Chapter 5 Maintenance and Troubleshooting
104
78-4015908-01 Rev F
Troubleshooting Alarm Conditions
Module Alarm Conditions
If the red ALARM indicator is illuminated or is blinking, check the display on the
front panel to determine the cause of the alarm.
Alarm
Function
Possible Causes
Possible Solutions
Rx 1 Optical Input
Power
Optical input 1
Broken fiber
Transmitter failure
Check fiber
Transmitter failure
Rx 2 Optical Input
Power
Optical input 2
Broken fiber
Transmitter failure
Check fiber
Transmitter failure
PsOk
Bus voltage
status
Power supply
faulty
Check power supply
AGC 1 Range
Status
AGC 1 out-of-
range alarm
Broken fiber
Transmitter failure
Input power too
high or too low for
AGC setting
Check fiber
Transmitter failure
Adjust AGC
AGC 2 Range
Status
AGC 2 out-of-
range alarm
Broken fiber
Transmitter failure
Input power too
high or too low for
AGC setting
Check fiber
Transmitter failure
Adjust AGC
CAUTION:
Some 1310 nm transmitters with serial numbers beginning with NN are not
compatible with these receivers. Do not install these transmitters in any daisy
chain with one or more of these receivers.
Содержание Prisma II
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