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

Page: 1644 / 2536

363-206-285 Circuit Order:
NTP-037
Issue 2, February 2000 Page 2 of 4
DDM-2000 OC-3 M
ULTIPLEXER
DO ITEMS BELOW IN ORDER LISTED . . . . .FOR DETAILS, GO TO
3.
!
CAUTION:
To minimize "hits" on in-service ports on T1EXT circuit packs
having a port added, it is recommended that a CIT be used
to manually switch (using the
switch-ls:
command) the
T1 to protection if the T1EXT circuit pack is removed or to
set channel options without removing the circuit pack.
!
CAUTION:
If the protection T1EXT circuit pack is not available for a
protection switch, removing a service T1EXT circuit pack will
interrupt service on all ports on that circuit pack. If a CIT is
available, use the
rtrv-state-eqpt:
command to check
the status of the protection switch.
!
CAUTION:
No service LOW SPEED slot locations should be left empty
in groups equipped with MXRVO and protection T1EXT
circuit packs.
!
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.
Condition T1EXT circuit pack or port for new T1 service being
added.
4. At each T1 terminating node, use the
set-t1:
command to set
the characteristics of the T1 port being established, if not already
performed.
5. At each T1 terminating node, make the appropriate cable
connection(s) to the T1 connection point(s) for the circuit(s) being
added.
6. Verify that no LEDs or alarms are activated. If any LEDs or alarms
are activated, refer to Trouble Clearing: IXL-001 and follow the
appropriate trouble-clearing procedure.