RX2540 M4 Upgrade and Maintenance Manual 323
Expansion cards and backup units
9.11.5.2 Removing the FBU with the holder
Figure 218: Removing the FBU
Ê Carefully disconnect the cable end on the FBU from the FBU cable (1).
Ê Lift up the green locking handle on the FBU holder (2) while sliding the FBU
holder in the direction of the arrow as far as it will go (3).
I After that, the hooks on the air duct will rest in the wide ends of the
keyhole slots on the holder.
Ê Lift the FBU holder from the riser card holder.
9.11.5.3 Disconnecting the FBU cable from the FBU
Ê Disconnect the FBU cable from the FBU, see section "Disconnecting the
FBU cable from the FBU" on page 321.