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

Page: 1505 / 2536

NTP-020
: System Turnup 363-206-285
Page 5 of 8 Issue 2, February 2000
DDM-2000 OC-3 M
ULTIPLEXER
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
10.
!
CAUTION:
No service LOW SPEED DS1 slot locations should be left
empty in groups equipped with MXRVO and protection
DS1/DS1PM
circuit packs.
!
CAUTION:
When a DS1/DS1PM circuit pack is switched to protection,
removal of any other DS1/DS1PM circuit pack or 177A
Retainer Card in the same group will result in a loss of
service to the protected DS1/DS1PM and the removed
DS1/DS1PM
circuit pack.
NOTE:
177A Retainer Cards are used to disconnect the
cross-connect wiring associated with unused service DS1
slot locations from the DDM-2000’s internal protection bus.
Install 177A Retainer Cards into all unused service DS1 slots in
groups equipped with MXRVO and protection DS1/DS1PM circuit
packs.
11. At each DS1 terminating node, use the
set-t1:
command to set
the characteristics of the DS1 port of the circuit being established.
12. At each DS1 terminating node, make the appropriate cable
connection(s) to the DS1 cross-connect point(s) or equivalent
connection point(s) for the circuit being added.
13. 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.
NTP-034 14. If one of the terminating nodes is equipped with STS1E circuit
packs for an EC-1 interface to support DS3 services being
established, establish initial EC-1 low speed interface.
NTP-034