Cisco GainMaker Optoelectronic Node 1GHz with 65 86 MHz Split Installation Guide
Troubleshooting
Troubleshooting
Equipment
The following equipment may be necessary to perform some troubleshooting
procedures.
Fiber optic ferrule cleaner, part number 468517, to clean fiber optic connectors
99% alcohol and lint free wipes to clean fiber connectors
Optical power meter to measure light levels
Proper fiber connector for optical power meter to make optical connections
Digital voltmeter to measure voltages
Spectrum analyzer or a field strength meter to measure RF levels
Test probe, part number 501111, to access test points
External test probe, part number 562580, to access external test points
Transmitter Module Troubleshooting Chart
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.
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