Cabletron Systems MICROMMAC-22T User manual

MicroMMAC-22T/24T/42T/44T
USER’S GUIDE
BOOKTITLE2 OPTIONAL

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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 1997 by:
Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America
Order Number: 9031320-01 May 1997
SPECTRUM , Remote SPECTRUM , Remote LANVIEW , and MicroMMAC are registered
trademarks, and CRBRIM-W/T , MicroSNAC-T , HubSTACK , STH , STHI , TRC 800 , and TPIM
are trademarks of Cabletron Systems, Inc.
All other product names mentioned in this manual may be trademarks or registered
trademarks of their respective companies.
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.
Printed on Recycled Paper

NOTICE
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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.
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.
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 THIS AGREEMENT, PROMPTLY RETURN THE UNUSED
PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.

NOTICE
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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.
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 DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED TO
YOU BY CABLETRON IN WRITING, EITHER EXPRESSED OR IMPLIED, INCLUDING
BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE PROGRAM, THE
ACCOMPANYING WRITTEN MATERIALS, AND ANY ACCOMPANYING HARDWARE.
2. NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT SHALL
CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY 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 BEEN ADVISED 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 WARRANTIES, IN SOME
INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO
YOU.
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 03867-0505.

NOTICE
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DECLARATION OF CONFORMITY
Application of Council Directive(s): 89/336/EEC
73/23/EEC
Manufacturer’s Name: Cabletron Systems, Inc.
Manufacturer’s Address: 35 Industrial Way
PO Box 5005
Rochester, NH 03867
European Representative Name: Mr. J. Solari
European Representative Address: Cabletron Systems Limited
Nexus House, Newbury Business Park
London Road, Newbury
Berkshire RG13 2PZ, England
Conformance to Directive(s)/Product Standards: EC Directive 89/336/EEC
EC Directive 73/23/EEC
EN 55022
EN 50082-1
EN 60950
Equipment Type/Environment: 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

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CONTENTS
PREFACE
CHAPTER 1 INTRODUCTION
1.1 MicroMMAC-T Models.................................................................1-1
1.2 MicroMMAC-T Features..............................................................1-2
1.2.1 Lobe Port Features.........................................................1-2
1.2.2 Management Capabilities ...............................................1-2
1.2.3 Firmware Downloads To Flash EEPROM.......................1-3
1.2.4 Monitoring And Diagnostic Indicators .............................1-4
1.2.5 Ring Poll Failure Recovery .............................................1-4
1.2.6 Beaconing Protection/Recovery .....................................1-5
1.2.7 Distributed Monitoring Capabilities .................................1-6
1.2.8 UPS Monitoring Capability..............................................1-8
1.2.9 Accessories ....................................................................1-8
1.2.10 Management Information Base (MIB) Groups................1-9
CHAPTER 2 OPERATION
2.1 Turning The Hub On And Off.......................................................2-3
2.2 Control Switches And Buttons.....................................................2-4
2.2.1 Setting The Ring Speed..................................................2-4
2.2.2 Resetting The MicroMMAC-T .........................................2-5
2.2.3 Clearing NVRAM ............................................................2-6
2.3 Indicators.....................................................................................2-7
2.3.1 Describing LANVIEW LEDs............................................2-7
2.3.2 Describing The LCD System ..........................................2-8
2.4 Ports..........................................................................................2-10
2.4.1 COM Ports....................................................................2-10
2.4.2 Lobe Ports ....................................................................2-11
2.4.3 Ring In/Ring Out Ports..................................................2-12
2.4.4 STH STACK Ports ........................................................2-12
CHAPTER 3 INSTALLATION
3.1 Installing The MicroMMAC-T.......................................................3-1
3.1.1 Installation Requirements ...............................................3-1
3.1.2 Attaching The Strain-Relief Bar ......................................3-2
3.1.3 Installing The MicroMMAC-T In A Rack..........................3-3
3.1.4 Free-Standing Installation...............................................3-4

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3.2 Installing Accessories ..................................................................3-5
3.2.1 Removing The Chassis Cover.........................................3-5
3.2.2 Removing Protection Panels...........................................3-6
3.2.3 Connectors And Ports On The Motherboard...................3-8
3.2.4 Installing The 12-Port Daughterboard.............................3-9
3.2.5 Installing The MicroSNAC-T..........................................3-11
3.2.6 Installing The CRBRIM-W/T..........................................3-12
3.2.7 Installing The LDRAM SIMM.........................................3-13
CHAPTER 4 CABLING
4.1 Token Ring Cabling Overview .....................................................4-1
4.1.1 Describing Trunk Cabling................................................4-1
4.1.2 Describing Lobe Cabling.................................................4-2
4.2 Requirements And Recommendations ........................................4-2
4.2.1 Signal Interference..........................................................4-3
4.2.2 Determining The Station Count.......................................4-3
4.2.3 Determining The Maximum Signal-Drive Distance..........4-4
4.3 Connecting Lobe Port Cabling.....................................................4-6
4.4 Connecting Trunk Cabling .........................................................4-10
4.4.1 Describing TPIMs..........................................................4-10
4.4.2 Configuring TPIMs For RI/RO Application.....................4-11
4.4.3 Installing A TPIM...........................................................4-12
4.4.4 Connecting Twisted Pair Trunk Cable Segments..........4-13
4.4.5 Connecting Fiber Optic Trunk Cable Segments............4-15
4.5 Connecting STH Stackable Hubs ..............................................4-17
CHAPTER 5 MONITORING ANDTROUBLESHOOTING
5.1 Using LANVIEW LEDs.................................................................5-1
5.2 Using The LCD System ...............................................................5-2
5.2.1 Viewing Static System Messages ...................................5-2
5.2.2 Viewing Saved Alarm Messages.....................................5-3
5.2.3 Viewing Unsaved Initialization Messages .......................5-6
5.2.4 Viewing Saved System Messages..................................5-7
5.3 Monitoring The Initialization Process ...........................................5-8
5.3.1 Power Up Diagnostic Screen ..........................................5-8
5.3.2 LEDs And The LCD Panel.............................................5-10
5.4 General Troubleshooting Checklist............................................5-11

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APPENDIX A SYSTEM SPECIFICATIONS
A.1 Operating Specifications..............................................................A-1
A.2 Power Supply Specifications.......................................................A-1
A.3 Environmental Specifications ......................................................A-2
A.4 Physical Specifications................................................................A-2
A.5 Safety ..........................................................................................A-2
A.6 EMC Requirements.....................................................................A-2
APPENDIX B TPIM SPECIFICATIONS
B.1 TPIM-T1/T2/T4 Pinouts...............................................................B-1
B.2 TPIM-F2/F3 Specifications..........................................................B-2
APPENDIX C MEDIA SPECIFICATIONS
C.1 Twisted Pair Copper Cable..........................................................C-1
C.1.1 UTP.................................................................................C-1
C.1.2 STP .................................................................................C-2
C.2 Fiber Optic Cable.........................................................................C-3
C.2.1 Multimode........................................................................C-4
C.2.2 Single-Mode....................................................................C-4
INDEX

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