Lucent Technologies DDM-2000 OC-3, User & Service Manual

Page: 1803 / 2536

NTP-052
: Circuit Order 363-206-285
Page 1 of 6 Issue 2, February 2000
DDM-2000 OC-3 M
ULTIPLEXER
Discontinue End-to-End T1 Service
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
1.
!
CAUTION:
DDM-2000 circuit packs contain static sensitive components
which can be damaged by electrostatic discharge. A static
ground wrist strap must be worn when handling the circuit
packs. See electrostatic discharge considerations in Trouble
Clearing: TAD-100
.
!
CAUTION:
When a T1EXT circuit pack is switched to protection,
removal of any other T1EXT circuit pack in the same LOW
SPEED GROUP
will result in a loss of service to the
protected T1EXT and the removed T1EXT circuit pack.
Removal of any 177A Retainer Card in the same LOW
SPEED GROUP
will result in a degradation of service.
Determine which DS1 ports are to be discontinued and verify no
alarms exist on the system.
2.
NOTE:
The following operation may activate the office major, minor,
or no alarm. The audible alarm may be suppressed by
depressing the ACO button.
At the T1 terminating nodes, remove the DS1 signals associated
with the port(s) being discontinued. (FAULT LEDs begin flashing
on T1EXT circuit pack with signals removed.)
TAD-100