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

Page: 1640 / 2536

NTP-036
: Circuit Order 363-206-285
Page 2 of 4 Issue 2, February 2000
DDM-2000 OC-3 M
ULTIPLEXER
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
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 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.
5.
NOTE:
If the other terminating node for the EC-1 interface is
equipped with DS3 circuit packs, then STS1
cross-connections will be present. If the other terminating
node(s) for the EC-1 interface is equipped with DS1 circuit
packs, then either STS1 or VT1.5 cross-connections will be
present. The
rtrv-crs-sts1:
command retrieves the
STS-1 Cross Connect Report
. The
rtrv-crs-vt1:
command retrieves the
VT1 Cross Connect Report
.
From the work order or
rtrv-crs-( )
command, determine the
cross-connections for circuit being discontinued. Use the
rtrv-crs-( )
command at each node in the network to obtain
the
STS-1 Cross Connect Report
or
VT1 Cross Connect
Report
.
6. !
CAUTION:
Deleting wrong cross-connections may interrupt service.
NOTE:
STS1E slots cannot be unequipped without an alarm until all
cross-connections are removed. The cross-connections
must be removed first before removing circuit packs.
Remove the cross-connections from the terminating nodes
first, then remove the pass-through cross-connections at the
non-terminating nodes. A Critical or Major alarm may occur
when the first cross-connection at the terminating node is
deleted and clear when the other terminating
cross-connection is deleted.