363-206-305 Trouble Clearing:
Issue 3, June 2000 Page 1 of 10
DDM-2000 F
IBER
R
EACH
N
ARROWBAND
S
HELF
TAP-101
Clear DDM-2000
NBS System Alarms, DT Server Alarms,
NE, MJ, and DIGROUP, or MN Alarms at HDT
General:
This procedure is used to clear DDM-2000 FiberReach NBS trouble reports when the
DT Carrier System is working normally (no alarm indicators on power shelf
equipment and other common units except the MJ or MN and possible Digroup
alarms). The FiberReach System feature includes the DT Server
SPQ
810/811 unit,
and the DT equipment. CO-to-RT carrier system trouble conditions will cause the DT
Server or DSXBIU displays to flash when the carrier system fails. The CLF lamp on
the DT and the CLF lamp on the DSXBIU will light when the carrier system fails. This
procedure is intended to clear trouble reports for a single NBS and starts at the
remote terminal (RT) or NBS site. Central office (CO) equipment alarms caused by
the NBS feature trouble are typically FE, MJ, DIGROUP or MN. If there are no alarms
but there are customer trouble reports, start trouble clearing at the RT unless
mechanized loop testing (MLT) test results indicate otherwise. The DT Server and the
DSXBIU alarms provide a summary of all trouble conditions and may light the same
indicators for different events. It is easy to determine the cause of a single event by
indicators on other NBS circuit packs. For multiple trouble conditions, you may clear
one trouble and the DSXBIU alarms may change or remain on because of the other
event document 363-208-202 provides procedures to clear NBS troubles from a
SLC
-2000 system. Refer to Table A in this section to identify alarm and fault
messages associated with FITL distribution modes.
NOTE:
The AUA406, AUA408, and
SPQ
810/811 DT Servers are not supported in
DDM-2000 NBS configurations.
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