A340 ECAM Switching

A340 ECAM Switching
by jerome meriweather

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Flight Deck Photos and/or Graphic Facsimile

ECAM / ND Selector
Allows to transfer SD to either CAPT or F/O ND.

DMC Selector

AUTO - DMC 3 supplies data to both ECAM DUs. In case of DMC 3 failure, the DMC 1 automatically takes over.
1 - DMC 1 replaces DMC 3.
2 - DMC 2 replaces DMC 3.
3 - DMC 2 supplies data to both ECAM DUs ( for maintenance purpose ).