Notice
Notice
Cabletron Systems reserves the right to make changes in specifications and other information
contained in this document without prior notice. The reader should in all cases consult Cabletron
Systems to determine whether any such changes have been made.
The hardware, firmware, or software described in this manual is subject to change without notice.
IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL, INDIRECT,
SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT NOT LIMITED
TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION
CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF, KNOWN, OR
SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH DAMAGES.
© Copyright April 1998 by:
Cabletron Systems, Inc.
35 Industrial Way
Rochester, NH 03867-5005
All Rights Reserved
Printed in the United States of America
Order Number: 9031173-02
LANVIEW is a registered trademark, and SmartSwitch is a trademark of Cabletron Systems, Inc.
CompuServe is a registered trademark of CompuServe, Inc.
i960 microprocessor is a registered trademark of Intel Corp.
Ethernet is a trademark of Xerox Corporation.
i
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Notice
FCC Notice
This device complies with Part 15 of the FCC rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial environment.
This equipment uses, generates, and can radiate radio frequency energy and if not installed in
accordance with the operator’s manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause interference in which case the user
will be required to correct the interference at his own expense.
WARNING: Changes or modifications made to this device which are not expressly approved by the
party responsible for compliance could void the user’s authority to operate the equipment.
VCCI Notice
This is a Class A product based on the standard of the Voluntary Control Council for Interference by
Information Technology Equipment (VCCI). If this equipment is used in a domestic environment,
radio disturbance may arise. When such trouble occurs, the user may be required to take corrective
actions.
DOC Notice
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital
apparatus set out in the Radio Interference Regulations of the Canadian Department of
Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables
aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique
édicté par le ministère des Communications du Canada.
ii
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Notice
DECLARATION OF CONFORMITY
ADDENDUM
Application of Council Directive(s):
89/336/EEC
73/23/EEC
Manufacturer’s Name:
Manufacturer’s Address:
Cabletron Systems, Inc.
35 Industrial Way
PO Box 5005
Rochester, NH 03867
European Representative Name:
European Representative Address:
Mr. J. Solari
Cabletron Systems Limited
Nexus House, Newbury Business Park
London Road, Newbury
Berkshire RG13 2PZ, England
Conformance to Directive(s)/Product Standards:
Equipment Type/Environment:
EC Directive 89/336/EEC
EC Directive 73/23/EEC
EN 55022
EN 50082-1
EN 60950
Networking Equipment, for use in a
Commercial or Light
Industrial Environment.
We the undersigned, hereby declare, under our sole responsibility, that the equipment packaged with
this notice conforms to the above directives.
Manufacturer
Legal Representative in Europe
Mr. Ronald Fotino
____________________________________________________
Mr. J. Solari
______________________________________________________
Full Name
Full Name
Principal Compliance Engineer
____________________________________________________
Managing Director - E.M.E.A.
______________________________________________________
Title
Title
Rochester, NH, USA
____________________________________________________
Newbury, Berkshire, England
______________________________________________________
Location
Location
iii
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Notice
iv
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Contents
Chapter 1
Chapter 2
Introduction
Related Manuals............................................................................................................ 1-4
Getting Help .................................................................................................................. 1-4
Chapter 3
Flexible Network Bus (FNB)........................................................................................ 3-2
System Management Buses ......................................................................................... 3-2
SMB-1 Bus ............................................................................................................... 3-2
SMB-10 Bus ............................................................................................................. 3-2
FNB Interface ................................................................................................................. 3-3
i960 Core......................................................................................................................... 3-4
Chapter 4
Chapter 5
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Contents
Connector Type .....................................................................................................A-5
EPIM-A and EPIM-X (AUI Port)................................................................................A-5
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Chapter 1
Introduction
The 9E132-15, 9E133-36, 9E138-12, and 9E138-36 MicroLAN™ Switch Modules,
front panel Ethernet networks can be connected to this module and they can be
bridged/ routed to any other Ethernet segment and to any other SmartSwitch
9000 module via the FNB bus (acting as the fourth port).
