IBM 7133 D40, Руководство по обслуживанию

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Step 19. (from step 16)
The disk drive module is receiving SSA signals correctly.
Have you checked both ends of the optical link?
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. Observing the identifications of the fibre optic cables, reconnect
the cables to the optical extender.
d. Find the optical extender that is at the other end of the link.
e. Go to step 2 on page 111.
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. Exchange the optical extender for a new one.
d. Observing the identifications of the fibre optic cables, reconnect
the cables to the optical extender.
e. Go to “MAP 2410: 7133 Models D40 and T40 – Repair
Verification” on page 131 to verify the repair.
130
7133 Models D40 and T40 Service Guide