363-206-204
Releases 9 and 11 Installation Tests
Issue 9 October 1998
8-3
The following LEDs are located on the circuit packs:
* A flashing FAULT LED on the OHCTL indicates a loss of DCC communications
with the FAR-END SYSCTL
** DS1 packs do not have an ACTIVE LED but are assumed to be in-service
unless other information is provided through the CIT.
The following LEDs are located on the user panel:
LED Description
FAULT(solid) Circuit pack is failed
FAULT (flashing) Circuit pack has lost its input signal*
ACTIVE Pack is carrying service**
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 DC source
ABN (Abnormal) An abnormal condition initiated through
craft interface terminal (CIT) command.
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
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