User manual
DEFINITY ECS Release 8.2 Maintenance for R8.2csi 
555-233-119  Issue 1
April 2000
About This Book 
xviOrganization 
Each DEFINITY System has a user-designated System Manager who is 
responsible for system administration and with whom the maintenance 
technician should work closely.
This book is not intended to solve all levels of troubles. It is limited to troubles that 
can be solved by using the Alarm Log, Error Log, trouble-clearing procedures, 
maintenance tests, and traditional troubleshooting methods. If the trouble still has 
not been resolved, it is the responsibility of the maintenance technician to 
escalate the problem to a higher level of technical support. Escalation should 
conform to the procedures in the 
Technical and Administration Escalation Plan
.
Organization
This book consists of two volumes: Volume 1 contains Chapters 1 and 2; Volume 
2 contains Chapter 3.
■ Chapter 1, ‘‘Maintenance for csi systems’’ describes the system’s design 
and maintenance strategy, including circuit packs, how power is supplied 
to the system, the various reset and reboot processes (and how these 
processes are used to perform maintenance and to recover systems or 
subsystems that are out of service), common maintenance tasks 
(including removing and installing circuit packs, removing and restoring 
power, system backups, upgrading software, and various testing and 
troubleshooting procedures), and interpreting circuit pack LEDs.
■ Chapter 2, ‘‘Maintenance Commands’’ explains how to use the 
maintenance commands including specific command syntax, typical 
forms, and display output.
■ Chapter 3, ‘‘Maintenance Objects’’ has specific troubleshooting and repair 
instructions for every maintenance component in the system. This chapter 
also contains repair procedures for system-alarmed and user- reported 
troubles. For each Maintenance Object (MO), a table lists the alarm level, 
hardware error associated with the MO, the associated test that caused 
the error, the test sequences and the specific command line entry 
required to run the tests, and a brief description of each test. Explanations 
of error codes associated with each test are given along with specific 
maintenance procedures used to resolve each problem.
The individual maintenance objects are labeled with the name of the MO 
exactly as the name appears in the Alarm Log; for example, MAINT (for 
Maintenance circuit pack). The only exception is the Common Port Circuit 
Pack that uses “XXX-BD” for its maintenance name. The XXX-BD section 
contains a set of common tests used by certain circuit packs listed in the 
section. The common portion of these circuit packs is the generic 
hardware that interfaces with the Time Division Multiplex (TDM) Bus.










