ARINC735C 735C Traffic Computer, ACAS-X, and ADS-B Functionality

This document describes Airborne Collision Avoidance System X (ACAS X) functionality and provides the necessary interface definitions and protocols to accommodate the requirements of RTCA DO-385: Minimum Operational Performance Standards for Airborne Collision Avoidance System X (ACAS X) ACAS Xa and ACAS Xo) (latest version applies) and the requirements of RTCA DO-386: Minimum Operational Performance Standards for Airborne Collision Avoidance System X (ACAS X) ACAS Xu (latest version applies).

Additionally, this document describes interfaces and protocols necessary to accommodate Cockpit Display of Traffic Information (CDTI) based on the reception of Automatic Dependent Surveillance-Broadcast (ADS-B) data and Traffic Information Services–Broadcast (TIS-B) data. The equipment becomes ACAS X with ADS-B IN applications added, as defined by RTCA DO-317C: Minimum Operational Performance Standards for (MOPS) for Aircraft Surveillance Applications (ASA) Systems (latest version applies).

ACAS X hybrid surveillance is an integral part of RTCA DO-385 and DO-386 MOP.