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The TTESwitch Module A664 Pro brings the full power of Deterministic Ethernet communication technology to aerospace certifiable hardware. The switch module enables a wide range of certifiable networks: from standard Ethernet networks, ARINC A664 part 7/AFDX® networks to fully-configurable TTEthernet networks - with speeds up to 1 Gbit/s. The switch module uniquely supports three standard traffic classes in parallel on one physical media enhanced by additional features for seamless integration of Ethernet network interface cards. Its very small form factor makes it fit at the core of all avionics switches.

Key benefits

  • Ethernet traffic (IEEE 802.3)
  • Rate-constrained traffic (ARINC 664 part 7)
  • Time-triggered traffic (SAE AS6802)

  • Operating temperatures from -40°C to +85°C (ambient temperature on switch box)
  • Altitudes up to 15,200 m (50,000 ft) MSL
  • Relative humidity 95% +/- 4%
  • Environmental tests: DO-160G compliant

  • Switch module core hardware: RTCA DO-254 DAL A
  • Embedded software: RTCA DO-178C DAL A
  • Environmental ratings: RTCA DO-160G
  • Safety assessment: according to SAE ARP 4754/4761

Key features

The TTESwitch Module A664 Pro enables the implementation of critical network-centric applications. The high-performance switch enables packet processing on all 24 ports with full line speeds:

  • 6 x 10/100/1,000 Mbit/s ports
  • 18 x 10/100 Mbit/s ports
  • 1 additional mirroring port: 10/100/1,000 Mbit/s

The TTESwitch Module A664 Pro allows the configuration of up to 4,096 virtual links (VLs). VLs can be configured with 8 priorities and a bandwidth allocation gap (BAG) of 0.5 to 1,600 ms.

The configuration of the network is stored in the switch’s non-volatile memory (256 Mbit). As an option, IEEE 802.1Q VLANs can be configured. Profiled IP/UDP, redundancy management and traffic shaping are implemented in the hardware. A built-in TMS 570 CPU is used for management and higher-layer protocol functions.

The built-in management module runs on a separate CPU. It allows for data loading as well as for querying the network status via SNMP. Data loading is done according to ARINC 615A-3.

  • 6 x 10/100/1,000 Mbit/s full-duplex Ethernet (via QSGMII)
  • 18 x 10/100 Mbit/s full-duplex Ethernet (via QSGMII)
  • 1x 10/100/1,000 Mbit/s Ethernet Mirroring (via QSGMII)

If you require more detailed information you can download the data sheet or contact us directly at


AFDX® is a registered trademark of Airbus

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