ARINC 629

The ARINC 629 computer bus was introduced in May 1995 and is used on aircraft such as the Boeing 777, Airbus A330 and Airbus A340[1][2] as well as the Airbus A320 series.[3]

The ARINC 629 bus operates as a multiple-source, multiple-sink system; each terminal can transmit data to, and receive data from, every other terminal on the data bus. This allows much more freedom in the exchange of data between units in the avionics system. ARINC 629 has the ability to accommodate up to a total of 128 terminals on a data bus and supports a data rate of 2 Mbit/s.

The ARINC 629 data bus was developed by the Airlines Electronic Engineering Committee (AEEC) to replace the ARINC 429 bus. The ARINC 629 data bus was based on the Boeing DATAC bus.[4]

References
  1. "ARINC 629 Digital Data Bus Specifications".
  2. John Keller. "The coming revolution in commercial avionics data networking"
  3. "Electronic Instrument System 2 - EIS2".
  4. Cary Spitzer. "The Avionics Handbook". Daniel A. Martinec. "Chapter 2: ARINC".
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