Cabletron Systems NBR-220 User manual

NBR-220 TWO PORT BRIDGE WITH LANVIEW®
RECEIVE
TRANSMIT
COLLISION
STAND BY
PORT
B A
PWR
CPU
COM
RESET PORT B PORT A
EPIM-A PWR EPIM-A PWR
NBR-420 MULTI PORT BRIDGE ROUTER WITH LANVIEW®
RECEIVE
TRANSMIT
COLLISION
STAND BY
PORT
B A
PWR
CPU
COM 2 COM 1
DISPLAY RESET PORT B PORT A
PORT F PORT E
EPIM-A PWR EPIM-A PWR
NBR-620 MULTI PORT BRIDGE ROUTER WITH LANVIEW®
RECEIVE
TRANSMIT
COLLISION
STAND BY
PORT
D C B A
PWR
CPU
COM 2 COM 1
DISPLAY RESET PORT D PORT C PORT B PORT A
PORT F PORT E
EPIM-A PWR EPIM-A PWR EPIM-A PWR EPIM-A PWR
BRIM-A100
STY
LNK
XMT
RCV
LNK YEL STB DSR LNK
T1/FT1
TST RED SYN CTS TST
SYNC
BRIM-WT1
BRIM-A100
STY
LNK
XMT
RCV
1092_01
LNK YEL STB DSR LNK
T1/FT1
TST RED SYN CTS TST
SYNC
BRIM-WT1
NBR-220, NBR-420, AND NBR-620
INSTALLATION GUIDE

NBR-SERIES 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 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 1996 by Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America
Order Number: 9031092-01 May 1996
SPECTRUM , LANVIEW , MicroMMAC , and BRIM are registered trademarks and Element
Manager , EPIM , EPIM-A , EPIM-F1 , EPIM-F2 , EPIM-F3 , EPIM-T , EPIM-X , FOT-F , FOT-F3 ,
HubSTACK , NBR-220 , NBR-420 , NBR-620 , SEH , SEHI , and TMS-3 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
ii NBR-SERIES Installation Guide
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 WARRANTYAND 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
NBR-SERIES Installation Guide iii
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
iv NBR-SERIES Installation Guide
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 that the equipment packaged with this notice conforms to
the above directives.
Manufacturer Legal Representative in Europe
Mr. Richard Michaud Mr. J. Solari
___________________________________ ___________________________________
Full Name Full Name
Manager of Engineering Services Managing Director - E.M.E.A.
___________________________________ ___________________________________
Title Title
Rochester, NH, USA Newbury, Berkshire, England
___________________________________ ___________________________________
Location Location

NBR-SERIES Installation Guide v
CONTENTS
CHAPTER 1 INTRODUCTION
1.1 Using This Manual.......................................................................1-2
1.2 NBR Features..............................................................................1-3
1.3 Conventions Used in This Document..........................................1-6
1.4 Related Manuals..........................................................................1-6
1.5 Getting Help.................................................................................1-7
CHAPTER 2 CONTROLS AND INDICATORS
2.1 LANVIEW LEDs...........................................................................2-2
2.2 RESET Button.............................................................................2-2
2.3 LCD Display.................................................................................2-2
CHAPTER 3 INSTALLATION
3.1 Unpacking the NBR.....................................................................3-1
3.2 Preparing the NBR for Installation...............................................3-2
3.2.1 Removing Chassis Cover ...............................................3-2
3.2.2 Setting Mode Switches ...................................................3-5
3.2.3 Setting NVRAM Reset Switch.........................................3-6
3.2.4 Installing SIMM Upgrades...............................................3-7
3.2.4.1 Installing FLASH SIMMs ................................3-7
3.2.4.2 Installing LDRAM and SDRAM SIMMs ..........3-9
3.2.5 Adding/Replacing EPIMs................................................3-9
3.2.6 Adding/Replacing BRIMs..............................................3-10
3.2.7 Testing the NBR ...........................................................3-11
3.3 Installing the NBR......................................................................3-12
3.3.1 Attaching the Strain-Relief Bracket...............................3-13
3.3.2 Rack Mounting the NBR ...............................................3-14
3.3.3 Free-Standing Installation.............................................3-15
3.4 Connecting the NBR to the Power Source................................3-15
3.5 Connecting the NBR to the Network..........................................3-17
3.5.1 Connecting a Twisted Pair Segment to an EPIM-T ......3-17
3.5.2 Connecting an AUI Cable to an EPIM-X.......................3-19
3.5.3 Connecting a Fiber Optic Cable to an EPIM-F1/F2
or EPIM-F33-20
3.5.4 Connecting a Thin-Net Segment to an EPIM-C............3-22
3.5.5 Connecting an AUI Cable to an EPIM-A.......................3-23

