Lucent DDM-2000 OC-3 User And Service Manual page 147

363-206-285
Issue 2, February 2000
Discontinue End-to-End DS3 Service
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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 .
Determine which DS3 group is to be discontinued and verify no
alarms exist on the system.
2.
NOTE:
The following operation may activate the office critical, major,
or minor alarm. The audible alarm may be suppressed by
depressing the ACO button (opr-aco command).
NOTE:
One of the terminating (drop) nodes for the DS3 service may
be equipped with STS1E circuit packs to provide an EC-1
interface for the DS3 service.
At the DSX-3/STSX cable cross-connect point at the terminating
(drop) nodes, remove the DS3/EC-1 service (signal) from the DS3
group being discontinued. (FAULT LED flashes on
DS3/DS3PM/STS1E circuit packs with signal removed.)
3.
NOTE:
The UPD/INIT pushbutton on the SYSCTL is recessed to
prevent its accidental operation. You will need a small
pointed object such as a ball-point pen to operate it.
At the terminating (drop) nodes, momentarily depress the
UPD/INIT button on the SYSCTL circuit pack or use the upd
command to update the equipment list. (Flashing FAULT LEDs
go off.)
4. If a craft interface terminal (CIT) is available, use the
rtrv-state-eqpt: command to verify that the right port has
been changed from in-service (i) to auto (a) state at the
terminating nodes.
DDM-2000 OC-3 M
Circuit Order:
ULTIPLEXER
NTP-012
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