Bay Networks Remote Annex 5391/CT1 Manual

Part No. 166-024-155 Rev. A
August 1996
Hardware Installation Guide
Remote Annex
5391/CT1

Copyright ©1996 Bay Networks, Inc.
All rights reserved. Printed in the USA. August 1996.
The information in this document is subject to change without notice. The statements, configurations, technical
data, and recommendations in this document are believed to be accurate and reliable, but are presented without
express or implied warranty. Users must take full responsibility for their applications of any products specified in
this document. The information in this document is proprietary to Bay Networks, Inc.
The software described in this document is furnished under a license agreement and may only be used in accordance with
the terms of that license.
Restricted Rights Legend
Use, duplication, or disclosure by the United States Government is subject to restrictions as set forth in subparagraph
(c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013.
Notice for All Other Executive Agencies
Notwithstanding any other license agreement that may pertain to, or accompany the delivery of, this computer software,
therightsoftheUnitedStatesGovernmentregardingitsuse,reproduction,anddisclosureareassetforthintheCommercial
Computer Software-Restricted Rights clause at FAR 52.227-19.
Trademarks of Bay Networks, Inc.
Annex,RemoteAnnex,AnnexManager,RemoteAnnex2000,Remote Annex4000, Remote Annex6100,RemoteAnnex
6300, Remote Annex 5390/Async, Remote Annex 5391/CT1, Remote Annex 5393/PRI, BayStack Remote Annex 2000
Server, Quick2Config, Bay Networks, Bay Networks Press, and the Bay Networks logo are trademarks of Bay Networks,
Inc.
Third Party Trademarks
All other trademarks and registered trademarks are the property of their respective owners.
Statement of Conditions
In the interest of improving internal design, operational function, and/or reliability, Bay Networks, Inc. reserves the right
to make changes to the products described in this document without notice.
Bay Networks, Inc. does not assume any liability that may occur due to the use or application of the product(s) or circuit
layout(s) described herein.
In addition, the program and information contained herein are licensed only pursuant to a license agreement that contains
restrictions on use and disclosure (that may incorporate by reference certain limitations and notices imposed by third
parties).

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.
Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
toPart15 of theFCCRules.These limits are designed toprovidereasonableprotection againstharmful interference
when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.
IC 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 Communication.
Le present apparail numerique n’emet pas de bruits radioelectriques depassant les limites applicables aux appareils
numerique de la classe A prescrites dans le Reglement sur le brouillage radioelectrique edicte par le ministere des
Communications du Canada.

Notice to Users of T1 Service
This equipment complies with FCC Rules, Part 68. The FCC Registration Number is located on the label on the
front of the unit. You must provide this information to the telephone company if requested.
(1) All direct connections to T1 lines must be made using standard plugs and jacks.
(2) Before connecting your unit, you must inform the local telephone company of the
following information:
(3) If the unit appears to be malfunctioning, it should be disconnected from the telephone
lines until you learn if your equipment or the telephone line is the source of the trouble.
If your equipment needs repair, it should not be reconnected until it is repaired.
(4) The CSU/DSU has been designed to prevent harm to the T1 network. If the telephone
company finds that the equipment is exceeding tolerable parameters, the telephone
company can temporarily disconnect service, although they will attempt to give you
advance notice if possible.
(5) Under the FCC Rules, no customer is authorized to repair this equipment. This restriction
applies regardless of whether the equipment is in or out of warranty.
(6) If the telephone company alters their equipment in a manner that will affect use of this
device, they must give you advance warning so as to give you the opportunity for
uninterrupted service. You will be advised of your right to file a complaint with the FCC.
(7) In the event of equipment malfunction, all repairs should be performed by our Company
or an authorized agent. It is the responsibility of users requiring service to report the need
for service to our Company or to one of our authorized agents. For more information,
see page xix.
Port ID REN/SOC FIC USOC
T1 Network
Interface 6.0Y 04DU9-BN, 04DU9-DN,
04DU9-1KN,
RJ48C
Drop/Insert
Interface 6.0P 04DU9-1ZN, and 04DU9-1SN N/A (XD)

Notice
The Industry Canada label identifies certified equipment. This certification means that the equipment meets certain
telecommunications network protective, operational, and safety requirements. The Industry Canada does not
guarantee the equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the
local telecommunications company. The equipment must also be installed using an acceptable method of
connection. In some cases, the company’s inside wiring associated with a single line individual service may be
extended by means of a certified connector assembly (telephone extension cord). The customer should be aware
that compliance with the above conditions may not prevent degradation of service in some situations.
Repair to certified equipment should be made by an authorized Canadian maintenance facility designated by the
supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the
telecommunications company cause to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power utility, telephone
lines, andinternalmetallicwaterpipesystem,ifpresent,areconnectedtogether.Thisprecautionmaybeparticularly
important in rural areas.
Caution:Usersshouldnotattempttomakesuchconnectionsthemselves,butshould contacttheappropriateelectric
inspection authority, or electrician, as appropriate.

viiRemote Annex 5391/CT1 Hardware Installation Guide
Revision Level History
Revision Description
A Initial release.

