Lucent DDM-2000 OC-3 User And Service Manual page 212

363-206-285
Issue 2, February 2000
DO ITEMS BELOW IN ORDER LISTED . . . . .FOR DETAILS, GO TO
11.
NOTE:
A CP removed alarm will occur when the OLIU is removed.
An inc. OC-3 LOS (blinking FAULT LED on OLIU) alarm
will occur at the other node connected to the removed fibers.
Other nodes will receive inc. VT and STS AIS alarms.
At the starting Node (Node 1 in this example), lift the faceplate
latch and remove optical fibers from MAIN 2(P) OLIU, then
remove MAIN 2(P) OLIU.
12.
NOTE:
When the 24/29-Type OLIU is installed in this step, an
unexpected CP type status and inc. OC-12 LOS
alarm will occur. At the connecting node, an
inc. OC-3 LOS alarm will occur. When fibers are
reconnected, the unexpected CP type status is still
present at this Node and an inc. OC-12 LOF alarm will
occur. An inc. OC-3 LOF alarm will occur at the
connecting Node.
At the starting Node, install a 24/29-Type OLIU into MAIN 2(P)
OLIU slot and reconnect optical fibers.
13.
NOTE:
A CP removed alarm will occur in this step when the MAIN
1 OLIU is removed. A inc. OC-12 LOS alarm will occur at
the connecting Node with the 24/29-Type OLIU installed.
At the other end of the OC-12 optical span being established, lift
the faceplate latch and remove optical fibers from MAIN 1 OLIU,
then remove MAIN 1 OLIU.
14.
NOTE:
When the 24/29-Type OLIU is installed, an
unexpected CP type status alarm will occur. The
inc. OC-12 LOS alarm clears at both ends of the span.
The inc. VT and STS AIS alarms clear downstream.
Install a 24/29-Type OLIU into MAIN 1 OLIU slot and reconnect
optical fibers. Wait until the blinking FAULT LED goes off
before continuing.
DDM-2000 OC-3 M
Circuit Order:
ULTIPLEXER
NTP-023
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