Руководство По Установке для Cisco GainMaker Optoelectronic Node 1GHz with 65 86 MHz Split
EDR Digital Return Multiplexing Applications
Follow the steps in the table below to troubleshoot the transmitter module.
Symptom
Possible Cause
Possible Solutions
No optical signal output Laser temperature could be
too high or low.
Allow up to one minute
after power is ON for the
temperature to stabilize.
If still no output, contact the
If still no output, contact the
Technical Service Center for
assistance.
Laser could be faulty.
Contact the Technical
Service Center for
assistance.
Automatic power control
circuit failure.
Contact the Technical
Service Center for
assistance.
Damaged fiber.
Contact the Technical
Service Center for
assistance.
Symptom
Possible Cause
Possible Solutions
No optical signal output
(cont'd)
One or more power supply
voltages are out of
specification.
Check the power supply for
proper operation.
No AC at receptacle.
Check the receptacle for AC
power.
Blown fuse on the power
supply.
Check the power supply
fuse and replace as
necessary.
Faulty module.
Contact the Technical
Service Center for
assistance.
144
OL-29644-03