Cabletron Systems TPXMIM-20 User manual

TPXMIM
INSTALLATION
GUIDE
CABLETRON SYSTEMS, P.O. Box 5005, Rochester, NH 03867-0505
TPXMIM-22
10BASE-T
ETHERNET
E
P
I
M
SN
2
X
3
X
4
X
11
12
13
14
15
16
17
18
19
20
21
22
ETHERNET A B C
17
X
18
X
19
X
20
X
21
X
22
X
11
X
12
X
13
X
14
X
15
X
16
X
5
X
6
X
7
X
8
X
9
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10
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RCV LNK
RCV LNK RCV LNK1
2
3
4
5
6
7
8
9
10
CLN
TPXMIM-20
10BASE-T
ETHERNET
E
P
I
M
SN
2
X
3
X
4
X
ETHERNET A B C
5
X
6
X
7
X
8
X
9
X
10
X
RCV LNK RCV LNK1
2
3
4
5
6
7
8
9
10
CLN
SN
TPXMIM-34
10BASE-T
ETHERNET
E
P
I
M
12
1
24
13
ETHERNET A B C
CLN
1
2
3
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9
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11
12
RCV LNK
13
14
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RCV LNK
SN
TPXMIM-33
10BASE-T
ETHERNET
12
1
ETHERNET A B C
CLN
1
2
3
4
5
6
7
8
9
10
11
12
RCV LNK
EPIM SEL
EPIM SEL
EPIM
EPIM
E
P
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M

TPXMIM Installation Guide i
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 FORANY
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 BEENADVISED OF, KNOWN, OR
SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH DAMAGES.
© Copyright May 1994 by:
Cabletron Systems, Inc.
P.O. Box 5005
Rochester, NH 03867-0505
All Rights Reserved
Printed in the United States of America
Part Number: 9031145 May 1994
SPECTRUM and LANVIEW are registered trademarks and TPXMIM , EMME ,
EMM-E6 , MMAC-8FNB , MMAC-5FNB , MMAC-3FNB , and EPIM are trademarks of
Cabletron Systems, Inc.
Ethernet is a registered trademark of Xerox Corp.
VT-220 and VT-320 are trademarks of Digital Equipment Corp.
CompuServe is a registered trademark of CompuServe, Inc.
Printed on
recycled paper.

NOTICE
ii TPXMIM Installation Guide
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 ClassA
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.
DOC NOTICE
This digital apparatus does not exceed the ClassA 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.

TPXMIM Installation Guide iii
CABLETRON SYSTEMS, INC.
PROGRAM LICENSE AGREEMENT
IMPORTANT: Before utilizing this product, carefully read this License Agreement.
This document is an agreement between you, the end user, and Cabletron Systems, Inc.
(“Cabletron”) that sets forth your rights and obligations with respect to the Cabletron
software program (the “Program”) contained in this package. The Program may be
contained in firmware, chips or other media. BY UTILIZING THE ENCLOSED
PRODUCT,YOU ARE AGREEING TO BECOME BOUND BY THE TERMS OF THIS
AGREEMENT, WHICH INCLUDES THE LICENSE AND THE LIMITATION OF
WARRANTY AND DISCLAIMER OF LIABILITY. IFYOU DO NOT AGREE TO THE
TERMS OF THISAGREEMENT, PROMPTLY RETURN THE UNUSED PRODUCT
TO THE PLACE OF PURCHASE FOR A FULL REFUND.
CABLETRON SOFTWARE PROGRAM LICENSE
1. LICENSE. You have the right to use only the one (1) copy of the Program provided
in this package subject to the terms and conditions of this License Agreement.
You may not copy, reproduce or transmit any part of the Program except as permitted
by the Copyright Act of the United States or as authorized in writing by Cabletron.
2. OTHER RESTRICTIONS. You may not reverse engineer, decompile, or
disassemble the Program.
3. APPLICABLE LAW. This License Agreement shall be interpreted and governed
under the laws and in the state and federal courts of New Hampshire.You accept the
personal jurisdiction and venue of the New Hampshire courts.

