Introduction; Equipment - AT&T MERLIN LEGEND Release 3.0 Installation Manual

Introduction

The purpose of maintenance is to detect, report, and clear problems quickly
with minimal disruption of service, The system attempts to isolate each
problem to a single replaceable unit, whenever possible, by running
automatic tests. Errors that it cannot automatically correct are usually
recorded in error logs. Most troubleshooting relies on checking the error logs
and interpreting them, using Table 2–2, "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 on-site or remote maintenance, you need a maintenance
terminal:
For on-site maintenance, you can use either an MLX-20L console or a
PC with System Programming and Maintenance (SPM) software.
For remote maintenance, you must use a PC with SPM software.
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Introduction 1–1