In the Futurebus+® series of standards, tools with which high-performance bus-based systems may be developed are provided. This architecture provides a wide range of performance scalability over both cost and time for multiple generations of single- and multiple-bus multiprocessor systems. This document, a companion standard to the ISO/IEC 10857: 1994 (ANSI/IEEE Std 896.1, 1994 Edition) Futurebus+(R) Logical Layer Specification, builds on the logical layer by adding requirements for a spaceborne profile. It is to this profile that products will claim conformance. Other specifications may be required in conjunction with this standard.

Profile S of the IEEE 896.X series will address the subset of 896.1 to be adopted as well as electrical, mechanical packaging, environmental, and other considerations Current backplane protocol standards do not address the unique requirements associated with spaceborne processing systems. This standard will establish and specify the requirements (bus, mechanical and electrical) to support implementation of spaceborne Futurebus+ based processing systems.required for spaceflight. This profile will leverage heavily the work ongoing in the 896.5 Military Profile, the 896.9 Fault Tolerance Working Group, and the 896.8 Desktop Profile.

Current backplane protocol standards do not address the unique requirements associated with spaceborne processing systems. This standard will establish and specify the requirements (bus, mechanical and electrical) to support implementation of spaceborne Futurebus+ based processing systems.