Cabletron Systems NBR-420, NBR-620, NBR-220 User Manual

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NBR-220, NBR-420, AND NBR-620

INSTALLATION GUIDE

NBR-220 TWO PORT BRIDGE WITH LANVIEW®

 

PWR

RESET

CPU

 

COM

NBR-420 MULTI PORT BRIDGE ROUTER

 

PWR

DISPLAY RESET

CPU

COM 2

COM 1

NBR-620 MULTI PORT BRIDGE ROUTER

 

PWR

DISPLAY RESET

CPU

COM 2

COM 1

RECEIVE

 

 

 

TRANSMIT

 

 

 

COLLISION

 

PWR

PWR

STAND BY

EPIM-A

 

EPIM-A

B A PORT

PORT B

PORT A

WITH

LANVIEW®

T1/FT1

SYNC

 

 

 

 

 

LNK YEL STB DSR LNK

 

 

 

 

 

TST RED SYN CTS TST

PORT F

PORT E

 

 

 

BRIM-WT1

 

 

 

 

RECEIVE

TRANSMIT

COLLISION

STAND BY

STY XMT

LNK RCV

BRIM-A100

PWR

PWR

EPIM-A

EPIM-A

B A PORT

PORT B

PORT A

WITH

LANVIEW®

T1/FT1

SYNC

 

 

 

 

LNK YEL STB DSR LNK

 

 

 

 

 

TST RED SYN CTS TST

BRIM-WT1

PORT F

PORT E

 

 

 

 

 

 

 

 

RECEIVE

 

 

 

 

 

TRANSMIT

 

 

 

 

 

COLLISION

 

PWR

 

PWR

 

STAND BY

EPIM-A

 

 

EPIM-A

 

 

 

 

 

STY XMT

LNK RCV

BRIM-A100

PWR

PWR

EPIM-A

EPIM-A

D C B A PORT

PORT D

PORT C

PORT B

PORT A

1092_01

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

NBR-SERIES Installation Guide

i

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.

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. IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT, PROMPTLY RETURN THE UNUSED PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.

ii

NBR-SERIES Installation Guide

Notice

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.

NBR-SERIES Installation Guide

iii

Notice

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

iv

NBR-SERIES Installation Guide

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

3.5.3Connecting 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

NBR-SERIES Installation Guide

v

Contents

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

vi

NBR-SERIES Installation Guide

 

 

Contents

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

vii

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

NBR-220 TWO PORT BRIDGE WITH LANVIEW®

 

PWR

RESET

CPU

 

COM

NBR-420 MULTI PORT BRIDGE ROUTER

 

PWR

DISPLAY RESET

CPU

COM 2

COM 1

NBR-620 MULTI PORT BRIDGE ROUTER

 

PWR

DISPLAY RESET

CPU

COM 2

COM 1

RECEIVE

 

 

 

TRANSMIT

 

 

 

COLLISION

 

PWR

PWR

STAND BY

EPIM-A

 

EPIM-A

B A PORT

PORT B

PORT A

WITH

LANVIEW®

T1/FT1

SYNC

 

 

 

 

 

 

 

LNK YEL STB DSR LNK

 

 

 

 

 

 

 

 

 

STY

XMT

 

 

 

 

 

 

LNK

RCV

 

 

 

 

TST RED SYN CTS TST

 

 

 

BRIM-A100

 

 

 

BRIM-WT1

PORT F

PORT E

 

 

 

 

 

 

 

 

RECEIVE

 

 

 

 

 

 

 

TRANSMIT

 

 

 

 

 

 

 

COLLISION

 

 

 

 

PWR

PWR

 

STAND BY

 

 

 

 

EPIM-A

EPIM-A

B A PORT

PORT B

PORT A

WITH

LANVIEW®

T1/FT1

SYNC

 

 

 

 

 

 

LNK YEL STB DSR LNK

 

 

 

 

 

 

 

 

 

 

STY

XMT

 

 

 

 

 

 

LNK

RCV

 

 

 

TST RED SYN CTS TST

BRIM-WT1

PORT F

PORT E

 

BRIM-A100

 

 

 

 

 

 

 

 

 

 

 

RECEIVE

 

 

 

 

 

 

 

TRANSMIT

 

 

 

 

 

 

 

COLLISION

 

PWR

 

PWR

PWR

PWR

 

STAND BY

EPIM-A

 

 

EPIM-A

EPIM-A

EPIM-A

D C B A PORT

PORT D

PORT C

PORT B

PORT A

1092_01

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-SERIES Installation Guide

Page 1-1

Chapter 1: Introduction

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 USING THIS 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.

Page 1-2

NBR-SERIES Installation Guide

NBR Features

Appendix A, NBR Specifications, provides the physical properties, environmental operating requirements, agency approvals, and power requirements.

