Clear the PWR-PROT-ON Alarm
SUMMARY STEPS
1. To clear the alarm, check if the Raman amplifier is connected to the wrong span. If it is, check patch cords
setup and fix it.
2. Alternatively, review the network configuration to see Raman amplifier has been wrongly used. If is,
remove it.
DETAILED STEPS
Step 1 To clear the alarm, check if the Raman amplifier is connected to the wrong span. If it is, check patch cords setup and fix
it.
Step 2 Alternatively, review the network configuration to see Raman amplifier has been wrongly used. If is, remove it.
If the alarm does not get cleared, you need to report a Service-Affecting (SA) problem. Log into the Technical Support
Website at http://www.cisco.com/c/en/us/support/index.html for more information or log into http://www.cisco.com/c/
en/us/support/web/tsd-cisco-worldwide-contacts.html to obtain a directory of toll-free Technical Support numbers for
your country.
RAMAN-CALIBRATION-FAILED
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
Logical Object: OTS
The RAMAN-CALIBRATION-FAILED alarm is raised on the EDRA-1-xx, EDRA-2-xx, and RAMAN-CTP
cards when automatic Raman pump calibration is failed and will not run again. The alarm indicates insufficient
Raman Amplification by customer fibre. The Raman calibration can also fail due to the setup issues that
include:
• Wrong patch-cords or cabling
• Incorrect ANS
• Missing communication channel between nodes.
Clear the RAMAN-CALIBRATION-FAILED Alarm
SUMMARY STEPS
1. Use optical time domain reflectometer (OTDR) to identity any excess loss between the Raman card
LINE-RX port and the customer fibre. After the inspection, a new Raman Calibration is triggered and if
the physical problem is fixed, the alarm will clear.
2. If the alarm is caused by a set-up problem, re-verify all node installation steps and manually trigger a
Raman Calibration.
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
371
Alarm Troubleshooting
Clear the PWR-PROT-ON Alarm
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