ARINC DlkRptJulSepOct20

Data Link (DLK) Systems Subcommittee Meeting Report, July, September, and October 2020

Last Published: 
Thursday, December 3, 2020

Data Link (DLK) Systems Subcommittee Meeting Report. Meetings held July 7-10, September 8-11, and October 8, 2020.

The DLK Systems Subcommittee held numerous joint conferences with RTCA SC-214 and EUROCAE
WG-92. The meetings were conducted online.

The meeting goals were to advance the development of data link standards and maintain harmony amongst industry VHF Digital Link (VDL) standards. The VDL Standards Group monitors FAA Data Comm and Single European Sky Data Link Services (DLS) operation and considers standardizing issues to improve CPDLC performance.

The DLK Systems Subcommittee reviewed the status and schedule of the following ARINC Data Link Standards:

  • Supplement 9 to ARINC Specification 618: Air-Ground Character-Oriented Protocol, as authorized by APIM 17-003
  • Supplement 9 to ARINC Specification 631: VHF Digital Link (VDL) Mode 2 Implementation Provision, as authorized by APIM
    17-003B

The DLK Systems Subcommittee concurred that a mature draft of Supplement 9 to ARINC Specification 619 will be available by May 2021.

The DLK Systems Subcommittee concurred that a mature draft of Supplement 9 to ARINC Specification 631 will be available by October 2022.

The status and schedule of the following VDL Mode 2 Industry Documents were also reviewed:

  • EUROCAE ED-92D: Minimum Operational Performance Standards (MOPS) for Aircraft VDL Mode 2 Physical Link and Network Layer
  • RTCA DO-224E: Minimum Operational Performance Standards (MOPS) for Aircraft VDL Mode 2 Physical Link and Network Layer
  • RTCA DO-281D: Signal-in-Space Minimum Aviation System Performance Standards (MASPS) for Advanced VHF Digital Data Communications Including Compatibility with Digital Voice Techniques
  • EUROCAE ED-276/RTCA-383: Guidance on Air to Ground VDL Mode 2 Interoperability

The group reviewed comments received for RTCA DO-383/EUROCAE WG-276 – Guidance on VDL Mode 2 Air/Ground Interoperability. These interoperability recommendations are also added in Appendix L to ARINC Specification 631-8 (Published July 15, 2020).

Please consult with RTCA and EUROCAE for information on RTCA SC-214/EUROCAE WG-92 activities during these meetings (e.g., Plenary 34, Review of EUROCAE ED-276/RTCA-383 comments, etc.).

The group was briefed on LED lighting emissions interfering with VDL Mode 2 operation in certain Airport Terminal/Gate area.

The next DLK Systems Subcommittee meetings are tentatively scheduled for November 16-20, 2020 and January 26-29, 2021. The meeting will be held online.

The handout materials from this meeting are reproduced as attachments to this report.

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