NTP-037: Circuit Order 363-206-285
Page 1 of 4 Issue 2, February 2000
DDM-2000 OC-3 MULTIPLEXER
Add New T1 Service
(Group Already In Service)
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
1.
!
CAUTION:
DDM-2000 circuit packs contain static sensitive components
which can be damaged by electrostatic discharge. A static
ground wrist strap must be worn when handling the circuit
packs. See electrostatic discharge considerations in
Trouble
Clearing: TAD-100
.
NOTE:
This procedure assumes that the DDM-2000 is in service
and that a new T1 port or T1EXT circuit pack is being added
to a LOW SPEED GROUP that is already in service and the
corresponding FUNCTION UNITS group is equipped with
MXRVO circuit packs at the T1 terminating end(s). If proper
circuit packs have not been installed and the system is in
service on other groups, refer to System Turnup/Circuit
Order: IXL-001 for procedures to add a new FUNCTION
UNITS group (MXRVO).
NOTE:
If the LOW SPEED GROUP is to be equipped with any
T1EXT circuit packs, both service and protection MXRVO
circuit packs must be installed in the corresponding
FUNCTION UNITS group. Also, if T1 protection is required
and service T1EXT circuit packs are to be installed, a T1EXT
circuit pack must first be installed in the protection 8(P) slot.
NOTE:
If the DDM-2000 fails to respond in the indicated manner,
refer to Trouble Clearing: IXL-001.
Determine which T1 ports/slots are to be put into service and
what options are to be selected.
2. 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.
TAD-100
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