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

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NTP-039
: Circuit Order 363-206-285
Page 22 of 32 Issue 2, February 2000
DDM-2000 OC-3 M
ULTIPLEXER
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
28. The example 4-node configuration now looks like that shown in
Figure 17. Steps completed between the last RT and next to last
RT are repeated as each span is converted to a ring configuration.
Figure 17 – DDM-2000 OC-3 Drop or Add/Drop Network to Ring Upgrade
29. At Node 1 (CO) and Node 2, disconnect fiber from MAIN 2(P)
OUT at the CO and MAIN 1 IN at Node 2. Disconnect fiber from
MAIN 2(P) IN at the CO and MAIN 1 OUT at Node 2. (See
Figure 18.)
30. At the next-to-last Node (Node 3), use the
switch-line:fn-c:pri=manual
command to switch service
to the protection line (
fn-c-2 OLIU active
at Node 3). At the
last Node (Node 4), use the
switch-line:main:pri=manual
command to switch service to the protection line (
main-2 OLIU
active
at Node 4). (See Figure 18.)