363-206-204
Release 7 Installation Tests
Issue 9 October 1998
6-3
** 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:
The following pushbuttons and display are located on the User Panel and
SYSCTL. See Figure 6-2.
LED Description
CR (Critical) Potential loss of service to 96 or more DS0 customers
MJ (Major) Potential loss of service to fewer than 96 DS0 custom-
ers
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 teleme-
try 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
LED Description
ACO (Alarm Cutoff) Silences existing audible office alarms and parallel
telemetry indications
UPD/INIT (Update/Initialize) Used to initialize SYSCTL upon replacement or update
shelf equipment list after circuit pack 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 and
alarms recently being displayed on the local user panel
LEDs. Also may display the software version number
currently running in the SYSCTL
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