Features
The 9E132-15, 9E133-36, 9E138-12, and 9E138-36 MicroLAN™ Modules will
be referred to collectively as the Ethernet MicroLan Modules.
NOTE
Processor
The Ethernet MicroLan Switch Modules are equipped with an advanced Intel i960
microprocessor. This microprocessor provides a platform for all management
functions within a scalable RISC-based architecture.
System Management
The Ethernet MicroLan Switch Modules provide interfaces to the two System
Management Buses (SMB-1 and SMB-10) for intermodule management.
Connectivity
The 9E132-15 provides four RJ-45 ports and one EPIM slot for each of the three
channels. See Chapter 5 for information on the use of EPIMs.
The 9E133-36 has one 50-pin front panel for each of the three channels, providing
12 individual Ethernet connections each.
The 9E138-12 provides four ST-type multi-mode fiber optic connections for each
of the three channels, for a total of 12 connections.
1-1
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Introduction
The 9E138-36 provides 12 ST-type multi-mode fiber optic connections for each of
the three channels, for a total of 36 connections.
All ports function as repeaters for incoming data which retime and retransmit all
packets.
Bridging/Routing
The Ethernet MicroLan Switch Modules provide Bridging/ Routing between the
front panel channels and/ or to any other module in the chassis via FNB -1 or
FNB -2 of the FNB bus. IEEE 802.1d Spanning Tree Protocol is supported in all
bridging functions.
Management Information Base (MIB) Support
All concentrator modules provide MIB support including the following:
•
•
•
IETF FDDI MIB
IETF MIB II
Cabletron Enterprise MIBs
For a complete list of supported MIBs, refer to the release notes provided in the
module package.
NOTE
RMON
RMON support (RFC1271).
LANVIEW LEDs
The Ethernet MicroLan Switch Modules use LANVIEW: the Cabletron Systems
built-in visual diagnostic and status monitoring system. With LANVIEW LEDs,
you can quickly identify the device, port, and physical layer status at a glance.
Hot Swapping
The Ethernet MicroLan Switch Modules can be installed or removed from the
chassis while the SmartSwitch 9000 is powered up without affecting the operation
of the remaining modules in the chassis.
1-2
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Introduction
ETHERNET
9E138-36
ETHERNET
9E138-12
ETHERNET
9E132-15
ETHERNET
9E133-36
SMB
FNB
CPU
SMB
FNB
CPU
SMB
FNB
CPU
SMB
CPU
FNB
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
4
5
1
2
3
4
5
6
7
8
9
ENET 1
ENET 1
ENET 2
ENET 3
ENET 1
ENET 1
ENET 2
ENET 3
1
2
3
4
1
2
3
4
5
6
7
8
9
11
12
10
ENET 2
ENET 3
ENET 2
ENET 3
1
2
3
4
1
2
3
4
5
6
7
8
9
11
12
10
1
2
3
4
1
2
3
4
5
6
7
8
9
11
12
10
10
11
12
ETHERNET 1
ETHERNET 1
RX
RX
RX
RX
1
1
5
9
E
T
12
TX
TX
TX
TX
H
E
R
N
E
T
RX
RX
RX
RX
2
2
6
10
E
T
2X
3X
4X
5X
TX
RX
TX
RX
TX
TX
RX
H
E
R
N
E
T
RX
1
3
3
7
11
TX
TX
TX
TX
RX
RX
RX
RX
1
4
4
8
12
TX
TX
TX
TX
1
ETHERNET 2
ETHERNET 2
RX
RX
RX
RX
1
1
5
9
12
E
T
TX
TX
TX
TX
RX
RX
RX
RX
H
E
R
N
E
T
E
T
2
2
6
10
H
E
R
N
E
T
2X
3X
4X
5X
TX
RX
TX
RX
TX
TX
RX
RX
3
3
7
11
2
TX
TX
TX
TX
RX
RX
RX
RX
2
4
4
8
12
TX
TX
TX
TX
1
ETHERNET 3
ETHERNET 3
RX
RX
RX
RX
12
1
1
5
9
TX
TX
TX
TX
E
T
RX
RX
RX
RX
E
T
H
E
R
N
E
T
2
2
6
10
H
E
R
N
E
T
TX
RX
TX
RX
TX
TX
RX
2X
3X
4X
5X
RX
3
3
7
11
3
TX
TX
TX
TX
3
RX
RX
RX
RX
4
4
8
12
1
TX
TX
TX
TX
Figure 1-1. The Ethernet MicroLan Switch Modules
1-3
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Introduction
Related Manuals
The manuals listed below should be used to supplement the procedures and
technical data contained in this manual.
