Chapter 7 - Section 2: Practical aircraft installations Flashcards
1
Q
Where do the management units (MU) receive their power from?
A
28v DC from HOT BATT BUS
2
Q
What determines whether a MU will receive and respond to messages?
A
If the messages are addressed to the aeroplane in which the unit is installed
3
Q
Which VHF transceiver will the active MU use?
A
Either the right or centre transceiver
4
Q
How is the selection of the active ACARS MU achieved?
A
- Manually, on the passenger sign module (PSM)
- Automatically, by the normal ACARS MU
5
Q
How is selection of the VHF transceiver achieved?
A
Manually through the ACARS menu on the control display units (CDU)
6
Q
Which MU is selected when the ACARS relays are energised?
A
Left ACARS MU
