DLP-559: Detailed Level Procedure 363-206-285
Page 5 of 12 Issue 2, February 2000
DDM-2000 OC-3 MULTIPLEXER
3. Verify system configuration is same as specified on work order or circuit order.
4.
NOTE:
Cross-connections consist of drop and pass-through connections. For
example in Figures 4 through 7, drop connections are made at OC-3 or
OC-12 Nodes 1 and 3. Pass-through cross-connections are made at
Node 2 in the network. Also, cross-connections must be made in all
interconnected rings, including other DDM-2000 OC-3 rings, DDM-2000
OC-12 rings, and the FT-2000 OC-48 rings, as required. See
ent-crs-( ) command in the Commands and Reports section of
Volume 1 of this manual.
From work order or circuit order, determine the terminating (drop) nodes for
the service being established.
5. From work order, circuit order, and the sketch made in Step 1, determine the
pass-through nodes for the service being established.
6. From work order or circuit order, determine the host OC-48 node(s) that
connects to the OC-3 or OC-12 ring(s) or extensions.
7. Use the rtrv-eqpt: command at each node in the network to verify that
each shelf is properly equipped for the service being established. Ensure that
OLIU circuit packs are installed in the correct slots in the host OC-48 nodes.
8.
NOTE:
Cross-connections supporting DS1 services may be either STS1 or
VT1.5 cross-connections in DDM-2000 OC-3 or OC-12. Only STS-1
cross-connections are allowed in FT-2000 OC-48. In an OC-3 or OC-12
shelf, use VT1.5 cross-connections for DS1 services if you expect to
cross-connect only a portion of the VT1.5 signals in the STS-1 channel.
If STS1 cross-connections are made at an OC-3 or OC-12 shelf, there is
a fixed mapping of all 28 VT1.5 cross-connections to a specific shelf
group [see ent-crs-sts1: command].
NOTE:
The following commands may be used to delete, enter, and retrieve
cross-connections: dlt-crs-vt1, dlt-crs-sts1, ent-crs-vt1,
ent-crs-sts1, rtrv-crs-vt1, and rtrv-crs-sts1.Seethe
Commands and Reports section of each system manual for a description
of commands.
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