TX2550 M4 Upgrade and Maintenance Manual 335
Expansion cards and backup units
9.7.1.2 Preparing the FBU02 (EP4x0i)
Figure 234: Installing the FBU in the FBU holder
Ê At a slight angle, fit the FBU under the both retaining brackets of the FBU
holder as shown
Ê Push in the FBU until it locks in place.
Ê Ensure that the FBU is properly seated in the FBU holder.
Figure 235: Connecting the FBU adapter cable to the FBU
Ê Connect the FBU cable to the FBU adapter cable.