance and Troubleshooting  
Software Loading Failure  
If software loading fails, the system keeps running in original version. In this case, check if the physical  
ports are properly connected.  
z
z
If the ports are not properly connected, reconnect them correctly and restart the loading procedure.  
If the ports are properly connected, check the loading procedure information displayed on the  
HyperTerminal for input errors. If there is any input error, restart the loading procedure with correct  
input.  
For example, when using XMODEM, verify that you have reset the baud rate of the HyperTerminal to  
19,200 bps after loading the software with a baud rate other than 19,200 bps; when using TFTP, verify  
that you have specified the correct server and switch IP addresses, the correct name of the software to  
be loaded and the correct working path of TFTP server; when using FTP, verify that you have specified  
the correct server and switch IP addresses, the correct name of the software to be loaded and the  
correct username and password.  
If software loading fails but there are neither physical connection problems nor input errors, please  
contact your agent for help. Missing Password  
Password Missing Failure  
Missing User Password  
If you have forgotten your user password, you can enter the 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):  
Select 7, and then restart the switch. After the switch is restarted, the user password is removed.  
Missing Boot ROM Password  
Please contact with your switch dealer.  
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Power Supply Failure  
The Switch 4210G use fixed power modules. Each of the Switch 4210G has three input modes, namely,  
AC input, RPS input and both.  
You can check whether the power system of the switch fails by viewing the system status LED (PWR)  
and RPS status LED (RPS) on the front panel of the switch. For details, refer to Table 6-1.  
Table 6-1 Fixed power module failure LEDs description  
LED  
Mark  
PWR  
Status  
Description  
The switch is powered off.  
System status  
LED  
Off  
The AC input is normal, and the RPS is in the position  
or works normally.  
Steady green  
RPS status  
LED (non-PoE  
switches)  
RPS  
RPS  
RPS input is normal, but AC input fails or AC input is  
not connected.  
Steady yellow  
Off  
RPS is not connected.  
Steady green The AC input and the RPS input work normally.  
RPS status  
LED (PoE  
switches)  
The RPS input is normal, but the AC input fails or AC  
input is not connected.  
Steady yellow  
Off  
RPS input is abnormal.  
AC input  
If the system status LED is off, an AC input failure occurs. Then do the following:  
z
Check whether the AC power cord is well connected to the switch, whether the AC receptacle on  
the switch and the AC power socket are faulty.  
z
z
Check whether the external AC power supply system is normal.  
Check whether the operating temperature of the switch is normal, and whether good ventilation is  
provided to the power supply (the power module may stop working and enter the protection state  
due to over-temperature).  
RPS input  
If the system status LED or RPS status LED is off, an RPS input failure occurs. Then do the following:  
z
z
z
Check whether the switch is well connected to the external RPS power supply.  
Check whether the external RPS power supply works normally.  
Check whether the operating temperature of the switch is normal, and whether good ventilation is  
provided to the power supply (the power module may stop working and enter the protection state  
due to over-temperature).  
RPS&AC input  
When the switch adopts both RPS and AC inputs , you can check the power supply status and the input  
status of each line by viewing the system status LED and RPS status LED.  
1) The system status LED is off.  
Both the AC input and RPS input are faulty. Then do the following:  
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z
Check whether the AC power cord is well connected to the switch, whether the AC receptacle on  
the switch and the AC power socket are faulty.  
z
z
z
z
Check whether the AC external power supply system is normal.  
Check whether the switch is well connected to the external RPS power supply.  
Check whether the external RPS power supply works normally.  
Check whether the operating temperature of the switch is normal, and whether good ventilation is  
provided to the power supply (the power module may stop working and enter the protection state  
due to over-temperature).  
2) The system status LED is on but the RPS status LED is steady yellow.  
An AC input failure occurs. Then do the following:  
z
Check whether the AC power cord is well connected to the switch, whether the AC receptacle on  
the switch and the AC power socket are faulty.  
z
Check whether the AC external power supply system is normal.  
3) The system status LED is on but the RPS status LED is off.  
An RPS input failure occurs. Then do the following:  
z
z
Check whether the switch is well connected to the external RPS power supply.  
Check whether the external RPS power supply works normally.  
If the cause cannot be located in the preceding steps and the problem persists, you need to contact  
your local sales agent or service engineer.  
Fan Failure  
You can check the system status LED and the seven-segment LED of an Switch 4210G to determine  
whether the fans operate normally. If a fan failure occurs, the two LEDs give an indication, as shown in  
Table 6-2 Fan failure LEDs description  
LED  
Mark  
State  
System status LED  
PWR  
Unit  
Steady red  
The LED flashes F for fan failure.  
Seven-segment LED  
Only when the system status LED is steady red and the seven-segment LED is displayed as F does it  
indicate a fan failure.  
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The Switch 4210G switches use fixed fans. If a fixed fan failure occurs, you cannot solve the problem by  
yourself. Please contact your sales agent or service engineer.  
To ensure the normal operation of the switch, you need to contact the local sales agent or service  
engineer as soon as possible when a fixed fan failure occurs.  
Configuration System Failure  
After the switch is powered on and the system is normal, the booting information will be displayed on the  
configuration terminal. If the configuration system has any faults, there will not be any screen display at  
the configuration terminal or the displayed characters will be totally illegible.  
Troubleshooting when there is no terminal display  
If there is no output information after the configuration is powered on, please check whether:  
z
z
The power supply is normal  
The console cable is properly connected  
If no problems are found after the above-mentioned items have been checked, the cause may lie in the  
console cable or the settings of the terminal (such as hyper terminal) parameters. Please perform the  
corresponding check.  
Troubleshooting when the terminal display is illegible  
If there is illegible display at the configuration terminal, the cause might lie in the parameter setting error  
at the terminal (such as HyperTerminal). Verify the following terminal parameter (such as hyper terminal)  
settings:  
z
z
z
z
z
z
Baud rate: 19,200  
Data bits: 8  
Parity: none  
Stop bits: 1  
Flow control: none  
Terminal emulation: VT100.  
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