SmartSwitch 9000
9E106-06
Ethernet Switch Module
User’s Guide
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 February 1998 by:
Cabletron Systems, Inc.
35 Industrial Way
Rochester, NH 03867-5005
All Rights Reserved
Printed in the United States of America
Order Number: 9031346-01 February 1998
SPECTRUM, Remote LANVIEW and LANVIEW are registered trademarks and SecureFast and
SmartSwitch are trademarks of Cabletron Systems, Inc.
Ethernet is a trademark of Xerox Corporation and i960 is a registered trademark of Intel Corporation.
i
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 equipment is in the 1st Class Category (information equipment to be used in commercial and/or
industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference
by Information Technology Equipment (VCCI) aimed at preventing radio interference in commercial
and/or industrial areas.
Consequently, when used in a residential area or in an adjacent area thereto, radio interference may be
caused to radios and TV receivers, etc.
Read the instructions for correct handling.
ii
Notice
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.
iii
Notice
iv
Contents
Chapter 1
Chapter 2
Introduction
Features........................................................................................................................... 1-2
Related Manuals............................................................................................................ 1-5
Getting Help .................................................................................................................. 1-5
Installing the 9E106-06 Module
Installing EPIMs............................................................................................................ 2-3
EPIM Revisions ...................................................................................................... 2-3
Installing the EPIM................................................................................................ 2-4
The Reset Switch ........................................................................................................... 2-5
User-Accessible Components...................................................................................... 2-6
Setting the Module Card DIP Switch ......................................................................... 2-7
Chapter 3
Operation
System Management Buses ......................................................................................... 3-2
SMB-1 Bus............................................................................................................... 3-2
SMB-10 Bus............................................................................................................. 3-2
System Diagnostic Controller...................................................................................... 3-2
DC/DC Converter ........................................................................................................ 3-3
FNB Interface................................................................................................................. 3-3
i960 Switch ..................................................................................................................... 3-3
i960 Host......................................................................................................................... 3-3
Chapter 4
Chapter 5
LANVIEW LEDs
Specifications
Technical Specifications................................................................................................ 5-1
CPU:......................................................................................................................... 5-1
Memory:.................................................................................................................. 5-1
Network Interfaces: ............................................................................................... 5-1
Safety............................................................................................................................... 5-1
Service............................................................................................................................. 5-2
Physical........................................................................................................................... 5-2
Dimensions: ............................................................................................................ 5-2
Weight:..................................................................................................................... 5-2
v
Contents
Appendix A EPIMs
EPIM-T...........................................................................................................................A-1
EPIM-F1 and EPIM-F2.................................................................................................A-2
EPIM-F3 .........................................................................................................................A-3
EPIM-C...........................................................................................................................A-4
Connector Type .....................................................................................................A-5
Grounding..............................................................................................................A-5
EPIM-A and EPIM-X (AUI Port)................................................................................A-5
vi
Chapter 1
Introduction
The 9E106-06 is a multi-port Ethernet Switch Module for the SmartSwitch 9000
that provides high speed IEEE 802.1D compliant bridging and SecureFast™
Switching (SFS).
®
Each 9E106-06 is equipped with two advanced Intel i960 RISC microprocessors.
One processor provides the module’s SNMP protocol stack for both IETF and
Enterprise MIB extensions. Additional higher-level management services such as
RMON and Distributed LAN Monitor (DLM) are also provided. The other
processor acts as the primary switching device, continually directing network
traffic to the appropriate destination interface.
The 9E106-06 module provides six user configurable front panel Ethernet Port
Interfaces Module (EPIM) connections and one backplane connection to the
SmartSwitch 9000 Flexible Network Bus (FNB). The FNB is a dual FDDI
backplane channel that allows for reliable, high-capacity communications
between all FNB modules. Users on all six Ethernet segments can access the hub’s
Flexible Network Bus (FNB) and communicate with users on any other FNB
based Ethernet, Token Ring, FDDI, ATM or WAN module. Since each FNB
module translates its native user’s data packets to FDDI frames, all modules can
communicate without the use of any external or additional bridge or router
components.
Each EPIM Port is a single network segment that can operate in one of two ways:
as a host to a single user or as a host to multiple users through another multiport
switch, bridge, or repeater device. Ethernet networks are connected to the
9E106-06 using standard Cabletron EPIMs.
The 9E106-06 also features front panel LANVIEW™ Diagnostic LEDs to offer
at-a-glance status information about each front panel port, as well as the
operation of the overall module.