Appendix B, EPIM Specifications, details the specifications for the EPIMs that may be used with the NBR.

Appendix C, Network Planning and Configuration, provides information on network cable requirements.

Appendix D, Additional Information, provides an NBR overview and bridging functionality.

1.2 NBR FEATURES

LANVIEW LEDs

Cabletron Systems provides a visual diagnostic and monitoring system, called LANVIEW, with the NBR. LANVIEW LEDs help you quickly identify device, port, and physical layer problems.

LCD

The NBR-420 and NBR-620 are equipped with an LCD that provides information about the NBR such as power up diagnostics, revision levels, MAC and IP addresses, and error alerts.

RESET Button

The RESET button lets you re-boot and initialize the processor.

Intelligence

The NBR is equipped with an advanced Intel i960 microprocessor to provide a scalable RISC-based architecture.

Hardware Bridging Logic

The NBR uses hardware packet filter/forward logic to increase bridging performance.

Connectivity

The NBR-220 and the NBR-420 have two Ethernet ports (A and B channels) and the NBR-620 has four Ethernet ports (A, B, C, and D channels). These ports provide external connections through Ethernet Port Interface Modules (EPIMs) located on the NBR faceplate.

NBR-SERIES Installation Guide

Page 1-3

Chapter 1: Introduction

Bridging/Routing

The NBR-420 and NBR-620 can support two optional Bridge/Router Interface Modules (BRIMs). These modules allow for additional Ethernet connections, Wide Area (Full or Fractional T1; 56k DDS) access, or links to existing high-speed network backbones such as Asynchronous Transfer Mode (ATM) or Fiber Distributed Data Interface (FDDI).

Memory

The NBR comes with 4 Megabytes (MB) of Shared Dynamic Random Access Memory (SDRAM), 8 MB of Local Dynamic Random Access Memory (LDRAM), and 2 MB of FLASH Electrically Erasable Programmable Read Only Memory (FLASH EEPROM). In addition, the NBR motherboard provides the option of upgrading memory capacity by using Single In-line Memory Modules (SIMMs).

In order to fully use Remote Monitoring (RMON), it is necessary to upgrade local memory with an 8 MB SIMM. Without this upgrade, some RMON groups may not be available.

NOTE

For information on how to order SIMM upgrade packages,

contact Cabletron Systems Technical Support.

DLM

The NBR allows the option of using Cabletron Systems Distributed LAN Monitor (DLM) software to locally poll and monitor any Simple Network Management Protocol (SNMP) or Internet Protocol (IP) device.

Management Information Base (MIB) Support

The NBR provides IETF MIB support, which includes the following:

Cabletron Systems Enterprise MIBs

Remote Monitoring MIB (RMON)

Bridge MIB

MIBII

Page 1-4

NBR-SERIES Installation Guide

NBR Features

MIB Navigation

NBR firmware supports a management tool which allows for MIB navigation from a remote station. Refer to the NBR-220, NBR-420, and NBR-620 Local Management Guide for more information regarding MIB navigation.

Spanning Tree Protocol Support

The NBR supports the following spanning tree protocols:

802.1d

DECnet

Serial Connections/Local Management

The NBR-220 provides one RJ45 port (COM) for serial connections and the NBR-420 and NBR-620 provide two RJ45 ports (COM 1 and

COM 2). These ports allow you to access Local Management by locally connecting a DEC VT220 or VT320 terminal, or a PC using VT emulation software. Refer to your NBR-220, NBR-420, and NBR-620 Local Management Guide for additional information on how to use Local Management. In addition, any of the COM ports can be used as an Uninterruptible Power Supply (UPS) management port.

NBR-SERIES Installation Guide

Page 1-5

Chapter 1: Introduction

1.3 CONVENTIONS USED IN THIS DOCUMENT

The following conventions are used throughout this document:

NOTE

Note symbol. Calls the reader’s attention to any item of

information that may be of special importance.

TIP

!

CAUT ION

Tip symbol. Conveys helpful hints concerning procedures or actions.

Caution symbol. Contains information essential to avoid damage to the equipment.

Warning symbol. Warns against an action that could result in equipment damage, personal injury or death.

1.4 RELATED MANUALS

Use the following manuals to supplement the procedures and other technical data provided in this manual. This manual references procedures in these manuals, where appropriate, but does not repeat them.

