Introduction To System Maintenance; Equipment - AT&T MERLIN LEGEND Communications System Release 2.0 Maintenance And Troubleshooting Manual

Introduction to System
Maintenance
The purpose of maintenance is to detect, report, and clear problems quickly
with minimum disruption of service. The system attempts to isolate each
problem to a single replaceable unit whenever possible by running automatic
tests. Errors that cannot be automatically corrected are usually recorded in
error logs. Most of your troubleshooting will rely on checking these error logs
and interpreting them using Table 2-1, "Error Codes," in Chapter 2.

Equipment

To perform maintenance, you need a maintenance terminal and some
additional tools, all of which are defined below.
Maintenance Terminal
Whether you perform maintenance on-site or remotely, you will need a
maintenance terminal:
For on-site maintenance, use one of the following:
— MLX-20L console
— PC with System Programming and Maintenance (SPM)
Equipment 1-1