Cisco Model GS7000 4-Port Node 1 GHz with 42 54 Split Installation Guide
Troubleshooting
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Troubleshooting
Equipment
The following equipment may be necessary to perform some troubleshooting
procedures.
procedures.
Cisco fiber optic ferrule cleaner, part number 468517, to clean fiber optic
connectors
connectors
Cisco 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
Cisco test probe, part number 501111, to access test points
Cisco 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.
too high or low.
Allow up to one minute
after power is ON for the
temperature to stabilize.
If still no output, contact the
Cisco Technical Service
Center for assistance.
after power is ON for the
temperature to stabilize.
If still no output, contact the
Cisco Technical Service
Center for assistance.
Laser could be faulty.
Contact the Cisco Technical
Service Center for
assistance.
Service Center for
assistance.
Automatic power control
circuit failure.
circuit failure.
Contact the Cisco Technical
Service Center for
assistance.
Service Center for
assistance.
Damaged
fiber.
Contact
the
Cisco
Technical
Service Center for
assistance.
assistance.