Display and control unit interface
The Display and Control Unit (DCU) has two primary controls:
• Command Button which can be rotated and pushed.
• Retract/Extend toggle switch to extend or retract the pylon.
Figure 8-2 DCU Primary Controls
The Command Button is used to:
• Control the DCU
o Rotation – move the selected window or change values.
o Push – select or enter a value.
• Control/change the desired power in the propulsion mode
Battery selection switch
The RES system can be powered from either avionic battery. The battery selection is made
by the battery selection switch, which is located next to the guarded RES master switch.