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260 Maintenance Procedures for Avaya Communication Manager 3.0, Media Gateways and Servers
Maintenance circuit pack LEDs
TN775D PN maintenance circuit packs have seven LEDs on their front panels. The top three
LEDs are the standard group of red, green and yellow, and indicate the status of the circuit
pack. The green LED on TN775Ds blinks faintly once per second, indicating continual
self-testing.
The second group of three LEDs, labeled “ALARMS”, reflects maintenance conditions
throughout the system and indicates alarms reported against other components, as shown in
Table 65: Maintenance circuit pack LED interpretation
on page 260.
These LEDS are illustrated Figure 1: TN775 circuit pack LEDs on faceplate
on page 261.
Table 65: Maintenance circuit pack LED interpretation
LED
color
State Level/
Function
Interpretation
Red flashing MAJOR Major alarm against a component in the same cabinet.
solid MAJOR Major alarm against a component in another cabinet.
solid MINOR Minor alarm against a component in another cabinet.
flashing MINOR Minor alarm against a component in the same cabinet.
Yellow flashing WARNING Warning alarm against a component in the same
cabinet.
solid WARNING Warning alarm against a component in another
cabinet.
Green on ACK Acknowledged; alarm has been reported.
Red on EMERGENCY
TRANSFER
Emergency transfer has been invoked. This occurs
upon power-up as well as during disabling failures.