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Data Link Systems Subcommittee

Last Update: June 13, 2016

Chairman: Bob Slaughter - American Airlines

APIM 10-013A: Supplement 7 to ARINC 631 VDL-2 Implementation Provisions (pdf, 51K)
APIM 16-007: Supplement 5 to ARINC Specification 622: ATS Data Link Applications over ACARS Air-Ground Network (pdf, 46K)


Goal: The goal of the Data Link (DLK) Systems Subcommittee is to develop and maintain a set of ARINC Standards that promote reliable, uniform, and cost efficient transfer of data between the aircraft and various locations on the ground. These ARINC Standards cover the existing Aircraft Communications Addressing and Reporting System (ACARS®) and the emerging Aeronautical Telecommunications Network (ATN) as defined by the ICAO SARPs. Ground locations include civil aviation agencies, manufacturers of avionics and engines, data link service providers, weather providers, and departments within the airlines such as payroll, maintenance, operations, engineering, and dispatch.

Project: Develop standards to support ACARS, VDL Mode 2 and ATN.

Scope: VDL Mode 2 (VDLM2) is a bit-oriented air-ground subnetwork implemented in accordance with the ATN SARPs. ARINC Specification 631 has been developed to describe the functional implementation of VDLM2.

Benefit: The development of ARINC Standards for VDL Mode 2 and ATN-compatible data link avionics will allow the airlines to procure common avionics from multiple vendors. These standards will ensure interchangeability and interoperability of these avionics components.


Current Drafts:

Draft 3 of Supplement 8 to ARINC Specification 618: Air/Ground Character-Oriented Protocol Specification

Draft 5 of Supplement 7 to ARINC Specification 631: VHF Digital Link (VDL) Mode 2 Implementation Provisions

Circulation Prior to Adoption Action
Draft 2 of Supplement 3 to ARINC Specification 841: Media Independent Aircraft Messaging (MIAM)

Meeting Announcement:

Data Link (DLK) Systems Subcommittee (pdf, 525K)
July 26-27, 2016, in London, United Kingdom
sub bulletRegister On Line

Working Papers:

Last Meeting Report:

Data Link (DLK) Systems Subcommittee
November 10-11, 2015, in Cocoa Beach, Florida
sub bulletAssociated Handouts


Staff Contact

Jose Godoy
jose.godoy@sae-itc.org
240.334.2583