LED Interpretation
7-1Terminal Alarm Notification
7
DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
7
LED Interpretation
If a maintenance object in the system begins to fail some of the periodic tests,
the system automatically generates an alarm. This alarm indicates to
maintenance personnel that action is required to restore the system to a normal
condition. The system identifies three levels of alarms:
■ Major Alarms — Failures that cause critical degradation of service and
require immediate attention.
■ Minor Alarms — Failures that cause some degradation of service, but do
not render a crucial portion of the system inoperable. This condition
requires action, but its consequences are not immediate. Problems might
be impairing service to a few trunks or stations or interfering with one
feature across the entire system.
■ Warning Alarms — Failures that cause no significant degradation of
service or failures in equipment external to the system. Warning alarms
are not reported to the attendant console or INADS.
Alarms are communicated to the system users and technicians by entries in the
Alarm Log and the lighting of LEDs located on the attendant console, on all
circuit packs in the switch cabinets, and, optionally, on customer-designated
voice terminals.
Terminal Alarm Notification
Terminal Alarm Notification is an optional feature which displays several types of
alarms on voice terminals with administered feature buttons or the attendant
console. A maximum of ten digital and/or hybrid voice terminals may be used.
When an alarm occurs, the green status LED associated with the assigned
button will be in a steady state. The lamp may be turned off by pressing the
