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25-Apr-2014
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Introduction

SpaceWire is a standard for high-speed links and networks for use onboard spacecraft, easing the interconnection of:

  • sensors
  • mass-memories
  • processing units, and
  • downlink telemetry sub-systems.

SpaceWire is being widely used on many space missions by:

SpaceWire equipment is connected together using SpaceWire links which are:

  • serial,
  • high-speed (2 Mbits/sec to 200 Mbits/sec),
  • bi-directional,
  • full-duplex.

Application information is sent along a SpaceWire link in discrete packets. Control and time information can also be sent along SpaceWire links.

SpaceWire is defined in the European Cooperation for Space Standardization ECSS-E50-12A standard.

For further information on the purpose and key features of SpaceWire and for a brief technical introduction please click on the following links:

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