1-1
Introduction
Features
Processors
®
The 9E106-06 is equipped with dual advanced Intel i960 RISC microprocessors.
One processor provides a platform for all management applications, such as
Spanning Tree, RMON, IETF and Enterprise MIB support. This network
management information is available through a variety of methods. All SNMP
based information is accessible either via an in-band (front panel port), side-band
(SMB-10), or out-of-band via the Environmental Module’s (EM) COM ports. For
more information on the EM’s COM ports or SMB-10 refer to the SmartSwitch
9000 Local Management User’s Guide. The other processor acts as the primary
switching device. This switching device can operate in two modes, as a traditional
bridge, or as a SecureFast Switch (SFS).
System Management
The 9E106-06 provides interfaces to the two System Management Buses (SMB-1
and SMB-10) for intermodule management. The SMB-1 Bus is only accessible to
modules. The SMB-10 Bus is accessible through the EPIM on the front of the
Environmental Module.
Management
The 9E106-06 provides local and remote management functions. Local
management is provided through the RS-232 COM ports on the SmartSwitch 9000
Environmental Module using a standard VT-220 terminal or equivalent, Serial
Line Interface Protocol (SLIP), or Point-to-Point Protocol (PPP).
Remote management is possible through Cabletron’s SPECTRUM or any SNMP
compliant management tool. Included as management features are the IETF
Standard Management Information Base (MIBs) RMON (RFC 1271), IETF MIB ll
(RFC 1213), IETF Bridge MIB (RFC 1493), FDDI 1512 with SMT 7.3 and a host of
other Cabletron enterprise MIBs. In addition, the front panel provides LEDs to
indicate LINK status per port, as well as transmit and receive activity.
Connectivity
The 9E106-06 module has six user configurable front panel Ethernet Port Interface
Module (EPIM) connections and one Flexible Network Bus (FNB) backplane
connection. Ethernet networks connect to the 9E106-06 module using standard
Cabletron EPIMs. EPIMs presently available include:
•
•
•
•
•
•
EPIM-C For Thin-net Coaxial
EPIM-T For 10Base-T Twisted Pair
EPIM-F1/EPIM-F2 For Multimode Fiber Optic
EPIM-F3 For Single Mode Fiber Optic
EPIM-A For AUI Cable segment
EPIM-X For AUI Cable segment
1-2
Introduction
The FNB backplane connection is a fixed connection to FNB-1 or FNB-2. This
connection allows the 9E106-06 to communicate with other SmartSwitch 9000
modules supporting various LAN technologies including: Token Ring, FDDI,
Ethernet, WAN and ATM.
Bridging/SecureFast™ Switching
9E106-06 operates in two modes, as a traditional bridge, or as a SecureFast Switch.
In the traditional bridge mode, the 9E106-06 makes filtering/forwarding
decisions based on frame destination address. In the SecureFast Switch mode,
filtering/forwarding decisions are made based on both frame destination and
source addresses.
Management Information Base (MIB) Support
The 9E106-06 provides MIB support including:
•
•
•
•
RMON (RFC 1271)
IETF MIB II (RFC 1213)
IETF Bridge MIB (RFC 1493)
FDDI 1512 with SMT 7.3 and a host of other Cabletron Enterprise MIBs.
NOTE
For a complete list of supported MIBs, refer to the release notes provided in the
9E106-06 package.
LANVIEW LEDs
The 9E106-06 uses 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 9E106-06 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.
1-3
Introduction
ETHERNET
9E106-06
SMB
FNB
CPU
Figure 1-1. The 9E106-06
1-4
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 Local Management User’s Guide
INB Terminator Modules Installation Guide
Getting Help
If you need additional support related to this device, or if you have any questions,
comments, or suggestions concerning this manual, 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 our products,
For technical support, select Service and Support.
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
1-5
Introduction
1-6
Chapter 2
Installing the 9E106-06 Module
The 9E106-06 Module may be installed in any of the 14 slots available in the
SmartSwitch 9000 chassis. To install the 9E106-06 Module, 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 jack for the ESD Wrist Strap
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 Technical Support
immediately.
6. Before installing the 9E106-06 Module into the chassis, ensure that the bottom
and top plastic tabs are unlocked. Slide the module into an available slot and
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
Installing the 9E106-06 Module
Installing EPIMs
This section contains procedures on how to add/replace an Ethernet Port
Interface 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
2-3
Installing the 9E106-06 Module
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
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
3. Install the mounting screw.
2-4
Installing the 9E106-06 Module
E
N
E
T
1
Mounting
Screw
E
N
E
T
2
EPIM
Figure 2-3. Installing an EPIM
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 resets the module.
