User Manual

AS4000 Operations and Maintenance
Section
605-0000-431
4
. Issue 1.6. Date3/2/99
DLP-009
Page 33 of 44 © Copyright Airspan Communications Corporation 1999
RF CARD ALARMS
Alarm Indications
AS8100 (Sitespan) : ‘AnalogueCard: FRU Fail’
Note: Sitespan views the RF and Analogue cards as one object , the
LED indication will show which of the cards has failed.
Rack: Major/Prompt
Modem Shelf Alarm Panel: Fault Alarm
Card Alarm: RF Fail
Probable Cause
Failure of RF card.
Consequences:
Failure for all subscribers connected to the associated modem shelf.
Maintenance Clear Strategy
Change RF card.
STEP PROCEDURE
Observe full ESD precautions.
1. Press Receive Attention on the modem shelf cover to suppress alarm.
2. Change RF Card. Use the board extractor lever to remove the card from the shelf. Insert
the new card ensuring that the card is located within the shelf card guides. Use the
extractor lever to ensure that the card locates properly. Observe full anti-static
precautions.
3. The RF card holds the values for the TX output power. It will automatically set the output
power to the value stored in the card and then adjust the final output level. The time taken
for the card to set the correct power output will therefore be dependent on the stored
value and in the worst case will take up to two hours to regulate the level. The shelf
should be left to soak for two hours before proceeding to step 4.
Amber
RF Fail
Power OK
Red