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Preface
This guide describeshow to install a Nortel Networks 5399 Access Switch in a
NortelNe tworksSystem 5000 chassis.

Before YouBegin

This guide includesthe following chapters and appendices:
Chapter 1 Introduction
Contains an overviewof the Model 5399 Remote Access
ConcentratorModule, and describes the hardware features and
firmwarefunctions.
Chapter 2 Installing the Model 5399 Remote Access Concentrator Module
Describeshow to install the Model 5399 in a System 5000 chassis
and howto confirm its operating status.
Chapter 3 ROM Monitor Commands
Describesthe ROMMonitor commands that modify specific
configurationparameters, perform diagnostic tests, and load the
operationalcode.
Chapter 4 TroubleshootingProcedures
Providestroubleshooting and verification procedures.
Appendix A Port Pins a nd Signals
Detailsthe portconnectors located on the Model 5399 Remote
Access Concentrator.
Note: The Access Switch product name appears only on the title page.
Whenever the term Remote Access Concentrat or (RAC) appears in this
document,it refers to the Nortel Networks 5399 or 8000 AccessSwitch.