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SYMPTOM: Trouble with voice terminal lights, speaker, and
ringing.
Possible Cause 1: Control Unit.
Do This
Slide the T/P switch on the
side of the voice terminal to
the T position and hold it
there.
If
All the red and green lights
flash alternately and a tone
sounds continually
Some red and green lights
flash continually and/or a
tone sounds at irregular
internals
None of the lights turn on
and a tone sounds
continually or irregularly
The lights are dim
Possible Cause 2: Faulty voice terminal.
Do This
If
Unplug the modular voice
terminal cord from the
malfunctioning voice
terminal. Plug the cord into
a working voice terminal.
Slide its T/P switch to the T
The same trouble appears on
the working voice terminal
position and hold it there.
The trouble does not appear
on the working voice
terminal
Then
The voice terminal is
working properly. Go to
Possible Cause 3.
The trouble is caused by
either the voice terminal or
the cable connection. Go
to Possible Cause 2.
The trouble is either the
control unit, the voice
terminal, or the cable
connection. Go to Possible
Cause 2.
The trouble is a faulty
control unit or power
supply. Contact your
equipment supplier for
assistance.
Then
The trouble is either in the
control unit or the cables.
Plug the malfunctioning
voice terminal into its
original jack and go to
Possible Cause 3.
The malfunctioning voice
terminal is faulty. Contact
your equipment supplier for
assistance.
Troubleshooting Procedures 7-5