Installation and Maintenance Manual - Aastra 5000 AMT/PTD/PBX/0058/4/6/EN
Maintenance 01/2011 Page 397
Error messages
The CPU card centralises and broadcasts all the statuses of each of the iPBX
subassemblies and peripheral lines or networks associated with Aastra Management
Portal.
The AMP summarises all the results and presents them in the form of error messages
which appear in the operating software log.
The error messages are used to inform the operator when important events have been
detected.
Nota : The logbook displays additional information concerning service records, charge
records, etc.
7.2.3 Preventive maintenance
This is performed at predefined intervals or according to recommended criteria, in order to
reduce the probability of failure or degradation of the system's operation.
It includes:
• Some preventive control operations
• Some preventive replacement operations
7.2.4 Corrective maintenance
This applies following failure of an item of equipment or subassembly.
A corrective maintenance operation is initialised:
• By the operator, following the display of an alarm (error message) on the AMP
• by the operator on site, after detection of an anomaly during a preventive maintenance
operation or a fault signalled by an indicator,
• following an operating anomaly reported by the user.
The Table in section 7.3.1 lists the correspondence between an error message and the
subassemblies involved.
Corrective maintenance comprises three types of procedure:
• fault localisation,
• testing,
• replacement.
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