SmartSwitch 9000 Installation Guide
SmartSwitch 9000 Operations Guide
SmartSwitch 9000 9C300-1 Environmental Module User’s Guide
SmartSwitch 9000 9C214-1 AC Power Supply User’s Guide
SmartSwitch 9000 Module Local Management User’s Guide
Getting Help
For additional support related to this device or document, contact the Cabletron Systems Global Call
Center:
Phone
(603) 332-9400
Internet mail
FTP
ctron.com (134.141.197.25)
anonymous
Login
Password
your email address
BBS
(603) 335-3358
Modem setting
8N1: 8 data bits, No parity, 1 stop bit
For additional information about Cabletron Systems or its products, visit the
For technical support, select Service and Support.
To send comments or suggestions concerning this document, contact the
Cabletron Systems Technical Writing Department via the following
Make sure to include the document Part Number in the email message.
Before calling the Cabletron Systems Global Call Center, have the following information ready:
•
•
•
Your Cabletron Systems service contract number
A description of the failure
A description of any action(s) already taken to resolve the problem (e.g., changing mode switches,
rebooting the unit, etc.)
•
The serial and revision numbers of all involved Cabletron Systems products in the network
A description of your network environment (layout, cable type, etc.)
•
•
Network load and frame size at the time of trouble (if known)
•
The device history (i.e., have you returned the device before, is this a recurring problem, etc.)
Any previous Return Material Authorization (RMA) numbers
•
1-4
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Chapter 2
Installing the Modules
The SmartSwitch 9000 module may be installed into any of the 14 slots that are
available. To install, follow the steps below:
1. Remove the blank panel covering the slot that the module is being mounted
in. All other slots must be covered, if modules are not being installed, to
ensure proper airflow and cooling.
2. Carefully remove the module from the shipping box. (Save the box and
packing materials in the event the module must be reshipped.)
3. Attach one end of the ESD wrist strap packaged with the SmartSwitch 9000
chassis to your wrist. Plug the other end into the ESD Wrist Strap Grounding
receptacle in the lower right corner of the SmartSwitch 9000 Chassis shown in
Figure 1.
4. Remove the module from the plastic bag. Observe all precautions to prevent
damage from Electrostatic Discharge (ESD).
5. Carefully examine the module, checking for damage. If any damage exists,
DO NOT install the module. Contact Cabletron Systems Global Call Center
immediately.
6. Before installing the SmartSwitch 9000 cards into the chassis, ensure that the
bottom and top plastic tabs are unlocked. Slide the card into an available slot
and ensure that the circuit card is between the card guides, as shown in Figure
1. Check both the upper and lower tracks. Take care that the module slides in
straight and engages the backplane connectors properly. Lock down the top
and bottom plastic tabs at the same time, applying even pressure.
2-1
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Installing the Modules
Plastic Tab
Jack for ESD
Wrist Strap
Metal Back-Panel
Module
Module Guides
Warning:
Ensure that the circuit card is between the card
guides.
Lock down the top and bottom plastic tabs
at the same time, applying even pressure.
