This document describes the desired operational capability of the equipment as configured with the first generation Satellite Data Unit (SDU) to provide data and voice communications, as well as additional standards necessary to ensure interchangeability. Supplement 11 adds commentary on the commonality of physical interfaces between ARINC 741 systems defined for SwiftBroadband safety services and ARINC 741 systems defined only for the Inmarsat Classic Aero safety services. It adds the SwiftBroadband safety services to the SDU functional definition.
SAE ARINC741P2-11-2012 history
2012SAE ARINC741P2-11-2012 AVIATION SATELLITE COMMUNICATION SYSTEM PART 2 SYSTEM DESIGN AND EQUIPMENT FUNCTIONAL DESCRIPTION