ARINC 750-4 : 2004

1.0 INTRODUCTION
1.1 Purpose of This Document
1.2 Airborne Subsystem Configuration
1.3 Interchangeability
1.4 Regulatory Approval
1.5 Relationship to ICAO Documents
1.6 Relationship to Other Documents
2.0 INTERCHANGEABILITY STANDARDS
2.1 Introduction
2.2 Form Factors, Antenna Considerations,
    Connectors & Index Pin Coding
2.3 Standard Interwiring
2.4 Power Circuitry
2.5 System Functions and Signal Characteristics
2.6 Environmental Conditions
2.7 Cooling
2.8 Grounding and Bonding
2.9 Standardized Signaling
3.0 MODES OF OPERATION
3.1 Introduction
3.2 Description of the Modes
3.3 Mode Determination
3.4 CMU 750 Data Mode Support Determination
3.5 750 Data Mode Protocol Management
3.6 CMU ARINC 429 Broadcast
4.0 INTERFACES AND PROTOCOLS TO THE GROUND SYSTEM
4.1 Introduction
4.2 Transmitter and Modulator Control
4.3 Receiver and Demodulator Control
4.4 Transmitter-Receiver Interaction
5.0 INTERFACE AND PROTOCOLS TO THE CMU
5.1 ARINC Specification 429 Interface Definition
5.2 ARINC 750 Data Mode Initialization and Protocol States
5.3 VDR Control
5.4 Reserved
5.5 Periodic Data
6.0 PROVISIONS FOR AUTOMATIC TEST EQUIPMENT (ATE)
6.1 General
7.0 PROVISIONS FOR BUILT-IN TEST EQUIPMENT (BITE)
7.1 Introduction
7.2 BITE Interfaces
7.3 BITE Presentation
7.4 Fault Monitor
7.5 Self-Test Initiation
7.6 Monitor Memory Output
ATTACHMENTS
1 Airborne Subsystem Block Diagram
2 VDR Connector Positioning
3 Standard Interwiring
4 Notes Applicable to Standard Interwiring
5 Environmental Conditions for Airborne
   Equipment RTCA/DO-160C
6 Signal in Space Masks
7 Example Symbol Encoding (Deleted by Supplement 3)
8 VDR Tables and Figures
9 Scrambler Functional Block
10 AVLC Simple Interface Protocol (ASIP)
11 ACARS Interface Protocol (ACARSIP)
APPENDICES
A Terms
B Acronyms
C Bibliography
ARINC Standard - Errata Report
ARINC IA Project Initiation/Modification (APIM)

Specifies one of the airborne components defined in ARINC Specification 631, 'VHF Digital Link Implementation Provisions'.