SWITCHING Panel Flashcards

1
Q

What computers feed data to the six display units?

A

 Three Display Management Computers (DMC)

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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

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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.

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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.

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5
Q

What happens when the upper ECAM display fails?

A

 The E/WD automatically replaces the SD on the lower ECAM display.

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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

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