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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).

This standard sets forth the characteristics of a terrain awareness and warning system intended for installation in aircraft with digital signal interfaces. Describes the desired operational capability of the equipment, the standards necessary to ensure interchangeability, form factor, and pin assignments.

Terrain Awareness and Warning System (TAWS)ý Analog addresses the need for standard TAWS installations in older aircraft that have analog equipment interfaces. The analog unit is intended as a replacement for ARINC Characteristic 594: Ground Proximity Warning System (GPWS) equipment. The document is intended to compliment ARINC Characteristic 762: Terrain Awareness and Warning System (TAWS) for later model aircraft having digital equipment interfaces.

This document defines standardized connectors intended for use on rack-mountable avionics equipment. It is aligned to the latest version of MIL-C-81659. Supplement 2 was updated to support cabin equipment applications. It corrects intermateability control dimensions that are provided for single shell plug connectors.

This Characteristic provides the definitions for the physical form and fit dimensions, the electrical interfaces, and the functions of an independent power supply for cockpit voice recorders or crash survivable recorders that combine voice with other recording functions. The RIPS is used to provide backup power that is independent of the aircraft generated power buses. Supplement 2 introduces a description of charge rates for alternate power sources and revises the electrical interface to accommodate monitoring of the RIPS status.

This standard provides design guidance for development and installation of a QAR, whose basic functions are to store digital data supplied at the output of an ARINC 573 FDAU or other similar acquisition unit and provide an easy access to this stored data for systematic ground processing for performance monitoring, maintenance monitoring or other purposes.

MCDU consists of an alphanumeric keyboard and display unit capable of interfacing with a number of aircraft systems. Dedicated keys on the MCDU provide the means for system selection with programmable soft keys. ARINC 429 interfaces are used to communicate with participating systems.

This MCDU standard consists of the original ARINC 739 definition with enhancements to allow it to be logged on to up to two systems at one time. Alternate form factors are included to allow the MCDU to be introduced into a wide variety of airframes candidate for CNS/ATM upgrade.

Mark 4 Air Traffic Control Transponder (ATCRBS/MODE S) describes an Air Traffic Control Radar Beacon System/Mode Select (ATCRBS/Mode S) airborne transponder with Extended Interface Functions (EIF). The ATC surveillance system is made up of airborne transponders and ground interrogator-receivers, processing equipment, and antenna systems. Mode S is a cooperative surveillance system for air traffic control with ancillary communications capabilities. ARINC 718A supports elementary surveillance. Provisional enhanced surveillance functionality is also defined as a customer option. The Mark 4 transponder, like its predecessor, will support TCAS functions.

Mark 4 Air Traffic Control Transponder (ATCRBS/MODE S) describes an Air Traffic Control Radar Beacon System/Mode Select (ATCRBS/Mode S) airborne transponder with Extended Interface Functions (EIF). The ATC surveillance system is made up of airborne transponders and ground interrogator-receivers, processing equipment, and antenna systems. Mode S is a cooperative surveillance system for air traffic control with ancillary communications capabilities. ARINC 718A supports elementary surveillance. Provisional enhanced surveillance functionality is also defined as a customer option. The Mark 4 transponder, like its predecessor, will support Collision Avoidance System which includes TCAS and ACAS X functions.

This document defines the Air Traffic Control Transponder (ATCRBS/Mode S) with that supports emerging Automatic Dependent Surveillance - Broadcast (ADS-B) requirements. Supplement 4 adds ADS-B Out capabilities and enables the Mode S Transponder to comply with Mode S Transponder MOPS (RTCA DO-181E and EUROCAE ED-73E) as entered into ICAO Annex 10 Volume IV and ICAO Doc. 9871.

This document defines a Head-Up Display (HUD) system intended for installation in all types of aircraft. It describes the physical form factors, fit dimensions, electrical interface definition and typical HUD functions, including the display of navigation and guidance information in the flight crew's forward field of view. The HUD accomplishes this by projecting images onto a combiner with symbology that conforms to the outside world view. Guidance for HUD architectures include single, twin, dual and HUD integrated with Primary Flight Display (PFD). This document is an practical guide for the design of federated equipment and integrated modular avionics.

This document defines a Traffic Surveillance capability for NextGen and SESAR airspace environments. Supplement 2 adds hybrid surveillance functionality. It satisfies recent updates to FAA Airworthiness Circular AC 20-151B - Airworthiness Approval of Traffic Alert and Collision Avoidance Systems (TCAS II), and Technical Standard Order TSO-119d requiring the annunciation of a hybrid surveillance failure. Supplement 2 also adds strobe program pinning, updates TCAS inputs status, improves aircraft troubleshooting, and supports recent central maintenance computer function block point updates.

This standard sets forth the characteristics of a Ground Proximity Warning System (GPWS) designed for installation in commercial aircraft. The GPWS provides audible and visible warnings or alerts when an aircraft approaches terrain or deviates below the ILS glide slope beyond the limits set into the system.

This standard sets forth the characteristics of a GPWS designed for installation in commercial aircraft. It aids pilots by providing audible and visible warnings or alerts when an aircraft approaches terrain more closely than, or deviates downward from an ILS glide slope beyond the limits set into the system.

This specification is an international standard defining the content and format of electronic files which document Flight Data Recording systems. The FRED specification is an expansion of the Flight Recorder Configuration Standard (FRCS) and is intended to provide guidelines for software systems designers and developers of ground support equipment for flight data recorders. The FRED specification has been developed to facilitate the exchange of Flight Data Recorder (FDR) documentation between aircraft manufacturers, operators, and government agencies. This specification addresses the ARINC Specification 664: Part 7, Avionics Full Duplex Switched Ethernet in numerous sections.

This document provides design guidance for the development and installation of Flight Data Recorders (FDR) which may utilize solid state memory and which may employ some means of data compression. The Flight Data Recorder will be utilized with a Flight Data Acquisition Unit (FDAU) (ARINC Characteristic 573) or a Digital Flight Data Acquisition Unit (DFDAU) (ARINC Characteristic 717) to accommodate mandatory flight data recording and other flight data acquisition needs. The document provides guidance and information to ensure customer controlled interchangeability of equipment in a standard aircraft installation and in data retrieval. The system capability was expanded to accommodate a data bus speed of 1024 words per second.

This document provides design guidance for the development and installation of a Digital Expandable Flight Data Acquisition and Recording System (DEFDARS) primarily intended for airline use. As such, this guidance will include specific requirements necessary to accommodate mandatory flight data recording and other flight data acquisition needs plus the requirements to ensure customer controlled interchangeability of equipment in a standard aircraft installation. The system capability was expanded to accommodate a data bus speed of 1024 words per second.

This document is intended to provide design guidance for the development and installation of an Enhanced Airborne Flight Recorder (EAFR). The EAFR standard addresses combinations of any or all of the following in a single Line Replaceable Unit (LRU), a Digital Flight Data Recorder (DFDR) function, a Cockpit Voice Recorder (CVR) function, a data link recording function, and an image recording function. This document does not address the overall flight data recorder system requirements but considers interface and system standards. This document does not replace ARINC Characteristic 747 which defines DFDRs. This document addresses the details of the voice recording function but does not describe the audio distribution system. It does not replace ARINC Characteristic 757 which defines CVRs. The EAFR may be used in a single or dual-redundant installation as permitted by regulation. Both configurations are addressed in this Characteristic.

This standard includes specific requirements necessary to support flight data recording and other flight data acquisition needs. Design details necessary to ensure interchangeability of equipment in a standard aircraft installation is included.