363-206-204
Release 6 Installation Tests
Issue 9 October 1998
5-3
The following LEDs are located on the user panel:
The following LEDs are located on the circuit packs:
LED Description
CR (Critical) Potential loss of service to 96 or more DS0 cus-
tomers
MJ (Major) Potential loss of service to fewer than 96 DS0 cus-
tomers
MN (Minor) A non-service affecting failure
PMN (Power Minor) A switch from AC power to battery backup
ACO (Alarm Cutoff) Audible office alarms are silenced and parallel
telemetry indications are cut off
PWR ON (Power On) The shelf is receiving a -48 V source
ABN (Abnormal) An abnormal condition initiated through
craft interface terminal (CIT) command
(that is, loopback, forced manual switch)
NE ACTY (Near-End Activity) One of the above conditions is present at this shelf
FE ACTY (Far-End Activity) One of the above conditions is present at a far-end
shelf
LED Description
FAULT(solid) Circuit pack is failed
FAULT (flashing) Circuit pack has lost its input signal*
ACTIVE Pack is carrying service**
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