IBM Power 775 Manual page 27

Power775 CEC Drawer Rails Service Procedure
CAUTION:
This product contains a Class 1M laser. Do not view directly with optical instruments. (C028)
STEP 31 Disconnect the L-Links from the CEC Drawer being serviced if present. (some CEC Drawer
will not have L-Links). Refer to Figure 22 above. (It is important to note that we must take every precaution to
ensure that the L link do not get dirt, dust or other debris on them)
Are you are servicing a CEC Drawer that has L-Links?
If Yes, then continue to
If No, then skip to
STEP 32 Ensure that all 8 spring clips holding the OBE (Optical Backplane Enclosure) to the CEC
drawer are properly latched. Identify the 4 handles in the OBE that plug into the CEC Drawer whose CEC Rails
are being serviced.
CAUTION:
Sharp edges, corners, or joints nearby. (L006)
STEP 33 Pull out each of the 4 actuation handles until the connectors are unplugged. It is not necessary to
pull the handle out more than 1/2 inch. Figure 23 shows a method for pulling out the handles. The photo also
shows the spring clips on the right side of the OBE, holding the 4 sections of the OBE to the CEC drawers.
STEP 34 Detach the OBE section of the CEC drawer being service as follows.
STEP 35 Press in the 2 spring clips on each side of the optical backplane enclosures, to de-latch the OBE
from the CEC Drawer being serviced.
PN: 41U8495, EC N44172
STEP 32
STEP 37
Figure 23 Optical Backplane Enclosure
This is a correctly
latched spring clip
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