Figure 2-1. Installing the Module
2-2
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Installing the Modules
Installing EPIMs
This section contains procedures on how to add/ replace an Ethernet Port
MicroLAN Module (EPIM). After installing the EPIM, refer to Appendix A to
verify proper EPIM operation.
Observe all static precautions while handling EPIMs.
!
CAUTION
EPIM Revisions
Revision numbers are located on the EPIM’s Printed Circuit Board directly
board revision for each EPIM.
EPIM Board Revision
CABLETRON SYSTEMS INC. PN 9000474 - 04
EPIM-T
Figure 2-2. Location of Revision Number
Table 2-1. EPIM Board Revisions
EPIM
EPIM BOARD REVISION
EPIM-T
EPIM-F2
EPIM-F1
EPIM-F3
EPIM-C
EPIM-A
EPIM-X
04 or greater
05 or greater
05 or greater
02 or greater
05 or greater
Not Applicable
02 or greater
2-3
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Installing the Modules
Installing the EPIM
To install an EPIM:
When removing an EPIM, make sure to pull the module straight out so as not to
damage the connector.
NOTE
1. Remove the coverplate or the EPIM (whichever applies).
2. Slide your new EPIM into place, making sure the connectors on the rear of the
module and inside the HUB attach properly. Refer to Figure 2-3.
3. Install the mounting screw.
Mounting
Screw
EPIM
Figure 2-3. Installing an EPIM
2-4
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Installing the Modules
The Reset Switch
The Reset switch is located on the front panel, under the top plastic tab, as shown
•
•
Pressing the Reset switch twice within three seconds causes the processor
(i960) to reset.
Pressing and holding the switch on for three or more seconds causes the
module to shutdown. Pressing and holding again for three seconds restarts the
module.
SNMP management may be used to disable this switch to enhance module
security.
Reset Switch
SMB
CPU
Figure 2-4. The Reset Switch
2-5
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Installing the Modules
User-Accessible Components
Figure 2-5 shows the various components that are accessible to the user. These
consist of an eight-position dip switch (explained in the next section), replaceable
PROMs and sockets for RAM. These will be used for future upgrades.
Instructions for installing the components will be supplied with the upgrade kit.
SMB-1
PROM
Shared DRAM
Socket
Local DRAM
Socket
i960
Processor
Boot PROM
Flash SIMM
Socket
DIP Switch
Figure 2-5. User-Accessible Components
2-6
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Installing the Modules
See the Cautions at the end of this table.
Table 2-2. Function of DIP Switch
Switch
Function
Description
When toggled, this switch clears user-entered
passwords stored in NVRAM and restores the
default passwords. Once reset you can use the
defaults or enter new passwords.
Clear
Password
8
1
The module uses NVRAM to store user-
entered parameters such as IP addresses,
device name, etc. To reset these parameters to
the factory defaults, toggle this switch. Once
reset you can use the defaults or enter new
parameters, which are stored in NVRAM
when the module is powered down, and
remain there until the switch is toggled again.
Clear
NVRAM
7
6
2
Toggling this switch after pulling the board out
of the SmartSwitch 9000 clears download
information from NVRAM and forces image
files to be downloaded from the station
configured to act as that module’s BootP server
(connected to the EPIM on the Environmental
Module).
Force BootP
Download
3
Off - Factory Use Only
Off - Factory Use Only
Off - Factory Use Only
Off - Factory Use Only
Off - Factory Use Only
5
4
3
2
1
Reserved
Reserved
Reserved
Reserved
Reserved
1
Caution: Do not toggle Switch 8 unless you intend to reset the user configured
passwords to their factory default settings.
!
CAUTION
2
Caution: Do not toggle Switch 7 unless you intend to reset the user parameters
to the factory default settings.
3
Caution: Do not toggle switch 6 unless a bootp server is connected to the EPIM
of the Environmental Module.
