Session
Session VIII: Advanced Technologies—Section 2
Abstract
SIF is a Standard InterFace for spacecraft electronics. It combines a number of existing standards+28 V avionics power, ISO 11898-3 fault-tolerant Control Area Network (CAN), and the CANopen software protocol. Terminals are connected into a closed loop by identical cables. The resulting network is fail-operational and is easy to modify even late in satellite integration. SpaceQuest experience building a large spacecraft with SIF avionics has demonstrated the cost and schedule savings inherent in standardized interfaces. This paper contains all of the information required for the reader to build and use SIF devices. The small satellite community is invited to make use of SIF, in the belief that widespread utilization of standards benefits all of the players.
Presentation Slides
SIF – Yet Another Spacecraft Interconnection Standard
SIF is a Standard InterFace for spacecraft electronics. It combines a number of existing standards+28 V avionics power, ISO 11898-3 fault-tolerant Control Area Network (CAN), and the CANopen software protocol. Terminals are connected into a closed loop by identical cables. The resulting network is fail-operational and is easy to modify even late in satellite integration. SpaceQuest experience building a large spacecraft with SIF avionics has demonstrated the cost and schedule savings inherent in standardized interfaces. This paper contains all of the information required for the reader to build and use SIF devices. The small satellite community is invited to make use of SIF, in the belief that widespread utilization of standards benefits all of the players.
