IBM 7133 D40, Service Manual

Page: 134 / 306

i. Refer to Figure 47.
j. Connect the wrap cable
1
to the connectors of the optical extender.
Does the Receive light of the optical extender come on?
NO
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. Exchange the optical extender for a new one.
d. Observing the identifications of the fibre optic cables, connect the
cables to the new optical extender.
e. Go to “MAP 2410: 7133 Models D40 and T40 – Repair
Verification” on page 131 to verify the repair.
Note: If the problem remains, find another wrap cable and
adapter assembly, and repeat this step. The original wrap
cable might have failed.
1
P
a
rt
Number nnnnnnn
Class 1 Laser Product
FCC Class A - See Man
ual
Figure 47. Wrapped Optical Extender
116
7133 Models D40 and T40 Service Guide