iv TPXMIM Installation Guide
EXCLUSION OF WARRANTY
AND DISCLAIMER OF LIABILITY
1. EXCLUSION OF WARRANTY. Except as may be specifically provided by
Cabletron in writing, Cabletron makes no warranty, expressed or implied, concerning
the Program (including Its documentation and media).
CABLETRON DISCLAIMSALL WARRANTIES, OTHER THAN THOSE
SUPPLIED TOYOU BY CABLETRON IN WRITING, EITHER EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF
MERCHANTABLITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH
RESPECT TO THE PROGRAM, THEACCOMPANYING WRITTEN
MATERIALS, AND ANY ACCOMPANYING HARDWARE.
2. NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT SHALL
CABLETRON OR ITS SUPPLIERS BE LIABLE FORANY DAMAGES
WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR
LOSS OF BUSINESS, PROFITS, BUSINESS INTERRUPTION, LOSS OF
BUSINESS INFORMATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR
RELIANCE DAMAGES, OR OTHER LOSS) ARISING OUT OF THE USE OR
INABILITY TO USE THIS CABLETRON PRODUCT, EVEN IF CABLETRON
HAS BEENADVISED OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF
LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR ON
THE DURATION OR LIMITATION OF IMPLIED WARRANTEES IN SOME
INSTANCES THEABOVE LIMITATIONS AND EXCLUSIONS MAY NOT
APPLY TOYOU.
UNITED STATES GOVERNMENT RESTRICTED RIGHTS
The enclosed product (a) was developed solely at private expense; (b) contains “restricted
computer software” submitted with restricted rights in accordance with Section 52227-19
(a) through (d) of the Commercial Computer Software - Restricted Rights Clause and its
successors, and (c) in all respects is proprietary data belonging to Cabletron and/or its
suppliers.
For Department of Defense units, the product is licensed with “Restricted Rights” as
defined in the DoD Supplement to the Federal Acquisition Regulations, Section 52.227-
7013 (c) (1) (ii) and its successors, and use, duplication, disclosure by the Government is
subject to restrictions as set forth in subparagraph (c) (1) (ii) of the Rights in Technical
Data and Computer Software clause at 252.227-7013. Cabletron Systems, Inc., 35
Industrial Way, Rochester, New Hampshire 03867.

CONTENTS
TPXMIM Installation Guide v
CONTENTS
CHAPTER 1 INTRODUCTION
1.1 Using This Manual.......................................................................... 1
1.2 TPXMIM Features .......................................................................... 2
1.3 Overview......................................................................................... 3
1.4 The TPXMIM and Management Modules....................................... 4
1.5 The TPXMIM and MMAC Backplane.............................................. 5
1.6 LANVIEW LEDs.............................................................................. 6
1.7 Network Management Capabilities................................................. 7
1.8 Related Material ............................................................................. 7
1.9 Getting Help.................................................................................... 8
CHAPTER 2 SPECIFICATIONS/REQUIREMENTS
2.1 Operating Specifications................................................................. 9
2.2 TPXMIM Network Requirements.................................................. 11
2.2.1 TPXMIM-20/22 RJ45 Connector Specifications..............11
2.2.2 TPXMIM-33/34 Champ Connector Specifications........... 11
2.3 Network Requirements................................................................. 13
2.3.1 10BASE-T Twisted Pair Network..................................... 13
2.3.2 Multimode Fiber Optic Network....................................... 15
2.3.3 Single Mode Fiber Optic Network.................................... 16
2.3.4 Thin-Net Network............................................................. 17
2.4 Transceiver Requirements ........................................................... 17
CHAPTER 3 INSTALLATION/CONFIGURATION
3.1 Unpacking the TPXMIM................................................................ 19
3.2 Installing the TPXMIM .................................................................. 19
3.3 Configuring Boards and Ports ...................................................... 21
3.3.1 Assigning an Entire TPXMIM Board................................ 22
3.3.2 Assigning Individual TPXMIM Ports ................................24
3.4 Adding/Replacing EPIMs.............................................................. 25
3.5 Connecting to the Network........................................................... 26
3.5.1 Attaching a Twisted Pair Segment to
the TPXMIM-20/22 .......................................................... 27
3.5.2 Attaching a Twisted Pair Segment to
the TPXMIM-33/34 .......................................................... 28
3.5.3 Connecting a Twisted Pair Segment to an EPIM-T......... 30
3.5.4 Connecting an AUI Cable to an EPIM-X.......................... 32

CONTENTS
vi TPXMIM Installation Guide
3.5.5 Connecting a Fiber Optic Cable to an EPIM-F1/F2,
or EPIM-F3.......................................................................33
3.5.6 Connecting a Thin-Net Segment to an EPIM-C...............35
3.5.7 Connecting an AUI Cable to an EPIM-A..........................37
CHAPTER 4 TESTING/TROUBLESHOOTING
4.1 Pre-Installation Test......................................................................39
4.2 Installation Check-Out...................................................................40
4.3 Using LANVIEW............................................................................42
4.4 Troubleshooting Checklist.............................................................45
APPENDIX A TWISTED PAIR WIRING TABLES
APPENDIX B EPIM SPECIFICATIONS

