User Manual

AS4000 Operations and Maintenance
Section
605-0000-431
3
. Issue 1.6. Date3/2/99
Page 11 of 22 © Copyright Airspan Communications Corporation 1999
2.1.7. FRU Failed -From RF PA
Message: ‘Combiner:PowerAmp(N):FRU Fail’
Source: One of the Power Amplifiers (PA) at CT Combiner Shelf.
Fault Condition: One of the two PAs in the combiner shelf is in alarm state.
Likely Cause: Faulty PA module.
.
Consequential Effect: A Loss of service to all users connected to associated modem shelf.
Repair Actions:
Replace faulty PA module. Refer to detailed level procedure DLP-
011 in Section 4
Note: Removing the PA will also disconnect service to the other
modem shelf using the same PA module.