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ManualsBrandsAirspan Communications ManualsElectronicsCentral Terminal PCS Base Station
31323334353637383940
AS4000 Operations and Maintenance
Section
605-0000-431
3
. Issue 1.6. Date3/2/99
Page 19 of 22 © Copyright Airspan Communications Corporation 1999
2.1.14. Battery back-up charge drops below approximately 30% of full
charge
Message: ‘Low Battery’.
Source: ST PSU .
Fault Condition: Battery Charge drops below 30% of the charge. Low output
voltage from the ST PSU.
Likely Cause: Faulty battery and/or prolonged mains supply failure.
Consequential Effect: A ‘Battery Charge Drops Below 30% of the Charge’ message is
send to the element manager. If this condition persists, the CRU will
not be able to maintain its operation. The time to failure from this
point is indeterminate depending on the condition of the battery.
Repair Actions: There is no specific maintenance centre or repair action. The
customer is responsible for the mains supply to the ST PSU.