Operational Conditions - Ericsson CME 20 R6.1 Reference Manual

Restart and Recovery
•
Internal Configuration
21.2.4 Sub-RU Restart and Recovery
The sequence of actions initiated in a Sub-RU with processor at restart
and recovery are summarised below:
•
Software Start
•
Wait Link Establish from Main RU
Subsequent actions in a Sub-RU are controlled by the superior Main
RU. These subsequent actions include:
•
RBS Database Update
21.3

Operational Conditions

21.3.1 Operation and Maintenance
Maintenance functions related to Restart and Recovery are described in
chapter Operation and Maintenance Terminal.
The visual indicators relevant to Restart and Recovery are described in
chapter Operation and Maintenance Support.
All of the visual indicators associated with an RU are temporarily
turned on for a minimum of 2 seconds during the initial restart of that
RU. This allows visual identification of any faulty indicators.
21.3.2 Capabilities
The start time is defined as the time elapsed from when the power is
turned on (after having been off), or from the reception of reset (reset
button pushed or BSC reset order received) to when the RBS is ready to
enter remote mode.
Depending on the reason for restart, certain actions must be taken
during start-up, which causes variation in start-up time.
A special case of restart is when the BSC orders a reset. Then the total
start-up time for the RBS or CMRU is maximum 8 seconds.
142 (306)
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The RBS database will be updated to reflect the contents
of the RU database and the RU databases of any
Sub-RUs associated with this DMRU
−
Internal configuration parameters are fetched from the
data base and used in the system
−
The RBS database will be updated to reflect the contents
of the RU database
−
Further information is found within the context of
Installation database handling
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1998-08-13