NTP-010: Circuit Order 363-206-285
Page 5 of 8 Issue 2, February 2000
DDM-2000 OC-3 MULTIPLEXER
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.
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