DLP-560: Detailed Level Procedure 363-206-285
Page 10 of 18 Issue 2, February 2000
DDM-2000 OC-3 MULTIPLEXER
8. Starting at one of the terminating nodes for the DS1/STS1 circuit being
established, use the rtrv-crs-( ) command at each node in the ring to
verify that the cross-connections specified on the work order or circuit order
may be made. For example, if the DS1 #1 low speed port in the DS1 circuit
pack in slot #2ofLOW SPEED GROUP B (b-2-1) is to be connected to
timeslot m-1-2-1 and the rtrv-crs-vt1: command shows that the
cross-connection is already established, you should determine from office
records if this port is already in-service before continuing with this procedure.
If cross-connections are already assigned or improperly assigned, refer trouble
to the organization responsible for facility design. Improperly assigned
cross-connections may have to be deleted using the dlt-crs-( )
commands.
9.
NOTE:
Channel state provisioning provides IS, AUTO, and NMON states for
VT/STS1 channels similar to the port states for DS1 ports. When a
cross-connection is made to a point of termination the channel is in the
AUTO state and alarming is disabled. The channel must receive a good
signal from either ring to cause the channel to transition to in-service (IS).
At all nonterminating pass-through nodes in the network, use the
ent-crs-vt1: or ent-crs-sts1:) command to provision pass-through
connections. [For example, to make the DS1 pass-through cross-connection
for channel m-1-2-1 in other OC-3 shelves, use the
ent-crs-vt1:m-1-2-1,m-1-2-1:cct=twoway command. To make
pass-through cross-connections for STS-1 #1 in an OC-12 shelf, use the
ent-crs-sts1:m-1,m-1:cct=twoway command.]
10. At both terminating (drop) nodes of the circuit being established, use the
ent-crs-( ) command to make the terminating cross-connections (for
example at the OC-3 node in Figures 8 and 11,
ent-crs-vt1:m-1-2-1,b-2-1:cct=twoway)
11. At the host OC-12 ring node sites, make proper cross-connections. For
example, in Figure 8 at Node 5, if STS-1 channel #1 from the OC-3 MAIN-1
OLIU is to be cross-connected to STS#1intheOC-12MAIN-B-1 OLIU then
the command ent-crs-sts1:mb-1,a-1:cct=twoway wouldbeusedto
make the cross-connection.
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