Contents
vi NBR-SERIES Installation Guide
CHAPTER 4 TROUBLESHOOTING
4.1 Using LANVIEW...........................................................................4-1
4.2 Troubleshooting Checklist............................................................4-4
4.3 Using the LCD..............................................................................4-6
4.3.1 Unsaved Initialization Messages.....................................4-7
4.3.2 Static System Messages.................................................4-7
4.3.3 Alarm Messages..............................................................4-9
4.3.4 Saved System Messages..............................................4-10
4.3.5 Failure or Error Messages.............................................4-12
4.4 Using the RESET Button ...........................................................4-12
APPENDIX A NBR SPECIFICATIONS
A.1 Operating Specifications............................................................. A-1
A.2 COM Port Pinouts....................................................................... A-2
A.3 Physical Properties ..................................................................... A-3
A.4 Environmental Requirements......................................................A-3
A.5 Certification................................................................................. A-3
A.6 Power Supply Requirements ......................................................A-3
APPENDIX B EPIM SPECIFICATIONS
B.1 EPIM Specifications.................................................................... B-1
B.2 EPIM-T........................................................................................ B-1
B.3 EPIM-F1/F2.................................................................................B-2
B.4 EPIM-F3...................................................................................... B-3
B.5 EPIM-C .......................................................................................B-5
B.6 EPIM-A and EPIM-X ................................................................... B-6
APPENDIX C NETWORK PLANNING AND CONFIGURATION
C.1 Network Cable Requirements.....................................................C-1
C.1.1 10BASE-T Twisted Pair Network....................................C-1
C.1.2 Multimode Fiber Optic Network ......................................C-3
C.1.3 Single Mode Fiber Optic Network...................................C-4
C.1.4 Thin-Net Network............................................................C-5
C.2 Transceiver Requirements..........................................................C-6
C.3 The NBR as a Multiport Router...................................................C-6
C.4 The NBR-420/NBR-620 and BRIMs ...........................................C-6

Contents
NBR-SERIES Installation Guide vii
APPENDIX D ADDITIONAL INFORMATION
D.1 NBR Overview.............................................................................D-1
D.2 Ethernet Channels A, B, C, and D...............................................D-2
D.3 Channels E and F........................................................................D-2
D.4 Bridging Functionality..................................................................D-3
INDEX

NBR-SERIES Installation Guide Page 1-1
CHAPTER 1
INTRODUCTION
The Cabletron Systems NBR-SERIES of Network Bridge Routers
(NBR-220, NBR-420, NBR-620)
provide bridging and routing solutions
for Ethernet, token ring, FDDI, ATM, or wide area networks. The
NBR-SERIES of standalone hubs consist of the following three models:
•
NBR-220 – two Ethernet Port Interface Module (EPIM) ports
•
NBR-420 – two EPIM ports, and two Bridge/Router Interface Module
(BRIM) ports
• NBR-620 – four EPIM ports, and two BRIM ports
Figure 1-1 The NBR-SERIES of Network Products
NOTE
This manual uses the term NBR to describe the NBR-220,
NBR-420, and NBR-620 unless otherwise specified.
NBR-220 TWO PORT BRIDGE WITH LANVIEW
®
RECEIVE
TRANSMIT
COLLISION
STAND BY
PORT
B A
PWR
CPU
COM
RESET
PORT B PORT A
EPIM-A PWR EPIM-A PWR
NBR-420 MULTI PORT BRIDGE ROUTER WITH LANVIEW
®
RECEIVE
TRANSMIT
COLLISION
STAND BY
PORT
B A
PWR
CPU
COM 2 COM 1
DISPLAY RESET
PORT B PORT A
PORT F PORT E
EPIM-A PWR EPIM-A PWR
NBR-620 MULTI PORT BRIDGE ROUTER WITH LANVIEW
®
RECEIVE
TRANSMIT
COLLISION
STAND BY
PORT
D C B A
PWR
CPU
COM 2 COM 1
DISPLAY RESET
PORT D PORT C PORT B PORT A
PORT F PORT E
EPIM-A PWR EPIM-A PWR EPIM-A PWR EPIM-A PWR
BRIM-A100
STY
LNK
XMT
RCV
LNK YEL STB DSR LNK
T1/FT1
TST RED SYN CTS TST
SYNC
BRIM-WT1
BRIM-A100
STY
LNK
XMT
RCV
1092_01
LNK YEL STB DSR LNK
T1/FT1
TST RED SYN CTS TST
SYNC
BRIM-WT1

Chapter 1: Introduction
Page 1-2 NBR-SERIES Installation Guide
This manual explains the following:
• Installing the NBR
• Connecting the NBR to an existing network
• Testing the NBR
• Troubleshooting any installation/operational problems
In addition,Appendices contain NBR and Ethernet Port Interface Module
(EPIM) environmental and operational specifications.
This manual serves as a simple installation and troubleshooting reference
guide for the NBR. For information regarding NBR out-of-band
management, refer to the
NBR-220, NBR-420, and NBR-620 Local
Management Guide
.
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/information in this
document and in the release notes supplied with your NBR.
1.1 USINGTHIS MANUAL
You should have a general working knowledge of Ethernet or IEEE 802.3
type data networks and their physical layer components, prior to installing
the NBR. The following summarizes the organization of this manual.
Chapter 1,
Introduction , provides instructions for using this manual,
product features, document conventions, related documents, and how to
get help.
Chapter 2,
Controls and Indicators , discusses the controls and
indicators for the NBR.
Chapter 3, Installation , provides instructions required to unpack the
NBR, perform pre-installation testing, install the NBR, and connect the
NBR to the network.
Chapter 4,
Troubleshooting , provides detailed troubleshooting
procedures for the NBR and a checklist to enable the user to troubleshoot
problems using LANVIEW LEDs.