Pressing and holding the switch on for three or more seconds causes the
module to shutdown. Pressing and holding the switch again for three seconds
restarts the module.
SNMP management may be used to disable this switch to enhance module
security.
2-5
Installing the 9E106-06 Module
Reset Switch
SMB
CPU
Figure 2-4. The Reset Switch
User-Accessible Components
Figure 2-5 shows the various components that are accessible to the user. These
consist of an eight-switch 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.
2-6
Installing the 9E106-06 Module
SMB-1
PROM
Dip
Switch
Boot
PROM
Local
DRAM
Socket
Packet
DRAM
Socket
Flash
SIMM
Socket
Figure 2-5. User-Accessible Components
Setting the Module Card DIP Switch
An eight-switch DIP switch is located on the module card, as shown in Figure 2-5
2-7
Installing the 9E106-06 Module
SMB-1
PROM
Boot
PROM
i 960
1
2
3
4
5
6
7
8
Figure 2-6. Location of Module DIP Switch
2-8
Installing the 9E106-06 Module
See the Cautions at the end of this table.
Table 2-2. Function of DIP Switch
Switch
8
Function
Clear
Description
This module stores user entered passwords in NVRAM
(Nonvolatile Random Access Memory). To clear these
passwords, toggle this switch and then reset the module’s
processor. Once the module resets, factory default passwords
are placed in NVRAM. You can use these default passwords
or, if desired, enter new passwords. To enter new passwords,
refer to the Module Local Management User’s Guide.
-1
Password
This module stores user entered parameters such as IP
addresses, subnet masks, default gateway, default interface,
SNMP traps, bridge configurations and module specific
configurations in NVRAM. To clear these parameters toggle
this switch and then reset the module’s processor. Once the
module resets, factory default parameters are placed in
NVRAM. You can use the default parameters or, if desired,
enter new parameters. To enter new parameters, refer to the
Module Local Management User’s Guide.
Clear
NVRAM
7
6
-2
This module uses BOOTP (Boot Strap Protocol) to download
new versions of the image file into Flash Memory. This
procedure forces image files to be downloaded from the PC
Force
BOOTP
Download or Workstation, configured to act as the BOOTP server,
connected to the EPIM port in the Environmental Module.
For Factory Use Only
For Factory Use Only
For Factory Use Only
For Factory Use Only
For Factory Use Only
5
4
3
2
1
Reserved
Reserved
Reserved
Reserved
Reserved
Caution: Do not toggle Switch 8 unless you intend to reset the user configured
passwords to the factory default settings.
!
CAUTION
Caution: Do not toggle Switch 7 unless you intend to reset the user parameters
to the factory default settings.
2-9
Installing the 9E106-06 Module
2-10
Chapter 3
Operation
The 9E106-06 module is a seven port device, six front panel ports, each
representing a separate Ethernet collision domain, and one backplane connection
to FNB-1 or FNB-2.
As shown in Figure 3-1, packets received through one of the six front panel
Ethernet ports and destined for another SmartSwitch 9000 module are translated
by the i960 Switch Processor into a FDDI frame format and then sent to FNB-1 or
FNB-2.
SMB-1
System
Diagnostic
Controller
SMB-10
Ethernet
Ethernet
DC/DC
Convertor
Six
Ethernet
Ethernet
Ethernet
Ethernet
Front
Panel
Ports
FNB-1
or
FNB-2
i960 Core
Processor
i960 Switch
Processor
Figure 3-1. Packet Flow
3-1
Operation
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 1Mbs management bus located within the SmartSwitch 9000. This
bus is utilized by all diagnostic controllers in the system, including 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 10Mbs management bus located within the SmartSwitch 9000
that 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.
System Diagnostic Controller
This diagnostic controller is composed of a Z-80 microprocessor and the
supporting logic. The diagnostic controller is designed to control the power-up
sequencing of modules, monitor the 9E106-06 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 others 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 9E106-06 has been designed so that in
the event of a diagnostic controller fault, the 9E106-06 continues to function.
3-2
Operation
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 monitors and 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 9E106-06 has one dual attachment
to the FNB backplane, connecting to either FNB-1 or FNB-2. The module can
insert into either the FNB-1 or FNB-2, or bypass both. 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 a FDDI
collapsed backbone.
i960 Switch
The i960 Switch Processor is the first of the dual i960 RISC microprocessors built
into the 9E106-06 Module. This processor provides the packet forwarding logic
and can be configured to run as a layer two bridge, or as a SecureFast switch.
i960 Host
The i960 Host Processor is the second of the dual i960 RISC microprocessors built
into the 9E106-06 Module. This processor provides the SNMP protocol stacks to
support industry standard MIBs. Additionally, Cabletron enterprise extension
MIBs are supported for each media type. Advanced management services, such
as the Distributed LAN Monitor, telnet and network address to MAC address
mapping, are provided by this i960 processor.
