ARINC 429 is a standardized data-bus protocol designed specifically for use in aircraft cockpits. Modern aircraft are extremely complex machines and cockpits often contain several different computerized systems. ARINC429 makes it possible for sophisticated avionics systems of different types and from different manufacturers to coexist and work together as a single cohesive unit in the aircraft cockpit setting.
From autopilot systems to navigation computers and GPS systems, from fuel management systems to cabin oxygen and climate controls, there are many different computer systems in the instrument panel and many of these must interface with each other in order to perform their functions.
