EUROCAE ED-92C PDF

INTRODUCTION

This document contains the Minimum Operational Performance Specifications (MOPS) and test procedures for aircraft Very High Frequency (VHF) Digital Link (VDL) Mode 2 physical, link and network layer protocol components which comprise an avionics transmitter/receiver (transceiver) function intended to be used for air-ground (A/G) data communications. This document is designed so that equipment certified to it will be compliant with the RTCA DO-224D VDL Mode 2 MASPS document and with International Civil Aviation Organization (ICAO) Doc 9776, Manual on VHF Digital Link (VDL) Mode 2, which is also known as the VDL Mode 2 Technical Manual. Additional information on VDL Mode 2 is contained in ARINC Specification 631 and ARINC Characteristics 750 and 758.

Compliance with this MOPS is one means of assuring that the VDL Mode 2 equipment will function satisfactorily under all conditions normally encountered in air traffic services communications and that data formats will be compliant with the Aeronautical Telecommunication Network (ATN). These standards specify characteristics useful to designers, manufacturers, installers, and users of the VDL Mode 2 A/G communications system equipment. This document is organized with the following order and format:

▪ Chapter 1 describes the purpose and scope.

▪ Chapter 2 describes the minimum operational performance standards for:

- general design requirements

- standard conditions

- environmental conditions

- equipment test procedures

▪ Chapter 3 describes the installed equipment tests.

Appendix A contains a list of acronyms used in this document.

Appendix B contains a traceability matrix for the standard base.

Appendix C provides the Frame Error Rate method

Appendix D defines the minimum functionality of the Data/Management Interface for Class Y and Class Z architectures. This functionality is described at a high level. No protocol details (i.e., bit definition, data rate, physical layer details, etc) for the Data/Management Interface are given in this document. A standardized interface that satisfies the functionality described in Appendix D is the AVLC Simple Interface Protocol (ASIP) described in Attachment 10 of ARINC Characteristic 750.

Appendix E is reserved.

Appendix F describes the differences between RTCA DO-281C and ED-92C.