Installation guide

Voice terminal behaves abnormally in the test mode (T setting of T/P switch).
Symptom:
Normally, when a voice terminal is in the test mode, the red and green lights flash
alternately and a tone sounds regularly.
Possible Cause
1. Modular jack for the voice
terminal is miswired.
2.
Wiring between the control unit
and voice terminal is faulty.
3.
Voice terminal is defective.
TROUBLE ON ONE TELEPHONE
Lights
Recommended Action
1. Make sure the wires from the cable are
terminated in the modular jack in this order
from left to right:
1. White-blue
2. Blue
3. White-orange
4. Orange
5. White-green
6. Green
7. White-brown
8. Brown
2. Make sure the wiring between the voice
terminal, jack field, and control unit is not
damaged. Make sure the connections are
secure.
3.
Switch the suspect voice terminal with one
known to be working properly.
If the trouble does not appear on the working
voice terminal, the suspect voice terminal is
defective. Replace it.
A4-3