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Chapter 17 Crossbar Unit Replacement 17-7
10. While grasping the eject/lock levers, properly align the crossbar unit with the slot
guide, and then gently insert it.
Caution – If you are unable to obtain a torque screwdriver, finger tighten the clock cable
connectors. Do not secure them with a regular screwdriver.
Caution – Do not forcibly push the crossbar unit when inserting it, even if it is not moving
smoothly. You may fail to insert the crossbar unit due to the presence of any obstruction in a
slot or any problem with a connector pin; and if you forcibly insert it, serious damage may
result.
11. Lock the eject/lock levers to affix the crossbar unit to the back plane.
12. Push the eject/lock levers as far as they will go, and then push the knob screws on the
right and left eject/lock levers to lock them in position. If the knob screws remain in
position, the crossbar unit is securely mounted.
13. If an M9000 server expansion cabinet is installed, connect cables for connecting the
base cabinet to the expansion cabinet crossbar unit.
a. To connect the cables, hold the cable connector covers and insert the connectors
perpendicularly with respect to the front plate of the XB unit until they come into
contact with the front plate.
b. Then, while ensuring that the cable weight does not cause the cable connectors to
become slanted, fix the data cable connectors in position with a standard
screwdriver while supporting the cable connector with one hand.
c. Use a torque screwdriver to secure the clock cable connector with the torque of
0.2N•m (2.0kgf•cm).
Note – After fixing the cable connectors in position, confirm that the connector housing is
securely affixed to the XB unit, and that it is not slanted sideways, upward or downward. If
the cable connectors are affixed slanted, the affixed part will become unstable, leading to
communication failure.
Caution – Do not hang or yank the cable. Especially do not while the one side is
connected.
Caution – Tighten or remove the cable screws evenly on both sides.