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Data Link Systems Subcommittee

Last Update: March 28, 2017

Chairman: Bob Slaughter - American Airlines

APIM 10-013B: Supplement 7 to ARINC 631 VDL-2 Implementation Provisions (pdf, 51K)
APIM 16-007A: Supplement 5 to ARINC Specification 622: ATS Data Link Applications over ACARS Air-Ground Network (pdf, 54K)
APIM 16-010: Supplement 9 to ARINC Specification 620: Datalink Ground System Standard and Interface Specification (DGSS/IS) (pdf, 54K)

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:

Circulation Prior to Adoption Action
Draft 1 of Supplement 5 to ARINC Specification 619: ACARS Protocols for Avionic End Systems

Circulation Prior to Adoption Action
Draft 4 of Supplement 5 to ARINC Specification 622: ATS Data Link Applications Over ACARS Air-Ground Network

Circulation Prior to Adoption Action
Draft 7 of Supplement 7 to ARINC Specification 631: VHF Digital Link (VDL) Mode 2 Implementation Provisions

Meeting Announcement:

Data Link (DLK) Systems Subcommittee (pdf, 461K)
June 20-22, 2017, in Brussels, Belgium
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Working Papers:

Data Link (DLK) Systems Subcommittee Meeting Agenda (pdf, 112K)

Last Meeting Report:

Data Link (DLK) Systems Subcommittee
October 31-November 2, 2016, in Annapolis, Maryland

Staff Contact

Jose Godoy