ARINC 717

ARINC 717 defines a digital flight data recorder, with its inputs and outputs. It replaces the older ARINC 573 characteristic, which was based on analog inputs. It allows for more data and real-time recording.

Digital Expandable Flight Data Acquisition and Recording System (DEFDARS) flight recorder output signals include the following:
 * 1) Primary Output – ARINC 717 Harvard biphase encoding
 * 2) Auxiliary Output – ARINC 429 (DITS) bi-polar encoding

ARINC 747 defines an alternate solid state recorder that can be used with an ARINC 717 installation.

DEFDARS includes the following component functions
 * 1) Digital Flight Acquisition Unit (DFAU)
 * 2) Digital Flight Data Recorder (DFDR)
 * 3) Accelerometer
 * 4) Flight Data Entry Panel (optional) for entry of flight data

History

 * Started in 1979.
 * Last revision, -15, June 6, 2011