The first FBU needs to be installed on 1, the second on 2 and the third
on 3.
Figure 126: Installing the FBU (A)
▶ Place the FBU holder near the FBU installing position on the FBU module
(see circles).
▶ The double-headed function arrow marks the direction for engaging or
releasing the FBU holder (see orange circle).
RX4770 M5
Expansion cards and backup units
Upgrade and Maintenance Manual
229