Lucent Technologies DDM-2000 OC-3, Installation Manual

Page: 347 / 492

363-206-204
Releases 9 and 11 Installation Tests
Issue 9 October 1998 8-15
If settings differ from the default values shown in the table, use the
set-
fecom
command to change them to the values shown.
For shelves containing 27G-U OLIUs in the Main or Function Unit positions
(i.e. FiberReach host nodes), when only one of the two OC-1s provided by
the 27G-U is to be used, set the other OC-1 to the not monitored state and
disable it’s FECOM. Refer to Figure 8-3.
For example, with a 27G-U in function position a-1, and OC-1 #2 will not be
used, enter the following command:
set-state-oc1:fn-a-1-2:ps=nmon
;
Then enter the command:
set-fecom:dcc-a1-2:com=disabled
;
Procedure for Installation
1. Refer to Figure 8-1 to understand the method of connecting ring fibers.
Your ring, will differ from Figure 8-1 if you have more or less than three
nodes, thus use an appropriate figure, adapted to your ring configuration.
Use the following instructions, adapted to the size of your ring, to connect
fibers. Connect fibers as follows:
NOTE
:
If the proper LBO is not known for each optical fiber span see DLP-514 of
the 363-206-202,
DDM-2000 OC-3 Multiplexer User/Service Manual to
determine the LBO needed.
NOTE
:
After fiber connection is completed around the ring, continued flashing of
the fault LED on 22 Type OLIU circuit packs may indicate incorrect connec-
tions.
2. To obtain a map of the SONET network to verify fiber connections around
the ring, at Site1NE1 issue the command
rtrv-map-net;
Using Figure 8-1 (or an adapted version to match your ring) at Site1NE1,
verify the following:
Location Slot Connector <--> Location Slot Connector
Site1NE1 M1 OUT <--> Site2NE1 M2 IN
Site1NE1 M1 IN <--> Site2NE1 M2 OUT
Site2NE1 M1 OUT <--> Site3NE1 M2 IN
Site2NE1 M1 IN <--> Site3NE1 M2 OUT
Site3NE1 M1 OUT <--> Site4NE1 M2 IN
Site3NE1 M1 IN <--> Site4NE1 M2 OUT
Site4NE1 M1 OUT <--> Site1NE1 M2 IN
Site4NE1 M1 IN <--> Site1NE1 M2 OUT