3-3
Operation
3-4
Chapter 4
LANVIEW LEDs
The front panel LANVIEW LEDs indicate the status of the module and may be
used as an aid in troubleshooting. The 9E106-06 LANVIEW LEDs are shown in
ETHERNET
9E106-06
Diagnostic
Controller Status
System Status
FNB Transmit
FNB Receive
SMB
FNB
CPU
Ethernet
Receive
Ethernet
Transmit
Figure 4-1. The LANVIEW LEDs
4-1
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
Testing
Fully operational.
Yellow
Normal, internal diagnostic testing being
done.
Yellow (Flashing)
Yellow/Green
Red
Crippled
Booting
Reset
Not fully operational (i.e., one bad port).
Blinks yellow and green while booting.
Normal power-up reset.
Red (Flashing)
Off
Failed
Fatal error has occurred.
Power off
Module powered off.
Table 4-2. FNB Receive LEDs
LED Color
State
Yellow (Flashing) Activity (Flashing rate indicates rate of activity.)
Off No activity
Table 4-3. FNB Transmit LEDs
LED Color
State
Green (Flashing) Activity (Flashing rate indicates rate of activity.)
Off No activity
4-2
LANVIEW LEDs
Table 4-4. Ethernet Receive LEDs
LED Color
State
Green
Link, No activity
Yellow (Flashing) Link, Activity (Flashing rate indicates rate of activity.)
Red
Red (Flashing)
Off
Port disabled no link
Port disabled with link
No link, No activity
Table 4-5. Ethernet Transmit LEDs
LED Color
Green (Flashing)
Yellow (Flashing)
Red
State
Activity (Flashing rate indicates rate of activity)
Port in standby state
Port disabled
Red (Flashing)
Off
Collision
No activity
4-3
LANVIEW LEDs
4-4
Chapter 5
Specifications
Technical Specifications
CPU:
Dual Intel i960 RISC based microprocessors
Memory:
8 Meg. Local DRAM (expandable to 12 Meg.)
2 Meg. Flash Memory (expandable to 14 Meg.)
4 Meg. Shared DRAM (expandable to 12 Meg.)
Network Interfaces:
Cabletron EPIMs
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
5-1
Specifications
This equipment meets:
The safety requirements of:
•
•
•
•
UL 1950
CSA C22.2 No. 950
EN 60950
IEC 950
The EMI Requirements of:
•
•
•
FCC Part 15 Class A
EN 55022 Class A
VCCI Class I
The immunity requirements of:
•
•
•
•
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
Physical
Dimensions:
35.0 D x 44.0 H x 3.0 W centimeters
(13.8D x 17.4H x 1.2 W inches)
Weight:
Unit:
Shipping:
1.36 kg. (3lb)
1.81 kg. (4lb)
5-2
Appendix A
EPIMs
The 9E106-06 Ethernet Switching Module provides one port per channel for
Cabletron Systems EPIMs. EPIMs allow connecting to the 9E106-06 using
different media types. Cabletron Systems offers a variety of EPIMs whose
specifications are explained in the following sections.
NOTE
Verify that the EPIM is the proper revision before installing it. See Installing the
EPIM on page 2-4 for details.
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.
Position X
(crossed over)
1. RX+
2. RX-
3. TX+
4. NC
5. NC
6. TX-
7. NC
8. NC
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
A-1
EPIMs
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
The link distance is up to 2 kilometers on the multimode fiber-optic cable as
specified by ANSI MMF-PMD.
Figure A-2. EPIM-F1 and EPIM-F2
Table A-1. EPIM Specifications
Worst
Case
Worst Case
Budget
Typical
Budget
Parameter
Typical Value
Receive
Sensitivity
-30.5 dBm
-28.0 dBm
-8.2 dBm
—
—
—
—
Peak Input
Power
-7.6 dBm
A-2
EPIM-F3
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
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.
Figure A-3. EPIM-F3
A-3
EPIMs
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
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.
A-4
EPIM-A and EPIM-X (AUI Port)
The link distance is up to 185 meters on the thin-net coaxial cables.
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.
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.
A-5
EPIMs
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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