IBM 7133 D40, Service Manual

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YES
a. Remove the wrap cable from the optical extender, and do
whichever of the two following actions is appropriate:
v
If the wrap cable is 400 mm (15 in.) long, connect each of its
ends to the wrap adapter to make a closed loop.
v
If the wrap cable is 150 mm (6 in.) long, connect one end to the
wrap adapter, then install a protective cover at each end of the
complete wrap cable and adapter assembly.
b. Place the wrap cable and adapter assembly into its plastic bag,
and return it to the place where it is normally kept.
c. Observing the identifications of the fibre optic cables, reconnect
the cables to the optical extender.
d. Go to step 7.
Step 7. (from step 6)
Is a multi-mode conditioner present in the optical link?
NO Go to step 9.
YES
a. In the next step, you are going to disconnect the main fibre optic
cables. Before you do so, note the identifications of the main fibre
optic cables to ensure that you reconnect them correctly later.
b. Refer to Figure 48.
c. Disconnect the main fibre optic cables
1
from the multi-mode
conditioner.
d. Find the wrap cable and adapter assembly that is provided with
the optical extender.
e. Remove the wrap cable and adapter assembly from its plastic
bag.
f. If the wrap cable and adapter assembly has a protective cover at
each end, remove those covers.
P
a
rt
Number nnnnnnn
Class
1 Laser
Product
FCC Class
A - See Man
ual
1
1
Equipment
Cable
Plant
Figure 48. Multi-Mode Conditioner and Main Fibre Optic Cables
Chapter 2. Problem Determination Procedures
117