Remote Annex 5391/CT1 Hardware Installation Guide
Revision Level History
viii

ixRemote Annex 5391/CT1 Hardware Installation Guide
Contents
Preface
About this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Printing Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Related Documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
Technical Support and Online Services
Bay Networks Customer Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
Bay Networks Information Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi
World Wide Web. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi
Customer Service FTP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xxii
Support Source CD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xxii
CompuServe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xxii
InfoFACTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii
How to Get Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv
Chapter 1 Introduction
Main Logic Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
T1 Modem Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
System 5000 Common Management Bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
System 5000 Backplane Ethernet Segment Banks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
System 5000 Service Port Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Firmware and Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Front Panel Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10
Physical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Chapter 2 Installing the Remote Annex 5391/CT1
Before you Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Installing the Remote Annex 5391/CT1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Preparing for Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Setting the Backplane Ethernet Segment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Installing the Module into the Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Testing the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11
Connecting a T1 Network Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Connecting a Drop/Insert Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Connecting a Service Port Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Connecting the Terminal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16
Initial Setup and Using the ROM Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Remote Annex Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19
Initializing the Remote Annex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19
Auto-initializing the Remote Annex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
BOOTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23
RARP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-24
Initializing and Booting from a Host System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Booting Using TFTP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-27
Booting from a Windows NT® Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-29
Booting from Another Remote Annex 5391/CT1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-29

Remote Annex 5391/CT1 Hardware Installation Guide
Contents
x
Installing the Operational Software and Loading the Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Installing to and Loading from a UNIX Host. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-30
Self-booting the Remote Annex. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
Invoking the Console Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
Chapter 3 ROM Monitor Commands
Command Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
addr. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
boot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
config. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12
erase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13
help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15
image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16
lat_key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17
net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18
option_key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19
ping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20
ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21
sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22
stats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24
Chapter 4 Troubleshooting Procedures
Front Panel Alarms and LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Power-up and Boot Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
BOOT Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Boot Error Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
Correcting Remote Annex Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
Load Server Host Not Responding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Remote Annex Dumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Conditions for Replacing a Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Module Configuration Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17
Preparing for a Hot Swap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19
Removing a Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-20
Completing the Hot Swap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-21
Appendix A Port Pins and Signals
T1 Network Interface Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Drop/Insert Interface Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Appendix B Network Bypass Jumper
Network Loopback Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-2
Cross Connect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-3

xiRemote Annex 5391/CT1 Hardware Installation Guide
Figures
Figure 1-1. Remote Annex 5391/CT1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Figure 1-2. The Remote Annex 5391/CT1 as a Remote Access Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Figure 1-3. The Remote Annex 5391/CT1 as a Dial-up Router. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Figure 1-4. Remote Annex 5391/CT1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
Figure 2-1. Jumper and Connector Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Figure 2-2. Inserter/Extractor Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Figure 2-3. Inserting the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Figure 2-4. Seating Module Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
Figure 2-5. Module LED Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
Figure 2-6. Connecting a T1 Network Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-13
Figure 2-7. Connecting a Drop/Insert Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
Figure 2-8. Slot Selection Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17
Figure 4-1. Remote Annex 5391/CT1 Front Panel Alarms and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Figure A-1. T1 Network Interface Port Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Figure A-2. Drop/Insert Interface Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Figure B-1. Network Bypass Jumper Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1
Figure B-2. Network Loopback Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-2
Figure B-3. Network Loopback Mode Jumper Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-2
Figure B-4. Cross-Connect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-3
Figure B-5. Cross-Connect Mode Jumper Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-3

Remote Annex 5391/CT1 Hardware Installation Guide
Figures
xii

xiiiRemote Annex 5391/CT1 Hardware Installation Guide
Tables
Table 1-1. Annunciator Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Table 1-2. Module Status LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Table 1-3. Modem Port Status LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Table 1-4. Network Status Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Table 2-1. Remote Annex 5391/CT1 Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Table 2-2. Segment Selection DIP Switch Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Table 2-3. Service Port Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Table 2-4. Server Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Table 3-1. ROM Monitor Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Table 3-2. Network Statistics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Table 4-1. Remote Annex 5391/CT1 Front Panel LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Table 4-2. Troubleshooting Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Table 4-3. Errors from Last ERPC Layer Invocation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Table 4-4. Errors from Last Read Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Table 4-5. Errors from Last Open Request. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Table 4-6. Remote Annex 5391/CT1 Dump File Naming Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
Table A-1. T1 Network Interface Port/Pin Signal Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Table A-2. Drop/Insert Interface Port Pin/Signal Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Remote Annex 5391/CT1 Hardware Installation Guide
Tables
xiv

