System Alarms - Nortel 1000E Maintenance Manual

System alarms 53

Figure 13
Signaling Server LEDs
System alarms
Major and minor alarms can be displayed on the attendant console
when connected to the system. However, attendant consoles cannot
be connected to an MG 1000T and therefore cannot display MG 1000T
alarms.
Major alarms
A major alarm indicates a fault that seriously interferes with call
processing. The causes of major alarms are listed in Table 14 "Causes of
major and minor alarms" (page 54).
When an MG 1000E is equipped with a power fail transfer unit (PFTU),
a major alarm causes designated analog (500/2500-type) telephones to
connect directly to Central Office trunks. This is called a line transfer.
Minor alarms
A minor alarm indicates that the system hardware or software has detected
a fault requiring attention. The causes of minor alarms are listed in Table
14 "Causes of major and minor alarms" (page 54).
A minor alarm is indicated on attendant consoles in customer groups
affected by the fault. A minor alarm indication on the console is an
optional feature, enabled and disabled on a customer basis through data
administration procedures.
Nortel Communication Server 1000
Communication Server 1000E Maintenance
NN43041-700 02.07 22 December 2009
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