2-8
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Chapter 3
Operation
The Ethernet MicroLan Switch Modules provide connectivity between four
interfaces: the three front panel Ethernet and the FDDI rings on the backplane
(FNB-1 or FNB-2).
SmartSwitch 9000 modules connect to either the Internal Network Bus (INB) or
the Flexible Network Bus (FNB) bus. The Ethernet MicroLan Switch Modules
panel contains three Ethernet connections that interface to the Repeater Interface
Controllers (RIC). These function as individual repeating networks; each 12 port
group is a separate collision domain. Front panel Ethernet packets are received
via the RIC. Bridging/ Routing may occur between these RICs and/ or to any
other SmartSwitch 9000 module via the Flexible Network Bus.
DC/DC
Converter
SMB-1
System
Diagnostic
Controller
SMB-10
RIC
RIC
FNB-1 or
FNB-2
i960 PLUS Core
RIC
Figure 3-1. Ethernet MicroLan Switch Modules Block Diagram
3-1
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Operation
Flexible Network Bus (FNB)
The FNB consists of two dual FDDI networks, the FNB-1 and FNB-2, providing
up to 400 Mbps of data bandwidth. These FDDI networks are 100% ANSI FDDI-
compliant, supporting SMT (version 7.3), MAC, PHY, and PMD standards. This
allows the FNB to traverse multiple SmartSwitch 9000 hubs, or connect to any
ANSI FDDI-compliant device, through standard A/ B port connections.
System Management Buses
There are two management channels within the SmartSwitch 9000 system: the
SMB-1 and the SMB-10. These buses provide out-of-band management and inter-
module management communication.
SMB-1 Bus
The SMB-1 is a 1 Mbps management bus located within the SmartSwitch 9000.
This bus is utilized by all diagnostic controllers in the system. These include
connectivity modules, power supply modules, and the environmental module.
The SMB-1 transports inter-chassis information between system components,
such as power and environmental information, as well as diagnostic messages.
Periodic
loop-back tests are performed by all modules that share this bus to ensure the
validity of SMB-1. In the event a failure is detected on SMB-1, the SMB-10 may be
used as an alternate communication channel.
SMB-10 Bus
The SMB-10 is a 10 Mbps management bus located within the SmartSwitch 9000,
which is also used for inter-chassis communication of modules as well as serving
as an out-of-band management channel into the SmartSwitch 9000. The SMB-10 is
externalized from the chassis via an optional Ethernet Port Interface Module
(EPIM) located on the front of the Environmental Module. Through an EPIM
connection, full SNMP management of the SmartSwitch 9000 is available out-of-
band from user data. Modules which share the SMB-10 bus periodically send out
loop-back packets to ensure the validity of SMB-10. In the event a fault is detected
on the SMB-10, the SMB-1 can be used as an alternate communication channel by
the modules. Non-runtime downloads and BootP downloads also utilize the
SMB-10 bus.
3-2
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Operation
System Diagnostic Controller
This diagnostic controller is composed of a Z-80 microprocessor and its
supporting logic. The diagnostic controller is designed to control the power-up
sequencing of modules, monitor the Ethernet MicroLan Switch Modules input
and output power parameters, keep watch over the main host processor, as well
as monitor the temperature and control the SMB LANVIEW diagnostic LED.
Although the diagnostic controller and the main host processor can operate
independently of each other if needed, they exchange information about each
other’s status and overall module condition. The information gathered by the
diagnostic controller is available to the network manager via local/ remote
management and the LCD located on the Environmental Module. The Ethernet
MicroLan Switch Modules have been designed so that in the event of a diagnostic
controller fault, the modules will continue to function.
DC/DC Converter
The DC/ DC converter converts the 48 VDC on the system power bus to the
necessary operating voltages for its host network services module. The diagnostic
controller controls the operation of the DC/ DC converter.
