NTP-031: Circuit Order 363-206-285
Page 1 of 6 Issue 2, February 2000
DDM-2000 OC-3 MULTIPLEXER
Add New LAN 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 LAN port or IMA LAN circuit pack is being
added to a group that is already in service and equipped with
MXRVO circuit packs at the 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 group
(MXRVO).
NOTE:
Three IMA LAN circuit packs can be installed in LOW
SPEED GROUP A, B,orC when the associated FUNCTION
UNITS group A, B,orC is equipped with the BBG2B
MXRVOs. Only one IMA LAN circuit pack is allowed in a
LOW SPEED GROUP, if the associated FUNCTION UNITS
group is equipped with the BBG2 MXRVOs.
NOTE:
If the DDM-2000 fails to respond in the indicated manner,
refer to Trouble Clearing: IXL-001.
From work order and office records determine which LAN
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