Installation guide

TROUBLE ON SEVERAL TELEPHONES
Lights
Symptom:
Voice terminal red and green lights do not flash alternately in the test mode
(T setting of T/P switch).
Possible Cause
Recommended Action
1.
The red Warning light on the
1.
Reset the control unit by unplugging the ac
control unit may be on.
power cord then plugging it in again.
2.
Control unit is defective.
2.
If the problem persists, the control unit
probably needs repair.
Symptom:
Control unit red Warning light flutters and feature cartridge is in place. Users
cannot place or receive calls.
Possible Cause
Recommended Action
Feature cartridge is not plugged in
Unplug ac power cord and insert feature cartridge
completely.
securely. Plug in ac power cord and place a call to
check system operation.
B4-4