FNB Interface
SmartSwitch 9000 modules are designed with one of two attachment policies. One
allows dual attachment of a module to either FNB-1 or FNB-2; the second allows
dual attachment to both FNB-1 and FNB-2. The Ethernet MicroLan Switch
Modules have one dual attachment to the FNB backplane, connecting to either
FNB-1 or FNB-2. The module can insert into the FNB or bypass it. These flexible
configuration options make the SmartSwitch 9000 ideal for networks designed to
Bridge/ Route multiple lower speed LANs to FDDI and/ or networks designed
using an FDDI collapsed backbone.
3-3
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Operation
i960 Core
The i960 core in the FNB module serves two major functions: it provides the
packet forwarding logic and performs all network management services. FNB
modules can be configured to run as layer 2 bridges, layer 3 routers, or as Fast
Packet Switches. It is possible to run the bridging and routing options
concurrently, but the SFPS option cannot run with bridging and routing.
The i960 core provides the SNMP protocol stacks, as well as support for industry
standard MIBs. Additionally, Cabletron enterprise extension MIBs are supported
for each media type. Advanced management services, such as the Distributed
LAN Monitor, RMON, telnet, and network address to MAC address mapping, are
also provided by the i960 core.
3-4
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Chapter 4
LANVIEW LEDs
module and may be used as an aid in troubleshooting.
ETHERNET
System Status
FNB Receive
FNB Transmit
SMB
CPU
FNB
Ethernet Receive
Ethernet Transmit
1
2
3
1
2
3
4
5
Link (9E132-15
and 9E133-36)
ENET
1
1
2
3
4
Link (9E138-12
and 9E138-36)
Figure 4-1. LANVIEW LEDs
4-1
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LANVIEW LEDs
The functions of the System Management Bus (SMB) and CPU LEDs are listed in
Table 4-1. SMB and CPU LEDs
LED Color
State
Description
Green
Functional
Crippled
Booting
Reset
Fully operational.
Yellow
Not fully operational (i.e., one bad port).
Blinks yellow and green while booting.
Normal power-up reset.
Yellow/ Green
Red
Red (Flashing)
Off
Failed
Fatal error has occurred.
Power off
Module powered off.
The function of the FNB Receive LED is listed in Table 4-2.
Table 4-2. FNB Receive LED
LED Color
State
Yellow (Flashing)
Off
Activity (Flashing rate indicates rate of activity).
No activity
The function of the FNB Transmit LED is listed in Table 4-3.
Table 4-3. FNB Transmit LED
LED Color
State
Green (Flashing)
Off
Activity (Flashing rate indicates rate of activity).
No activity
4-2
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LANVIEW LEDs
The functions of the Ethernet Receive LEDs are listed in Table 4-4.
Table 4-4. Ethernet Receive LEDs
LED Color
Green
State
Link, No activity
Yellow (Flashing)
Link, Activity (Flashing rate indicates rate of
activity)
Off
No link, No activity
The functions of the Ethernet Transmit LEDs are listed in Table 4-5.
Table 4-5. Ethernet Transmit LEDs
LED Color
State
Green (Flashing)
Yellow (Flashing)
Off
Activity (Flashing rate indicates rate of activity)
Port in standby state
No activity
The function of the Link LEDs is listed in Table 4-6.
Table 4-6. Link LEDs
LED Color
State
Green
Off
Link
No link
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LANVIEW LEDs
4-4
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Chapter 5
Specifications
Safety
It is the responsibility of the person who sells the system to which the module will
be a part to ensure that the total system meets allowed limits of conducted and
radiated emissions.
!
CAUTION
This equipment meets the following safety requirements:
•
•
•
•
•
•
•
•
UL 1950
CSA C22.2 No. 950
EN 60950
IEC 950
EMI Requirements of FCC Part 15 Class A
EN 55022 Class A
VCCI Class I
EMC the following requirements:
EN 50082-1
IEC 801-2 ESD
IEC 801-3 Radiated susceptibility
IEC 801-4 EFT
Service
MTBF (MHBK-217E):
>200,000 hrs.
