EFIS
EADI
EHSI
Primary
Clock
Standby
Air Data
EICAS Messages
EFI/IRS Interface Diagram
Air Data Computer (ADC) Switch (not shown):
Normal:
Left
ADC
supplies Captain's
Mach/Airspeed Indicator
and
Main Altimeter
Right
ADC
supplies First Officer's Mach/Airspeed Indicator and Main Altimeter
ALTN selects opposite ADC for above systems
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