Cabletron Systems NBR-220, NBR-420, and NBR-620 Local

Management Guide

Cabletron Systems BRIM User’s Guide(s)

Cabletron Systems Routing Services Configuration Guide

Page 1-6

NBR-SERIES Installation Guide

Getting Help

1.5 GETTING HELP

If you need additional support related to this device, or if you have any questions, comments, or suggestions concerning this manual, contact Cabletron Systems Technical Support:

By phone

(603) 332-9400

 

Monday – Friday; 8 A.M. – 8 P.M. Eastern Time

By CompuServe

GO CTRON from any ! prompt

By Internet mail

support@ctron.com

By FTP

ctron.com (134.141.197.25)

Login

anonymous

Password

your email address

Before calling Cabletron Systems Technical Support, have the following information ready:

Description of the failure

Description of any action(s) already taken to resolve the problem (e.g., changing mode switches, rebooting the unit, etc.)

Description of your network environment (layout, cable type, etc.)

Network load and frame size at the time of trouble (if known)

Serial and revision numbers of all Cabletron Systems products in the NBR network

Device history (i.e., have you returned the device before, is this a recurring problem, etc.)

Any previous Return Material Authorization (RMA) numbers

NBR-SERIES Installation Guide

Page 1-7

CHAPTER 2

CONTROLS AND INDICATORS

This chapter provides descriptions of the controls and indicators of the

Network Bridge Routers (NBR-220, NBR-420, NBR-620). The models are as follows:

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

NBR-220 TWO PORT BRIDGE WITH LANVIEW®

 

PWR

RESET

CPU

 

COM

NBR-420 MULTI PORT BRIDGE ROUTER

 

PWR

DISPLAY RESET

CPU

COM 2

COM 1

NBR-620 MULTI PORT BRIDGE ROUTER

 

PWR

DISPLAY RESET

CPU

COM 2

COM 1

RECEIVE

 

 

 

TRANSMIT

 

 

 

COLLISION

 

PWR

PWR

STAND BY

EPIM-A

 

EPIM-A

 

 

 

B A PORT

PORT B

PORT A

WITH

LANVIEW®

T1/FT1

SYNC

 

 

 

 

 

 

 

LNK YEL STB DSR LNK

 

 

 

 

 

 

 

 

 

STY

XMT

 

 

 

 

 

 

LNK

RCV

 

 

 

 

TST RED SYN CTS TST

 

 

 

BRIM-A100

 

 

 

BRIM-WT1

PORT F

PORT E

 

 

 

 

 

 

 

 

RECEIVE

 

 

 

 

 

 

 

TRANSMIT

 

 

 

 

 

 

 

COLLISION

 

 

 

 

PWR

PWR

 

STAND BY

 

 

 

 

EPIM-A

EPIM-A

B A PORT

PORT B

PORT A

WITH

LANVIEW®

T1/FT1

SYNC

 

 

 

 

 

 

LNK YEL STB DSR LNK

 

 

 

 

 

 

 

 

 

 

STY

XMT

 

 

 

 

 

 

LNK

RCV

 

 

 

TST RED SYN CTS TST

BRIM-WT1

PORT F

PORT E

 

BRIM-A100

 

 

 

 

 

 

 

 

 

 

 

RECEIVE

 

 

 

 

 

 

 

TRANSMIT

 

 

 

 

 

 

 

COLLISION

 

PWR

 

PWR

PWR

PWR

 

STAND BY

EPIM-A

 

 

EPIM-A

EPIM-A

EPIM-A

 

 

 

 

 

 

 

D C B A PORT

PORT D

PORT C

PORT B

PORT A

1092_01

Figure 2-1 The NBR-SERIES of Network Products

NBR-SERIES Installation Guide

Page 2-1

Chapter 2: Controls and Indicators

2.1 LANVIEW LEDs

The NBR-220, NBR-420, and NBR-620 incorporate the Cabletron Systems LANVIEW status monitoring and diagnostics system. LANVIEW LEDs help diagnose problems, such as a power failure or a cable fault. Each NBR includes the following LANVIEW LEDs:

A CPU LED, for board status

RECEIVE, TRANSMIT, COLLISION, and STAND BY LEDs for each Ethernet port

A PWR LED for power status

2.2 RESET BUTTON

The front panel also has a RESET button that allows you to re-initialize the processor. Chapter 4, Troubleshooting, provides detailed descriptions of each NBR LANVIEW LED.

2.3 LCD DISPLAY

The NBR-420 and NBR-620 are equipped with an LCD Display located on the front panel. The LCD provides status information about the present as well as past condition of the hub. You can view power up diagnostics, firmware revisions, MAC addresses, IP addresses, and alarm messages. The LCD displays the most current event, but can store up to 25 past events in memory. To access stored messages, press the DISPLAY button located on front panel of the NBR. Refer to Chapter 4, Troubleshooting, for detailed information.

