SWITCHING Panel Flashcards
1
Q
What computers feed data to the six display units?
A
Three Display Management Computers (DMC)
2
Q
What do each of the DMCs normally supply?
A
- DMC 1 – Captain PFD, Captain ND, “Upper” ECAM DU (E/WD), and “Lower” ECAM DU (SD)
- DMC 2 – First Officer PFD, First Officer ND
- DMC 3 – Backup
3
Q
If there are any automatic functions of the DMCs in the event of a failure, explain the automatic logic.
A
If DMC 1 fails (or DMC3 if “CAPT 3” was selected), DMC 2 automatically drives the ECAM.
4
Q
What are the indications on the DUs if a DMC has failed?
A
“INVALID DATA” will be displayed in the respective EFIS/ECAM display unit.
5
Q
What happens when the upper ECAM display fails?
A
The E/WD automatically replaces the SD on the lower ECAM display.
6
Q
If both the E/WD and SD display units fail, how can the E/WD information be displayed?
A
By selecting the ECAM/ND XFR switch to CAPT or F/O
