scope:

This document covers:

a) The ATS Facilities Notification (AFN) application;

b) The Automatic Dependent Surveillance (ADS) application;

c) The Controller Pilot Data Link Communication (CPDLC) application;

d) The ARINC 622 data communication.

Following elements are out of scope of this document:

• Ground-ground data communications between ATS Providers or between an ATS Provider and an Airline Operational Control (AOC) facility;

• Air-ground data communications between an aircraft and an AOC facility;

• Performance of the communication services and the ATS applications;

• User interfaces of the ATS applications within the aircraft and the ATS Provider facility.

PURPOSE

The purpose of this document is to define the set of requirements for the interoperability aspects of FANS-1/A (Version 1) systems. It is intended for use in conjunction with a consistent safety and performance requirement standard, other INTEROP standards, and the guidelines described in ED-78A/DO-264 for each approval type associated with the elements of the CNS/ATM system.

NOTE 1: Based on ED-78A/DO-264, INTEROP and SPR standards provide recommendations intended for government organizations, conference of governments, or agencies having statutory jurisdiction over the use and provision of air traffic services supported by data communications. These recommendations are for use by such government organizations to enunciate official policy, related to such matters, in aeronautical information publications (AIPs), notices to airmen (NOTAMs), airplane flight manuals (AFMs), and operator specifications.

Interoperability requirements are the minimum technical and functional requirements that provide the basis for ensuring compatibility among the various elements of the CNS/ATM system using a specific technology. These elements comprise the distributed communication services and ATS applications in the aircraft system, the communication service providers' system and the ATS Provider system.

NOTE 2: This document is not intended to provide requirements to standardize operational procedures in the use of this technology. Refer to appropriate safety and performance (SPR) standards.

This document will:

a) Define interoperability requirements for the communication services;

b) Define interoperability requirements for the ATS applications;

c) Allocate the interoperability requirements to stakeholders.