NASA Orion - System Integration with Deterministic Ethernet (TTEthernet)

NASA's Orion MPCV provides the US an entirely new human space exploration capability. TTTech's Deterministic Ethernet (TTEthernet) is one of the advanced technologies to be deployed in Orion

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Orion's First Step to Deep Space: Exploration Flight Test-1 in 2014

TTEEnd System Chip IP Core for Space Applications

This highly optimized end system IP enables the design-in of real-time Ethernet communication capabilities between an embedded computer and TTEthernet switches in space applications

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TTE-End System Chip IP Core for Space Applications

Exploring New Ways to Simplify Spacecraft Software and System Architectures

A Market Which Requires Ultimate Reliability

Main characteristics of this market - at least for the segment which flies (launchers, satellites and other space vehicles) - are extremely harsh environmental conditions, low production volumes and for now no options for maintenance or repair during operation in space. Therefore space equipment has to be ultra-dependable and all systems have to be meticulously tested before deployment. To facilitate re-use, standardized elements and composability are vital.

TTTech has been engaged in this market since 2000 as provider of chip IP, development equipment and PC based tooling (network configuration) with an initial focus on North America (NASA). Please browse the projects and references section for an overview on some key programs in which TTTech was and still is involved.

Since there is a great match between the key market requirements of dependability (reliability) and composability and TTTech’s core technologies, it is our focus to play an important role in networked embedded computing in different segments of the space market. The initial focus is on human spaceflight and launcher applications in Europe and North America. With TTEthernet we offer a standardized (SAE AS6802) networking technology with outstanding characteristics for these and other applications. The platform solution’s values have been acknowledged by several space agencies and leading industrial partners.

  • SAE Aerospace Systems and Technology Conference

    November 06, 2018 - November 6-8, 2018: Join our aerospace experts at booth # 3 during the SAE Aerospace Systems and Technology Conference in London, UK. We will be presenting our portfolio of certifiable aerospace solutions with product highlights such as the TTESwitch Controller Space and TTEEnd System Controller Space.



  • Scalable and modular architectures
  • Determinism
    • Fixed latencies
    • Message sending order known
    • Reduced complexity for integration/testing or reconfiguration
    • Incremental qualification
  • Secure partitioning (running data of mixed criticality on a single network)
  • Built-in scalable fault-tolerance
  • Increased bandwidth (scalable from 10 Mbit/s – 1 Gbit/s)
  • Single network fully compatible with standard Ethernet (IEEE 802.3)
  • Fault-tolerant distributed clock synchronization which can be tied to an external clock (e.g. GPS)
  • Cost-competitive cross-industry technology (spin in)