xvRemote Annex 5391/CT1 Hardware Installation Guide
Preface
Thisguidedescribes how to install a Remote Annex 5391/CT1 in
a Bay Networks System 5000 Hub.
Refer to the Remote Annex Software Installation Notes that come with
your Remote Annex 5391/CT1 for a description of the software
installation. Refer to the Remote Annex Administrator’s Guide for
UNIX for configuration information.
About this Guide
This guide includes the following chapters and appendices:
Chapter 1 Introduction
Contains an overview of the Remote Annex
5391/CT1, and describes the hardware features
and firmware functions.
Chapter 2 Installing the Remote Annex 5391/CT1
Describes how to install the Remote Annex
5391/CT1 in a System 5000 Hub and how to
confirm its operating status.
Chapter 3 ROM Monitor Commands
Describes the ROM Monitor commands that
modify specific configuration parameters,
perform diagnostic tests, and load the
operational code.
Chapter 4 Troubleshooting Procedures
Provides troubleshooting and verification
procedures.

Remote Annex 5391/CT1 Hardware Installation Guide
Preface
xvi
Appendix A Port Pins and Signals
Details the port connectors located on the
Remote Annex 5391/CT1.
Appendix B Network Bypass Jumper
Describes the Network Bypass Jumper settings
for the Remote Annex 5391/CT1.
Printing Conventions
This manual uses the following printing conventions:
Convention: Represents:
special type
In examples, special type indicates system output.
special type Bold special type indicates user input.
In command examples, this notation indicates that
pressing enters the default value.
bold Bold indicates commands, pathnames, or filenames
that must be entered as displayed.
italics In the context of commands and command syntax,
lowercase italics indicate variables for which the
user supplies a value.
[ ] In command dialog, square brackets indicate default
values. Pressing selects this value. Square
brackets appearing in command syntax indicate
optional arguments.
{ } In command syntax, braces indicate that one, and
only one, of the enclosed value must be entered.
Retur
n
Retur
n
Retur
n

xviiRemote Annex 5391/CT1 Hardware Installation Guide
Preface
Related Documents
EachRemoteAnnexhardwareplatform shipswith theappropriate
hardware guide. The remaining documentation is included with
the software.
Convention: Represents:
|In command syntax, this character separates the
different options available for a parameter.
Notes give you important information.
Warnings inform you about conditions that can
have adverse effects on processing.
Cautions notify you about dangerous conditions.

Remote Annex 5391/CT1 Hardware Installation Guide
Preface
xviii

xixRemote Annex 5391/CT1 Hardware Installation Guide
Technical Support and Online Services
To ensure comprehensive network support to our customers and
partners worldwide, Bay Networks Customer Service has Technical
Response Centers in key locations around the globe:
❑Billerica, Massachusetts
❑Santa Clara, California
❑Sydney, Australia
❑Tokyo, Japan
❑Valbonne, France
TheTechnicalResponseCentersareconnectedviaaredundantFrame
Relay Network to a Common Problem Resolution system, enabling
them to transmit and share information, and to provide live, around-
the-clock support 365 days a year.
Bay Networks Information Services complement the Bay Networks
Service program portfolio by giving customers and partners access
to the most current technical and support information through a
choiceof access/retrievalmeans. These includetheWorld WideWeb,
CompuServe, Support Source CD, Customer Support FTP, and
InfoFACTS document fax service.
Bay Networks Customer Service
If you purchased your Bay Networks product from a distributor or
authorized reseller, contact that distributor’s or reseller’s technical
support staff for assistance with installation, configuration,
troubleshooting, or integration issues.

Remote Annex 5391/CT1 Hardware Installation Guide
Technical Support and Online Services
xx
Customers can also purchase direct support from Bay Networks
through a variety of service programs. As part of our PhonePlus™
program, Bay Networks Service sets the industry standard, with 24-
hour, 7-days-a-week telephone support available worldwide at no
extra cost. Our complete range of contract and noncontract services
alsoincludesequipmentstagingandintegration,installationsupport,
on-site services, and replacement parts delivery -- within
approximately 4 hours.
To purchase any of the Bay Networks support programs, or if you
have questions on program features, use the following numbers:
In addition, you can receive information on support programs from
your local Bay Networks field sales office, or purchase Bay Networks
support directly from your authorized partner.
Region Telephone Number Fax Number
United States
and Canada 1-800-2LANWAN; enter Express Routing Code (ERC) 290 when
prompted
[phone] (direct)
[phone]
Europe (33) 92-968-300 (33) 92-968-301
Asia/Pacific
Region (612) 9927-8800 (612) 9927-8811
Latin America [phone] [phone]