Basic Trouble Tests; Tests To Determine If The Trouble Is In Your System - AT&T Merlin 820 Service And Maintenance Manual

If your communications system malfunctions, these tests may help you rapidly
locate the cause of the trouble.
These tests are divided into three main sections:
1. Tests to Determine if the Trouble Is in Your System: This section helps you
determine if the trouble is caused by local telephone company equipment or by
your communications system.
2. Symptom-Based Tests: This section helps you to identify the causes of specific
common problems your system may encounter.
3. General Tests: This section helps you to do further tests if the tests in the first
two sections did not identify the cause of your system's problems.
If the appropriate tests do not help you find the trouble in your system, either go on
to "HOW TO SELECT THE CORRECT PROCEDURE" in this manual or call your
equipment supplier for help.
TESTS TO DETERMINE IF THE TROUBLE IS IN YOUR
SYSTEM
Your local telephone company is responsible for providing service from the tele-
phone company to the network interface. You are responsible for the operation of
your communications system and its connection to the network interface.
This shared responsibility means that problems must be isolated before they can be
solved. If problems are in your communications system, you must see that repairs
are made. If service problems are caused by trouble on the telephone network, your
local telephone company must make repairs.

BASIC TROUBLE TESTS

Basic Trouble Tests
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