Lucent DDM-2000 OC-3 User And Service Manual page 137

NTP-010
: Circuit Order
Page 5 of 8
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
13. !
CAUTION:
No service DS1 LOW SPEED slots should be left empty in
groups equipped with MXRVO and protection DS1/DS1PM
circuit packs.
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 unequipped service DS1 slots
in groups equipped with MXRVO and protection DS1/DS1PM
circuit packs.
14. Make appropriate cable connection(s) to DSX-1 cross-connect
point(s) or equivalent connection point(s) for DS1 ports(s) being
added.
15. Verify that no LEDs or alarms are activated. If any LEDs or alarms
are activated, refer to Trouble Clearing: IXL-001.
DDM-2000 OC-3 M
Issue 2, February 2000
ULTIPLEXER
363-206-285