<0.5 hr.
MTTR:
5-1
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Specifications
Physical
Dimensions
All except 9E138-36:
35.0 D x 44.0 H x 3.0 W centimeters
(13.8 D x 17.4 H x 1.2 W inches)
9E138-36:
35.0 D x 44.0 H x 6.0 W centimeters
(13.8D x 17.4H x 2.4W inches)
Weight
All except 9E138-36:
Unit:
Shipping:
1.36 kg. (3 lb)
1.81 kg. (4 lb)
9E138-36:
Unit:
Shipping:
2.7kgs. (6lb)
3.6kgs. (8lb)
Environment
Operating Temperature 5 to 40° C
Storage Temperature
Relative Humidity
-30 to 90° C
5% to 95% non-condensing
5-2
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Appendix A
EPIMs
The 9E132-15 MicroLAN Switch Extension Module provides one port per channel
for Cabletron Systems EPIMs. EPIMs allow connecting to the 9E132-15 using
different media types. Cabletron Systems offers a variety of EPIMs whose
specifications are explained in the following sections.
Verify that the EPIM is the proper revision before installing. See Installing the
NOTE
EPIM-T
The EPIM-T is an RJ-45 connector supporting UTP cabling. It has an internal
Cabletron Systems TPT-T™ 10BASE-T Twisted Pair Transceiver.
The slide switch on the EPIM-T determines the crossover status of the cable pairs.
If the switch is on the X side, the pairs are internally crossed over. If the switch is
pinouts for the EPIM-T in both crossover positions.
The link distance is up to 100 meters on unshielded twisted pair cable as specified
by ANSI TP-PMD.
A-1
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EPIMs
Position X
(crossed over)
1. RX+
2. RX-
3. TX+
4. NC
5. NC
6. TX-
7. NC
8. NC
LNK
EPIM-T
Position =
(not crossed over)
1. TX+
2. TX-
3. RX+
4. NC
5. NC
6. RX-
7. NC
8. NC
Figure A-1. EPIM-T Pinouts
EPIM-F1 and EPIM-F2
The EPIM-F1 and EPIM-F2 support Multimode Fiber Optic cabling. Each EPIM
has an internal Cabletron Systems FOT-F™ Fiber Optic Transceiver. The EPIM-F1
is equipped with SMA Connectors and the EPIM-F2 is equipped with ST
in Table A-1.
The link distance is up to 2 kilometers on the multimode fiber-optic cable as
specified by ANSI MMF-PMD.
TX
RX
LNK
LNK
TX
RX
EPIM-F1/F2
EPIM-F1/F2
Figure A-2. EPIM-F1 and EPIM-F2
A-2
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EPIM-F3
Table A-1. EPIM-F1 and EPIM-F2 Specifications
Worst
Case
Worst Case
Budget
Typical
Budget
Parameter
Typical Value
Receive Sensitivity
Peak Input Power
-30.5 dBm
-7.6 dBm
-28.0 dBm
-8.2 dBm
—
—
—
—
Transmitter power parameters are listed Table A-2.
Table A-2. Transmitter Power Parameters
Worst
Case
Worst Case
Budget
Typical
Budget
Parameter
Typical Value
50/ 125 µm fiber
62.5/ 125 µm fiber
100/ 140 µm fiber
Error Rate
-13.0 dBm
-10.0 dBm
-15.0 dBm
-12.0 dBm
-9.0 dBm
13.0 dB
16.0 dB
19.0 dB
17.5 dB
20.5 dB
23.5 dB
-7.0 dBm
Better than 10 -10
The transmitter power levels and receive sensitivity levels listed are Peak Power
Levels after optical overshoot. A Peak Power Meter must be used to correctly
compare the values given above to those measured on any particular port. If
Power Levels are being measured with an Average Power Meter, then 3 dBm must
be added to the measurement to correctly compare those measured values to the
values listed (i.e., -30.5 dBm peak = -33.5 dBm average).
