Test C: Voice Terminal Cords And Cable Test - AT&T Merlin 820 Service And Maintenance Manual

TEST C: VOICE TERMINAL CORDS AND CABLE TEST

Do this test only if the result of Test B indicated that the trouble was caused by the
wiring.
See if there is only one modular terminal cord between the control unit
Step 1.
and the voice terminal on which the trouble appears.
IF
There is only one modular cord,
There is more than one modular
cord,
Switch the modular terminal cord of the voice terminal on which the trou-
Step 2.
ble appears and the modular terminal cord of the voice terminal with no
trouble (see Figure 15).
VOICE TERMINAL
(WITH TROUBLE)
VOICE TERMINAL
(WITHOUT TROUBLE)
Figure 15—Switching Modular Terminal Cords
Trouble on One Voice Terminal
Trouble found. It is caused by
the modular terminal cord.
Read the section on Maintenance
Exchange Procedures at the end of
this manual.
Go on to Step 2.
D8W MODULAR
TERMINAL CORDS
JACK FIELD
103A MODULAR
JACKS
THEN
CONTROL UNIT
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