Specifications

SYMPTOM: TROUBLE
Possible Cause 3: Cable connections.
WITH VOICE TERMINAL
LIGHTS, SPEAKER, AND
RINGING (CONTINUED).
SYMPTOM: A VOICE
TERMINAL RINGS
CONSTANTLY.
Do This
If
Step 1.
Go to the control unit
and locate the intercom
jack for the
malfunctioning voice
terminal and an intercom
jack for a working voice
terminal. Unplug both
from the control unit and
replug each into the
other’s jack. See if the
trouble now occurs on
the working voice
terminal.
The trouble occurs on the
previously working voice
terminal
The trouble no longer
occurs on the working
voice terminal
Step 2.
Test each cable in the
wiring run to the
malfunctioning voice
terminal by following this
procedure:
a. Connect the wiring run
to a functioning voice
terminal.
b. Replace the first cable
in the wiring run with
one known to be
working.
The trouble still occurs
The trouble no longer
occurs
Then
The problem is caused by
your control unit. Call
your equipment supplier
for assistance.
The trouble is caused by
a cable (there may be
more than one) in the
wiring run to the
malfunctioning voice
terminal. However,
check the previous two
causes for this symptom
first. If the problem
persists, go on to Step 2
of this cause.
Check the connection; if
the connections are
correct and secure,
remove the second cable
in the wiring run and
replace it with another
cable that is known to
work properly. If the
problem still occurs,
replace the third cable in
the run and so on until
all the cable in the run
has been replaced. If the
problem still persists, call
your local equipment
supplier for assistance.
The cable was the source
of the problem; discard
the malfunctioning cable.
Possible Cause: Voice terminal TIP switch isn’t in the center position.
The TIP switch is in the
center position
Then
Slide it to the center
position
Your voice terminal is
faulty. Unplug it from
the modular jack and try
another voice terminal in
its place.
7-6 Troubleshooting Procedures