DLP-512: Detailed Level Procedure 365-575-102
Page 6 of 14 Issue 8.0, July 2002
17. If appropriate, install/connect the selected jumpers at the LGX. If keyed bicon-
ics are used, align arrows properly.
18. Label the jumpers.
19. Route the optical fibers from the LGX to the protective channels located on
each side of the bay. If the fibers are to be connected to OC-3/OC-12 circuit
packs located in slots 1A through 4B then route the fibers down the loft side of
the bay. If the fibers are to be connected to OC-3/OC-12 circuit pacts located
in slots 5A through 8B then route the fibers down the right side of the bay.
Refer to Figure 6.
20. The fiber jumpers should hang without any obstructions in the fiber protection
channel. The jumpers should be routed out of the side of the protection chan-
nel near the middle so that they can be properly dressed in the Low Speed
System Controller Shelf. Make sure the bend radius of the fiber is not
exceeded when dressing the fiber. Fibers should never be directly laced in
place or cable tied. If secure dressing is not achieved with the steps above
then place the fibers in protective tubing and lace the tubing to the protective
channel.
21. Fibers enter the Low Speed Shelf near the middle front of the shelf and should
be routed up to the optical packs through the notches along the bottom edge of
the shelf. Do not crimp the fiber and maintain bend radius greater than the
minimum.
22. Optical fibers should be left with enough slack next to other circuit packs slots
for later connection. Be sure to tuck fibers into the trough so that attaching and
closing the shelf cover does not crimp the fiber.
23. The protective channel will be covered when the stile strips are installed.
LBO Selection
24. Does this Low Speed application use LAA10 or T939A Circuit packs?
If NO, then continue with Step 28.
If YES, then continue with Step 25.
25. Measure, and record for office records, the received optical power. Be sure to
set the optical power meter for the wavelength of the light to be measured,
1300nm.
NOTE:
Table F shows the appropriate LBO value to select when the measured
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