TAP-101
: Trouble Clearing 363-206-305
Page 6 of 10 Issue 3, June 2000
DDM-2000 F
IBER
R
EACH
N
ARROWBAND
S
HELF
5. Examine the DT Server alarms and perform the item below for the lit
indicators.
FAIL
Replace DT Server with same option settings.
CLF
• If the
DT
indicator is also on, the fiber facility and transmission from the
NBS to the RT are OK. The problem is in the transmit section of the RT
(DT Server or NBS) or receive section of the WBS complex.
• To clear the
CLF
with or without the
DT
alarm, perform the following list in
the order given. If a replacement circuit pack does not clear the trouble,
reinsert the original pack and continue with the next item:
a. If the CLF alarm does not clear, use local procedures to repair fiber or
T1 facility and/or wiring troubles.
DTT
Trouble is with the NBS equipment. Proceed to NBS site and go to
Step 8
.
Comment: The DT indicator will flash if the
DSXBIU
software at the NBS
site is in the process of being updated.
CONFIG
Placement of a channel unit in the wrong slot. This alarm should not be lit
when troubleshooting the DDM-2000 NBS feature because this indicator lights
during craft personnel activity with an DT Server or CIT at the RT or when a
channel unit is installed at the RT or NBS. The
CONFIG
indicator should not
be left lit when working with channel units at the RT. If
CONFIG
and
DT
are
both lit, the channel unit installation trouble is at the NBS. If only
CONFIG
and
no other indicators are lit, check RT and NBS for channel unit conflict.
Comment: Refer to the NBS slot restrictions and alarm information of this
document.
6. Was trouble cleared at the RT?
If
YES
,
STOP. YOU HAVE COMPLETED THIS
PROCEDURE.
If
NO
, proceed to NBS and continue with
Step 7
.
To Next Page
Loading...