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ManualsBrandsAastra ManualsCell PhoneAMC 3.0
919293949596979899100
21/1551-ASP 113 01 Uen N2 2014-01-28 99
O
PERATION AND MAINTENANCE
The alarm class 0 (cleared) is special. When the alarm sender notices
that an alarm condition no longer exists, the sender will clear the alarm
and the alarm class changes to 0.
Alarm Generation
The alarm classes (except alarm class 4) are assigned a limit for incre-
mental alarm. This means that an incremental alarm is generated when
a predetermined number of alarms with a certain alarm class have been
stored in the alarm log. The incremental alarm is then assigned the next
higher alarm class. The limits for incremental alarms are specified in a
configuration file.
An alarm is also generated when the alarm log risks becoming full.
Alarm Actions
Alarm actions can be configured to run when an alarm is stored in the
alarm log, or when an alarm changes severity, for example, is cleared.
The alarm action can be any program or script running on Linux. Exam-
ples of actions that can be taken are:
• Sending e-mail or SMS with alarm information
• Updating web pages.
Alarm Presentation
Alarms can be presented in the following ways:
• As an alarm log printout (can be in any of eight available formats)
• As continuous alarm log view
• As e-mail or SMS
• On a network management center/workstation
Alarm Clearing
When the system detects that an alarm condition (fault) no longer exists,
the alarm log is informed and the alarm is cleared.
A cleared alarm has the alarm class 0 but information on the old class is
kept.
Alarm Noticed
When an alarm is noticed and the correction work has started, the alarm
is marked as noticed. It is possible to add a comment when entering the
notice command. The comment is stored with the alarm in the alarm log.
Alarm Input/Output
The system can monitor external alarms via MGU or ALU board. With
the use of this hardware external alarms (like fire alarms) can be
reported in the alarm log of MX-ONE Telephony System. Alarms in
MX-ONE Telephony System can also be connected to alarm outputs
(that for instance can ring an alarm bell).