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performance limitations.
4
FANS-1/A Datalink Communications Environment
2 Document Management
This document is owned and managed by the ISPACG Datalink Working Group.
The editor and principle contact point is:
Paul Radford, ISPACG DWG Chair
Manager Oceanic Systems
Oceanic Business Unit
Airways New Zealand
Tel: +64 (0)9 2568078
Cell: +64 (0)21 334806
Email: paul.radford@airways.co.nz
2.1 Amendment Record
Version Date Comments Amended by
1.0 March 7,2008 Original version N/A
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FANS-1/A Datalink Communications Environment
3 Introduction
There are many elements comprising the end-to-end Future Air Navigation System (FANS-1/A) datalink
communications environment. The purpose of this document is to provide a high level functional description of all of
the end-to-end system elements, protocols, and redundancies, as well as identify the following:
Standards and other documents applicable to FANS-1/A datalink communications.
Performance constraints.
Performance improvement options and considerations.
Planned system element upgrades and/or significant changes and associated status.
Datalink communication protocol differences, if any, among Air Traffic Service Providers, communications
service providers, aircraft, and avionics manufacturers.
FANS-1/A-Aeronautical Telecommunication Network (ATN) Convergence
Section 4 provides the standards and other documents applicable to FANS-1/A datalink communications.
Section 5 provides a high level functional description of all of the end-to-end system elements, protocols, and
redundancies, as well as identify the performance constraints and improvement options and considerations.
Appendix A provides planned system element upgrades and/or significant changes and associated status.
Appendix B provides information on datalink communication protocol differences, if any, among Air Traffic Service
Providers, communications service providers, aircraft, and avionics manufacturers.
Appendix C provides FANS-1/A-ATN convergence background and status.
6
FANS-1/A Datalink Communications Environment
4 Applicable Documents
4.1 Aircraft Communications Addressing and Reporting System Protocol
Standards and Satellite Standards:
AEEC Developed ARINC Specification 618: Air/Ground Character-Oriented Protocol Specification.
AEEC Developed ARINC Specification 619: ACARS protocols for Avionic End Systems.
AEEC Developed ARINC Specification 620: Data Link Ground System Standard and Interface Specification.
AEEC Developed ARINC Specification 622: ATS Data Link Applications over ACARS Air-Ground Network.
AEEC Developed ARINC Characteristic 741P1-9: Aviation Satellite Communication System – Part 1 –
Aircraft Installation Provisions.
AEEC Developed ARINC Characteristic 741P2-6: Aviation Satellite Communication System – Part 2 –
System Design and Equipment Functional Description.
RTCA DO-215A, Guidance on Aeronautical Mobile Satellite Service (AMSS) End-to-End System
Performance.
4.2 FANS-1/A References
FANS-1/A Operations Manual, Version 5.0, August 30, 2007.
Guidance Material for ATS Data Link Services in North Atlantic Airspace. (Updated version of the NAT
Guidance Material is available on the NAT PCO website www.nat-pco.org.
RTCA DO-258A/EUROCAE ED-100A, Interoperability Requirements for ATS Applications Using ARINC 622
Data Communications (FANS-1/A Interop Standard), April 7, 2005 (RTCA), April 2005 (Eurocae).
RTCA DO-306/EUROCAE ED-122, Safety and Performance Standard for Air Traffic Datalink Services in
Oceanic and Remote Airspace (Oceanic SPR Standard), October 11, 2007 (RTCA), October 2007 (Eurocae)
RTCA/DO-212, Minimum Operational Performance Standards for Airborne Automatic Dependent
Surveillance (ADS) Equipment, October 26, 1992.
RTCA/DO-219, Minimum Operational Performance Standards for ATC Two-Way Data Link Communications,
August 27, 1993.
AEEC Developed ARINC Characteristic 745-2: Automatic Dependent Surveillance, June 1993.
4.3 ATN FANS References
To Be Developed
7
FANS-1/A Datalink Communications Environment
5 FANS-1/A Datalink Communications Environment
The end-to-end FANS-1/A Datalink Communications Environment includes the Air Traffic Service Provider (ATSP)
FANS-1/A ground end-system, communication service provider (CSP) ground-ground and air-ground networks,
internetworking between CSP’s, aircraft, and ACARS and FANS-1/A avionics. The FANS-1/A applications operate
over the ACARS networks. The following paragraphs provide a high level functional description of all of the end-toend
system elements, protocols, and redundancies.
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