NOTE
EPIM-F3
The EPIM-F3 supports Single Mode Fiber Optic cabling. It has an internal
Cabletron Systems FOT-F™ Fiber Optic Transceiver and is equipped with ST
listed in Table A-3.
The link distance is up to 40 kilometers (max) and 25 kilometers (typical) on
single mode fiber-optic cable as specified by ANSI SMF-PMD.
A-3
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EPIMs
TX
RX
LNK
EPIM-F3
Figure A-3. EPIM-F3
Transmitter Power decreases as temperatures rise and increases as temperatures
fall. Use the Output Power Coefficient to calculate increased or decreased power
output for your operating environment. For example, the typical power output at
25°C is -16.4 dBm. For a 4°C temperature increase, multiply the typical
coefficient (-0.15 dBm) by four and add the result to typical output power (4 x -
0.15 dBm + -16.4 = -17.0).
NOTE
Table A-3. EPIM-F3 Specifications
Parameter
Typical
Minimum
Maximum
Transmitter Peak Wave Length
Spectral Width
Rise Time
1300 nm
60 nm
1270 nm
-
1330 nm
100 nm
5.0 nsec
5.0 nsec
50.7%
3.0 nsec
2.7 nsec
2.2 nsec
49.6%
Fall Time
2.5 nsec
Duty Cycle
50.1%
Bit Error Rate
Better than 10-10
The transmitter power levels given above are Peak Power Levels after optical
overshoot. You must use a Peak Power Meter to correctly compare the values
given above to those measured on any particular port. If you are measuring power
levels with an Average Power Meter, add 3 dBm to the average power
measurement to correctly compare the average power values measured to the
values listed above (i.e., -33.5 dBm average + 3 dB = -30.5 dBm peak).
NOTE
A-4
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EPIM-C
EPIM-C
The EPIM-C supports thin-net coaxial cabling and is equipped with an internal
Cabletron Systems TMS-3™ Transceiver. You can use the TERM switch on the
front of the EPIM-C to set the internal 50-ohm terminator. This eliminates the
need to connect the port to a tee-connector and terminator. Figure A-4 shows the
setting for the terminator switch.
The link distance is up to 185 meters on the thin-net coaxial cables.
TERM
EPIM-C
Internal Termination Switch
= On (internally terminated)
= Off (need external termination)
Figure A-4. EPIM-C
Connector Type
This connector type is a BNC receptacle, with gold center contact, for use with
BNC type tee-connectors and RG-58 thin-net cable.
Grounding
For safety reasons, only one end of a thin-net segment should be connected to
earth ground. Connection to earth ground at more than one point on the segment
may cause dangerous ground currents.
The BNC port of the Coaxial Interface Modules is not connected to earth ground.
EPIM-A and EPIM-X (AUI Port)
The EPIM-A is a DB-15 female connector used to attach segments to an external
transceiver. The EPIM-X is equipped with dual internal transceivers. It has a DB15
male connector used to attach segments to an AUI cable. Figure A-5 shows both
modules.
A-5
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EPIMs
The AUI Cable must not exceed 50 meters in length. If 28 AWG thin office drop
AUI cable is used, then the maximum cable length is limited to 15.24 meters.
PWR
SQE
EPIM-X
EPIM-A
Figure A-5. The EPIM-A and EPIM-X
Table A-4. DB-15 Pinouts
Pin Number
Represents
Pin Number
Represents
1
2
3
4
5
6
7
9
Logic Ref.
Collision +
Transmit
10
Transmit -
Logic Ref.
11
12
Receive -
Logic Ref.
13
Power (+12Vdc)
Logic Ref.
Receive
14
15
Power Return
No Connection
Collision -
No Connection
Positive Ground
Connector Shell
A-6
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