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

Page: 1499 / 2536

NTP-019
: Circuit Order 363-206-285
Page 1 of 2 Issue 2, February 2000
DDM-2000 OC-3 M
ULTIPLEXER
Discontinue OC-3 Optical Span Extension
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:
The craft interface terminal (CIT)
rtrv-map-network:
command may be used to retrieve a map of the SONET
network, including a list of the systems in the network and
how they are connected. The
rtrv-crs-( ):
command
may be used to retrieve STS-1/VT1.5 cross-connections
within the DDM-2000 OC-3 system.
Determine which optical span(s) is being discontinued.
2. Ensure service (signals) has been removed from the
DS1/DS3/EC-1 groups in the span(s) being discontinued
[NTP-011 (DS1), NTP-012 (DS3), and/or NTP-036 (EC-1)].
3.
NOTE:
The
set-ne:
command also designates a shelf as an
alarm gateway network element (AGNE). Shelves may be
assigned an alarm group number (default alarm number is
255). At least one AGNE is required per alarm group. One
primary AGNE and one backup per alarm group is
recommended. For a network greater than 16 nodes, the
AGNE and TL1 GNE should be on separate nodes.
NOTE:
It may take several minutes for the network to stabilize after
the AGNE has been changed.
If a shelf being discontinued is an AGNE, use the
set-ne:tid:agne=yes
command to establish the AGNE on
another shelf, if required. Use the
set-ne:tid:agne=no
command to disable the AGNE at the shelf being removed.
TAD-100
NTP-012 NTP-036