Diagnostic Procedures; Required Equipment - Canoga Perkins 2240 User Manual

6. Diagnostic Procedures

6.1 2240 / 2201 Diagnostic Procedures
The following diagnostic procedures should be followed to test the 2240 system,
troubleshoot a defective link or detect a defective fiber optic cable, connector,
modem or power supply.
NOTE: Refer to the 2201 Rack Chassis / 2200R Redundant Modem
Card User Manual for diagnostic procedures for the 2201 Rack
Chassis and power supplies.

6.1.1 Required Equipment

1) Multimeter - for AC voltage, resistance and continuity tests
2) Fiber Optic Power Meter - should be calibrated atthe correct optical wave
length with the appropriate optical connectors
3) A short (one meter or less) fiber optic jumper cable consistent with the
modem optics under test, terminated with the appropriate connectors
4) A Bit Error Rate Tester (BERT) with the appropriate electrical interface and
cable
Step Symptom
1 No power indicator
on front panel(s)
2 No power indicator
on front panel(s)
NOTE: Once any power system problems have been corrected,
continue the system checkout after the Loopback Diagnostic
Procedure.
2240 Fiber Optic Modem
Possible Cause(s)
No AC power
Defective modem
Action
Check AC
power
source
Replace
Modem
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