Possible Cause
3. Faulty cable connection.
Possible Solution
To Investigate Further
Step 1. Go to the control
unit and locate the intercom
jacks for the malfunctioning
voice terminal and for a
working voice terminal of
the same type (analog or
digital). Unplug both from
the control unit and replug
the working voice terminal
into the malfunctioning
voice terminal jack. See if
the trouble occurs on the
working voice terminal.
If the trouble no longer
occurs, the trouble is caused
by one of the cables running
to the malfunctioning voice
terminal.
Step 2. Replace each cable
of the wiring run to the
malfunctioning voice
terminal one at a time, and
test the malfunctioninig voice
terminal after each cable is
replaced. If the trouble still
occurs the replaced cable is
not the faulty one. Replace
the next cable.
If the trouble no longer
occurs, you’ve found the
faulty cable and corrected
the problem.
If the trouble still occurs, the
trouble is in the control unit.
Call the equipment supplier
for assistance.
Go to Step 2.
4-44 Procedures for Specific Symptoms
Содержание administration and
Страница 1: ...AT T 518 600 016 MERLIN II COMMUNICATIONS SYSTEM Installation Administration and Maintenance Manual ...
Страница 40: ...FIGURE 1 9 System architecture Theory of Operation 1 37 ...
Страница 175: ...Top cover Front cover FIGURE 2 27 Control unit covers Testing the System 2 107 ...
Страница 177: ...Top cover E m p t y m o d u l e FIGURE 2 28 Installing the control unit top cover Testing the System 2 109 ...
Страница 179: ...Front cover E m p t y module FIGURE 2 29 Installing the control unit front cover Testing the System 2 111 ...
Страница 211: ...FIGURE 3 I A MERLIN II System Display Console The Administrator Attendant Console 3 3 ...
Страница 213: ... FIGURE 3 2 A BIS 34D Console The Administrator Attendant Console 3 5 ...
Страница 217: ...1 1 FIGURE 3 3 Administration Menu for MERLIN II System Release 3 The Administrator Attendant Console 3 9 ...
Страница 218: ...t FIGURE 3 4 Administration Menu for MERIJN II System with Feature Module 2 3 10 The Administrator Attendant Console ...
Страница 331: ...General Tests 4 55 Reaming the Control Unit 4 55 Testing Outside Lines 4 56 ...
Страница 389: ...Section 5 Ordering Information Ordering Information 5 1 Product Listing 5 1 Ordering Information 5 1 ...