Operational Conditions - Ericsson CME 20 R6.1 Reference Manual

•
•
•
A local action never prevents the BSC from controlling the RBS.
27.2.7 Fault Reporting
On the RBS's initiative, the BSC is informed of each change in the
fault status of the RBS. Faults are reported on an MO basis. A certain
fault can be detected and reported by several MOs.
The BSC may request the current fault status for a specified MO at any
point in time.
27.2.8 Fault Logging
All changes in the fault status of the RBS are logged in a software log.
The software log is distributed on the RUs. A log entry is stored in the
RU where the fault is detected. The software log is stored in volatile
memory.
27.3

Operational Conditions

27.3.1 Operation and Maintenance
Maintenance functions related to Diagnostics and Fault Handling are
described in chapter Operational and Maintenance Terminal.
The visual indicators relevant to Diagnostics and Fault Handling are
described in chapter Operational and Maintenance Terminal.
EN/LZT 123 2697 R5A
1998-08-13
Re-initiation
−
Certain faults can sometimes be cleared by re-initiating
the offending hardware. For example, if a
communication circuit behaves unexpectedly, it is re-
initiated. Note that re-initiation of an entire RU or a
processor is not allowed as a local action.
Fault isolation
−
If a detected fault could cause equipment damage, the
equipment is isolated. For example, if a transmitter is too
warm, it is switched off.
Fault compensation
−
Certain faults can sometimes be compensated for
elsewhere in the RBS. For example, if a fan is faulty, the
speed of the other fans is increased.
−
Supervision continues after performing a local action. If
the fault ceases, the local action is stopped.
© Ericsson Radio Systems AB
— All Rights Reserved —
Diagnostics and Fault Handling
167 (306)