TPXMIM Installation Guide Page 1
CHAPTER 1
INTRODUCTION
The Twisted Pair Switching Media Interface Module (TPXMIM) is a
switchable multi-channel Ethernet repeater that resides in a Multi Media
Access Center
®
(MMAC) hub. This manual explains how to:
• install the TPXMIM
• connect the module to an existing network
• troubleshoot any installation/operational problems.
In addition, Appendices contain TPXMIM and Ethernet Port Interface
Module (EPIM) environmental and operational specifications.
This manual serves as a simple installation and troubleshooting reference
guide for the TPXMIM. To gain a full understanding of this device and its
capabilities, and to help eliminate any potential problems during or after
installation, please be sure to read and understand all of the instructions
and information in this document and in the release notes.
1.1 USING THIS MANUAL
You should have a general working knowledge of Ethernet or IEEE 802.3
type data networks prior to installing the TPXMIM. The following
summarizes the organization of this manual.
Chapter 1,
Introduction , discusses TPXMIM features, and provides an
overview of the device’s capabilities. This chapter concludes with a list of
related documentation and how to obtain additional support related to
TPXMIM installation and operation.
Chapter 2,
Specifications/Requirements , provides specifications and
network requirements to consider before installing the TPXMIM.

CHAPTER 1: INTRODUCTION
Page 2 TPXMIM Installation Guide
Chapter 3, Installation/Configuration , provides instructions/guidelines
on how to install the TPXMIM into an MMAC-FNB, set the board or
individual ports to a specific MMAC Channel, install/replace an optional
EPIM, and connect segments to your device using an optional EPIM.
Chapter 4,
Testing/Troubleshooting , provides some testing procedures to
ensure the TPXMIM is working properly before installing it into your
network. This chapter also details the TPXMIM LANVIEW
®
LEDs that
enable you to quickly diagnose network/operational problems and
includes a troubleshooting checklist.
Appendix A,
Twisted Pair Wiring Tables , provides the wiring tables to
assist in using a punchdown block to wire twisted pair segments.
Appendix B,
EPIM Specifications , lists the specifications for each
optional EPIM available for the TPXMIM.
1.2 TPXMIM FEATURES
LANVIEW
Cabletron provides a visual diagnostic and status monitoring system,
called LANVIEW, with the TPXMIM. LANVIEW LEDs help you
quickly identify device, port, and physical layer problems.
“Switching”
The TPXMIM brings “bank switching” and individual “port assignment”
to the MMAC chassis. Using any multi-channel management module
(i.e., the EMME or EMM-E6), you can assign either the entire board
(bank switching) or each individual port (port assignment) to any of the
three Ethernet channels on the MMAC-FNB (i.e., Channel A, B, or C).
Connectivity
The TPXMIM series offers four connector versions:
• TPXMIM-20 — nine RJ45 ports; one EPIM port
• TPXMIM-22 — twenty-one RJ45 ports; one EPIM port
• TPXMIM-33 — one 50-pin Champ connector; one EPIM port
• TPXMIM-34 — two 50-pin Champ connectors; one EPIM port

OVERVIEW
TPXMIM Installation Guide Page 3
MIB Navigation
Assigning the TPXMIM board or individual ports to specific Ethernet
channels, or obtaining TPXMIM board or port statistics, requires a multi-
channel management device (e.g., EMME or EMM-E6) and access to a
MIB walking tool. The EMME or EMM-E6 allows MIB access both
locally (i.e., Local Management) and remotely (i.e., additional Cabletron
Remote Management packages).
For information on how to use the Local Management MIB walking tool,
refer to either the EMME or EMM-E6 Local Management manual. For
information on how to use a Remote Management MIB walking tool,
refer to documentation specific to that Remote Management package.
Compliance
Each TPXMIM utilizes Repeater Interface Controller (RIC) technology.
RIC technology integrates all repeater functionality into one integrated
circuit. This makes the TPXMIM fully 10Base-T IEEE 802.3i compliant.
Fault Tolerance
By performing its own repeater functions, the TPXMIM greatly enhances
the fault tolerance of the MMAC. By not relying on one central module to
perform repeater functions, TPXMIMs eliminate a single point of failure.
In addition, the TPXMIM provides port segment partitioning and
reconnection. This feature assures that problem segments do not affect
any other segments. If the TPXMIM detects 31 consecutive collisions on
any segment, or if a collision detector remains on for more than 110
µ s,
the TPXMIM automatically partitions that segment. When the TPXMIM
receives a good packet from the segment, it automatically reconnects.
1.3 OVERVIEW
The Twisted Pair Switching Media Interface Module (TPXMIM)
provides board or individual port connectivity to any MMAC-FNB
Ethernet Channel (i.e., Channels A, B, or C). All ports initially default to
Channel B upon power up and require a Management Information Base
(MIB) change to access any other channel. Refer to Chapter 3,
Installation/Configuration , for additional information on how to assign
the TPXMIM board or individual ports to specific channels.