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The TTESwitch MYTHOS is an integrated Deterministic Ethernet switch for spacecraft avionics networks. It forms the core of reliable Ethernet-based data networks, supporting standard Ethernet (IEEE 802.3), rate-constrained (ARINC 664 part 7), and time-triggered Ethernet traffic (SAE AS6802), and is used to connect onboard avionics subsystems in spacecrafts ranging from launchers, through space exploration vehicles, up to the satellites. The switch is a standalone device built in a compact box and is available as an off-the-shelf product. 

The switch is built using the industry proven TTESwitch Controller HiRel, implementing switching and management functions on the silicon using radiation hardening design techniques.

Key benefits

  • High-performance managed TTEthernet Switch
  • Light, compact and rugged
  • 4x 1000BASE-T and 8x/16x 100BASE-TX Ethernet ports
  • Supports standard Ethernet (IEEE 802.3), rate-constrained and time-triggered Ethernet traffic (SAE AS6802)
  • Built-in rad-hard TTESwitch Controller as a core element
  • Power input 22-38V
  • Applications: launchers and space transportation, human and robotic exploration, LEO satellites

Product availability

  • EM (Engineering Model): Q3/2025
  • FM (Flight Model for launchers): Q1/2026
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