Lucent DDM-2000 OC-3 User And Service Manual page 345

363-206-285
Issue 2, February 2000
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Ensure both TGS/TG3 circuit packs are installed. Then, use the
switch-sync:s=circuitpack,pri=manual command to
switch to the protection TGS/TG3 circuit pack, in TIMING slot 2, if
not already ACTIVE. Use rtrv-sync: command to verify that
the protection TGS/TG3 circuit pack is ACTIVE. Unplug TGS/TG3
circuit pack in TIMING slot 1.
10.
NOTE:
This procedure uses an example configuration as shown in
Figure 1. Your configuration may differ, but the procedures
are the same for any drop or add/drop configuration. "Add"
traffic is defined in relation to a "head-end" node. A head-end
node is determined for the network and should be the node
that terminates the most traffic. In this procedure, the
head-end node is Node 1 (CO) and other nodes are
designated as Node 4 [last RT, (RTn)], Node 3 [next-to-last
RT, (RTn-1)], and Node 2 (RTn-2). All traffic that does not
terminate at the CO is referred to as "Add" traffic. "Drop"
traffic is defined as traffic that terminates at the CO. See
Figure 1.
This procedure will convert the first two nodes (Node 1 and
Node 2) to a ring, then the last (Node 4) and first (Node 1)
nodes, and then continue to work back through the network
from last node to first.
DDM-2000 OC-3 M
Circuit Order:
ULTIPLEXER
NTP-039
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