TROUBLESHOOTING TABLE (CONTINUED)
Trouble
Possible Cause
Do this
If
Then
There is trouble with
Faulty voice terminal
2.
Unplug the modular voice
the same trouble appears on the the malfunctioning voice terminal
voice terminal lights,
terminal cord from the
working voice terminal probably is not faulty. The trouble is
speaker, or ringing.
malfunctioning voice ter-
in either the control unit or the
(continued)
minal. Replug the cord into a
cables. Plug the malfunctioning
working voice terminal. Slide
voice terminal into its original jack
its T/P switch to the T position
and go to step 3.
and hold it there.
the trouble does not appear on
the malfunctioning voice terminal is
the working voice terminal
faulty. Contact your equipment sup-
plier for assistance.
Cable connections
3.
Go to the control unit and the trouble still occurs
the problem is caused by your con-
locate the intercom jacks for
trol unit. Call your equipment sup-
both the malfunctioning and
plier for assistance.
working voice terminals.
Unplug both from the control
the trouble no longer occurs the trouble is caused by one of the
unit, and replug each into the
cables running to the malfunction-
other’s jack. See if the trou-
ing voice terminal. Go to step 4.
ble occurs on the working
voice terminal.
4.
Replace each cable, one at a
the trouble still occurs the replaced cable is not the faulty
time, and test the malfunc-
one. Replace the next cable.
tioning voice terminal.
the trouble no longer occurs
you’ve found the faulty cable.
A voice terminal
Voice terminal T/P
Check the position of the T/P
it is set at either T or P
slide it to the center position.
rings constantly.
switch is not set in
switch.
center position
it is in the center position
your voice terminal is faulty.
Unplug it from the modular jack
and contact your equipment sup-
plier for assistance.
All voice terminals
Control unit is not
1.
Set the control unit power the green power light on the call your equipment supplier for
have no lights and
receiving power
switch to Off and then back to
control unit is on and the trouble
assistance.
no dial tone.
On. This resets the control
remains
unit.
the green power light is on and the problem was corrected when
the trouble is gone
you reset the control unit.
the red warning light on the con-
go to step 3.
trol unit is on
the green power light is off
go to step 2.
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