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TTEthernet for next generation Honeywell avionics

TTEthernet for next generation Honeywell avionics

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By Nick Flaherty



Honeywell is using the certifiable TTEthernet network technology from TTTech Aerospace for its next generation modular avionics flight deck, Anthem.

Aviation applications today are more connected and more data-driven than ever before. Modern flight decks need to accommodate these needs and provide pilots with real-time information in an easily accessible and actionable format.

Honeywell Anthem is a next-generation, modular, and highly intuitive integrated flight deck that can be customized for virtually every type of aircraft, from passenger planes and business aircraft to defense, general aviation, and advanced air-mobility (AAM) vehicles. The modular/scalable system architecture is enabled by TTTech Aerospace’s open standards-based high-performance TTEthernet network technology for deterministic Ethernet technology that guarantees safe, secure, and reliable data transfers in the avionics network.

 “TTTech Aerospace’s open standards-based TTEthernet solution is a great fit for the data backbone network in Honeywell Anthem, as it enables faster integration, system and application software upgrades, and technology insertions for a future-proof platform thanks to its high performance, determinism, and modularity. TTTech Aerospace contributes not only certifiable switches and end systems but also development tools and test equipment enabling a shorter time-to-market for building a DAL A-level avionics network,” says Andrew Barker, Vice President/General Manager – Avionics Business Enterprise at Honeywell Aerospace USA.

TTEthernet is a commercial implementation of Deterministic Ethernet that uniquely allows three traffic classes based on open international standards to use one physical medium without interference (Standard Ethernet according to IEEE 802.3, rate-constrained traffic according to ARINC 664 part 7, and Time-Triggered Ethernet according to SAE AS6802).

This ensures optimal use of bandwidth and guarantees that safety-critical messages (e.g., weather conditions, airport traffic news, system alerts) are transmitted at the pre-scheduled time while opening the rest of the available bandwidth for non-critical messages (e.g., video feeds or non-flight-critical apps). In the space sector, TTEthernet has also been baselined for deep space missions in the International Avionics System Interoperability Standards (IASIS) by NASA, ESA, CSA, and JAXA and is being implemented among others on NASA’s Gateway.

 TTTech Aerospace’s TTEthernet offering for the aviation market is based on the main building blocks of the TTESwitch Module A664 Pro and the TTEEnd System A664 Core IP. It includes very powerful network configuration and qualifiable V&V software tools supporting the setup and integration of TTEthernet networks.

“Our TTEthernet solutions are fully DAL A certifiable, offering data transfer rates of up to 1 Gbit/s and allow scaling to larger vehicles and system extensions for future applications,” said Werner Köstler, Member of the Executive Board – Aerospace at TTTech.

“We have been working with Honeywell on system architectures based on deterministic networking solutions since 2000 and have successfully collaborated on a wide range of groundbreaking projects in the aviation and space sectors, from engine controls and civil avionics to the NASA Orion spacecraft. We have also jointly contributed to the standardization of Deterministic Networking technology (TTP in the SAE AS6003 and Time-Triggered Ethernet in the SAE AS6802 standard).  We are proud to continue our long and successful partnership with Honeywell and to be a part of their future-oriented Honeywell Anthem flight deck solution.”

www.tttech.com/aerospace

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