The SpaceWire site is now online
SpaceWire is a Network for space applications composed of nodes and routers interconnected through bi-directional high-speed digital serial links.
Space Wire is based on two existing commercial standards, which have been combined and adapted for use on-board spacecraft: IEEE 1355-1995 Standard and LVDS(Low Voltage Differential Signaling).
SpaceWire can be used for the high-speed (a few to hundreds of Mbit/s) serial communications through cable or through the backplane between the following modules:
The real benefit of having the SpaceWire Standard is COMPATIBILITY between different equipment developed by different manufacturers through the use of a common high-speed interface.