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NBR-SERIES Installation Guide

CHAPTER 3

INSTALLATION

This chapter contains the following procedures:

Unpacking the NBR

Preparing the NBR for installation

Installing the NBR

Connecting the NBR to the power source

Connecting the NBR to the network

Only qualified personnel should perform installation procedures.

3.1 UNPACKING THE NBR

Unpack the NBR as follows:

1.Remove the packing material covering the NBR.

2.Carefully remove the NBR from the shipping box.

3.Visually inspect the NBR. If there are any signs of damage, contact Cabletron Systems Technical Support immediately.

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Chapter 3: Installation

3.2 PREPARING THE NBR FOR INSTALLATION

This section contains the following procedures:

Removing chassis cover

Setting mode switches

Setting NVRAM reset switch

Installing SIMM upgrades

Installing FLASH SIMMs

Installing LDRAM and SDRAM SIMMs

Adding/replacing EPIMs

Adding/replacing BRIMs

Testing the NBR

3.2.1 Removing Chassis Cover

This section describes how to remove the chassis cover from the NBR. Remove the chassis cover to install BRIMs, set the mode switch bank, and install SIMM memory upgrades.

Do not remove the cover from the NBR while power is applied to the unit.

Do not power up the unit, for any reason, until the cover and screws are in place. Hazardous voltages are present that could cause damage to the unit or personal injury.

The components and boards associated with the NBR are

!sensitive to static discharges. Be sure to use an antistatic wrist

strap and observe all static precautions during this procedure.CAUTION

Failure to do so could result in damage to the NBR.

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NBR-SERIES Installation Guide

Preparing the NBR for Installation

To remove the chassis cover, perform the following steps (see Figure 3-1):

1.Disconnect the NBR from the network as follows:

a.Disconnect the power cord from the rear of the NBR.

b.Disconnect all network cables attached to the NBR. Note the ports to which these cables attach.

2.Use a Phillips-head screwdriver to remove the seven screws that attach the chassis cover to the NBR. Place the screws aside.

Remove the chassis cover from the NBR.

Chassis Cover

Chassis

Cover Screw

1092_06

Figure 3-1 Removing the Chassis Cover

Figure 3-2 shows the top view of the NBR with the cover removed. It also shows the location of the mode switch bank, LDRAM slot, SDRAM slot, FLASH slot, NVRAM reset switch, and BRIM Ports.

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Chapter 3: Installation

FLASH

LDRAM

BRIM (PORT F)

SDRAM

 

BRIM (PORT E)

 

 

 

 

 

 

 

 

 

 

 

 

NVRAM

RESET SWITCH

NBR FRONT PANEL

MODE SWITCH BANK

OFF

ON

 

 

 

1

 

 

 

 

Cabletron Use Only

 

 

 

 

2

 

 

 

 

Cabletron Use Only

 

 

 

 

3

 

 

 

 

Cabletron Use Only

 

 

 

 

4

 

 

 

 

Cabletron Use Only

 

 

 

 

5

 

 

 

 

 

Baud Rate Default Switch (Off=9600, On=2400)

 

 

 

 

6

 

 

 

 

Forced Download Switch (This switch forces image file downloads.)

 

 

 

 

 

 

 

 

7

 

 

 

 

Cabletron Use Only

 

 

 

 

 

 

 

 

8

 

 

 

 

Password Default Switch (This switch clears passwords

 

 

 

 

 

 

 

 

 

 

 

 

 

stored in NVRAM.)

 

 

 

 

1092_07

Figure 3-2 Switch, BRIM, and SIMM Locations

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NBR-SERIES Installation Guide

Preparing the NBR for Installation

3.2.2 Setting Mode Switches

Never adjust switch settings while the NBR has power applied to it. Not only is this dangerous, but the change in position activates the switch function and after you reinstall or power cycle the NBR it will initiate the request.

Figure 3-2 shows the location and factory default settings of the mode switches. Check these switches to ensure that they are in the correct position for normal NBR operation.

Switch definitions are as follows:

Switch 1 - Cabletron Systems use only.

Switch 2 - Cabletron Systems use only.

Switch 3 - Cabletron Systems use only.

Switch 4 - Cabletron Systems use only.

Switch 5 - Baud Rate Default. Allows you to set the Console port baud rate. The OFF position sets the baud rate to 9600. The ON position sets the baud rate to 2400. The default position is OFF.

!

CAUTION

Do not change the state of Switch 6 unless the following conditions exist:

You have a station acting as a BOOTP server, and a TFTP server that contains the NBR image file. The BOOTP server and the TFTP server could be different servers.

You intend to set up a station to act as a BOOTP server for the NBR.

Switch 6 - Forced Download. Changing the state of this switch (i.e., moving the switch from one position to another) forces the NBR to download an image file from the station acting as the TFTP server.

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