User Guide

DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Reliability Systems: A Maintenance Aid
Page 6-17Processor Complex Circuit Pack LED Strategies
6
NOTE:
In addition to the standard LEDs, the Processor circuit pack has the
red major and minor alarm LEDs, an amber warning LED, a green
ack LED, and a red Emergency Transfer LED.
■ Duplication Interface Circuit Pack (PICP)(B carrier) (TN772)::
■ Duplication Interface Circuit Pack (DICP)(A carrier) (TN772):
Each Duplication Interface circuit pack has another red LED associated
with the SPE Select Switch. The purpose of the red switch LED is to serve
as a reminder that an SPE is being forced to be the Active SPE and,
therefore, the system is not duplicated. Both SPE Select Switch LEDs (one
on each Duplication Interface circuit pack) are on when an SPE is being
forced to be the Active SPE by the consistent positions of the two SPE
Select Switches. Both LEDs are extinguished when the SPE Select Switch
positions are inconsistent or when both SPE Select Switches are in the
position. In the latter two cases, the Active SPE is automatically selected
by the system software.
■ Processor Interface Circuit Pack (TN765):
Yello
w Green Red Meaning
On - - SPC in active mode
On - Maintenance running on PICP
- - On Fault on PICP
Yello
w Green Red Meaning
On - - SPC in active mode, or A carrier
Tone-Clock circuit pack active
On - Maintenance running on DICP
- - On Fault on DICP
Yello
w Green Red Meaning
On - - Link terminated at PICP
On - Maintenance running on PICP
- - On Fault on PICP