User Guide

DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
LED Interpretation
Page 7-7Control and Port Circuit Pack Status LEDs
7
Table 7-1. Circuit Pack Status LEDs
Equipment Type LED Description
Port Circuit
Packs
Red On briefly during power up, circuit pack reseating, resetting,
and system reset. Steadily on if circuit pack fails start-up test
or fails while in use. Off during normal operation.
Green Briefly on during circuit pack testing following power up,
circuit pack reseating, and system reset. On during periodic,
scheduled, and system technician demanded testing. Off
during normal operation.
Yellow On when any port in the circuit pack is in use, otherwise, off.
The yellow LED on the TN771 Maintenance/Test circuit pack
may blink. This has special meaning for systems using Packet
Bus. Refer to “Packet Bus” for more information.
Control Circuit
Packs
Red On briefly during power up and system reset. Steadily on if
circuit pack fails start-up test or fails while in use. Off during
normal operation.
Control Circuit
Packs
(continued)
Green On briefly during board testing following power up and
system reset. Also on during periodic, scheduled, and system
technician-demanded testing. Off during normal operation.
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