Lucent Technologies DDM-2000 OC-3, Installation Manual

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363-206-204
Release 8 Installation Tests
Issue 9 October 1998 7-3
The following LEDs are located on the user panel:
The following pushbuttons and display are located on the User Panel and
SYSCTL. See Figure 7-2.
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
ACO (Alarm Cutoff) Silences existing audible office alarms and parallel
telemetry indications
UPD/INIT (Update/Initial-
ize) Used to initialize SYSCTL upon replacement or update
shelf equipment list after circuit pack removal or signal
removal
FE SEL (Far-End Select) Used to display the LEDs activated at a site
in the network
7-Segment Display Identifies the site address of the system status
presently being displayed on the local user panel LEDs.
Also may display the software version number currently
running in the SYSCTL