1.0 INTRODUCTION AND DESCRIPTION
1.1 Purpose of this Characteristic
1.2 Relationship of this Document to Other ARINC
     Characteristics and Industry Documents
1.3 Inmarsat System Description
1.4 Function of Equipment
1.5 Airborne Avionics Configurations
1.6 Unit Description
1.7 System Performance
1.8 Interchangeability
1.9 Regulatory Approval
2.0 INTERCHANGEABILITY STANDARDS
2.1 Introduction
2.2 Form Factors, Connectors, and Index Pin Coding
2.3 Antenna Specification
2.4 Standard Interwiring
2.5 Power Circuitry
2.6 System Functions and Signal Characteristics
2.7 Environmental Conditions
2.8 Cooling
2.9 Grounding and Bonding
2.10 System ATE and BITE Design
3.0 SATCOM FUNCTIONS
3.1 Inmarsat Radio
3.2 User Interfaces
3.3 Software Data Loader Interfaces
3.4 Miscellaneous
3.5 Priority, Precedence, Preemption, and Preference
3.6 Future Growth
3.7 Passive Intermodulation Built-In Test (PIMBIT)
ATTACHMENTS
ATTACHMENT 1 - STANDARD INTERFACES
ATTACHMENT 2 - ARINC 429 LABELS AND WORD
               FORMATS USED IN THE AVIATION SATELLITE
               COMMUNICATIONS SYSTEM
ATTACHMENT 2A - ANTENNA CONFIGURATION DATA REPORTING
ATTACHMENT 2B - BIT-ORIENTED FAULT REPORTING PROTOCOL
ATTACHMENT 3 - COCKPIT VOICE - SAT PHONE
               STATE MACHINE FOR NORMAL OPERATION
ATTACHMENT 4A - ARINC 781 SDU FUNCTIONS MATRIX
ATTACHMENT 4B - ARINC 781 SDU INTERFACES MATRIX
ATTACHMENT 5 - ETHERNET INTERFACE
ATTACHMENT 6 - ARINC 781 OUTPUT POWER USE CASES
ATTACHMENT 7 - COMPACT SATCOM SYSTEMS
ATTACHMENT 8 - NETWORK SECURITY FOR
               SWIFTBROADBAND SAFETY SERVICES
ATTACHMENT 9 - ATTACHMENT REFERENCE GUIDE
APPENDIX A - ACRONYMS
APPENDIX B - SECURITY ANALYSIS OF
             THE SATCOM ETHERNET INTERFACE