3.3.5   Interpretation of Alarm Slogans

The alarm slogan is the description of the current alarm situation for an MO or TG. The alarm slogans 'BTS INTERNAL' and 'BTS EXTERNAL' each describe more than one alarm situation. The remaining alarm slogans each describe a unique alarm situation. This section describes how each alarm slogan should be interpreted.

PERMANENT FAULT A managed object is classified as being permanently faulty when fault situations have occurred, and have been cleared, a certain number of times within a certain period of time. Manual intervention is required to bring such equipment back into operation.

LOCAL MODE The BTS equipment is in Local Mode or the BTS equipment has changed from Local to Remote Mode and a fault exists in the communication link between the BSC and the BTS. Communication between the BSC and the BTS is not possible.

LOOP TEST FAILED Test of the traffic carrying capabilities of the TS has failed.

BTS INTERNAL There is a fault internal to the BTS.

MAINS FAILURE There is a fault in the power supply to the BTS or one or more items of equipment within the BTS. Battery backup (where available) is in use. Escalation may occur if corrective action is not taken.

BTS EXTERNAL There is a fault external to the BTS.

OML FAULT There is a fault in the communications link between the BSC and BTS.

ABIS PATH UNAVAIL No transmission device exists between the BSC and BTS.

ABIS APTH FAULT A fault situation on Abis path is detected.

CON QUEUE CONGESTION There has been an overload situation in at least one of the LAPD Concentrator concentration outlet queues for a longer period of time.

TS SYNC FAULT Synchronization lost on uplink or downlink TRA or PCU channels.

ABIS PATH OVERLOAD An overload situation on Abis path is detected.

LAPD SIGNALLING OVERLOAD There has been an overload situation on the reporting TRXC's signalling queue for a longer period of time.

LAPD PAGING OVERLOAD There has been an average value of discarded paging messages on RSL link that exceeds 10% during one hour.

RF PERFORMANCE Degraded Radio Frequency (RF) performance has been detected. This may indicate the problem with TX path, but it may be due to other reasons. On-site maintenance may be required to determine the fault type.

FORLOPP RELEASE A fault has occurred within the BSC software leading to a Forlopp release. Automatic recovery procedures are taking place. Report to your Ericsson Support Office. Alternatively, this alarm is issued as an advisory following a command ordered Forlopp release of a TG. In either case, the alarm is automatically ceased following successful recovery.

OPERATOR CONDITION A condition has arisen due to operator intervention.

RADIO X-CEIVER ADMINISTRATION MASTER TF NOT DEFINED A TG cluster has been defined and taken into operation without an administrative timing master defined.