TTEthernet has been designed for hard real-time applications based on Ethernet and supports design of mixed criticality functions and systems with high reliability, safety, and integrity requirements. TTEthernet is 100% compatible with Ethernet standard IEEE 802.3. Off-the-shelf components are available. This technology consolidates experiences and proven mechanisms from aerospace system design, automotive electronics and industrial automation.

Synchronous services of TTEthernet offer all benefits characteristic for time-triggered networking with global synchronization better than 1µs, but also enable seamless integration of critical systems and system-of-systems consisting of both synchronous and asynchronous Ethernet services.

Critical System Scalability with TTEthernet

TTEthernet enables design of mixed synchronous/asynchronous systems with different Quality-of-Service requirements in one network. TTEthernet simplifies the design of fault-tolerant and high availability solutions with synchrounous audio/video or control system data, and asynchronous LAN or Service-Oriented-Architecture applications over Ethernet. The level of partitioning or integration of different subsystems in a TTEthernet network can be adjusted to fit particular application requirements.

The TTEthernet product family supports bandwidths of 100 Mbit/s, 1 Gbit/s, and higher. The scalable network topology offers the opportunity to select star, line or tree for the topology that best fits user requirements. Besides, TTEthernet delivers scalable fault tolerance by allowing single-, dual-, and triple-redundancy for different levels of system integrity and criticality.

Scalable synchronization and implementation helps to decide on the most cost-effective solution:

• Software-based end systems for low-cost TTEthernet switch
• Dedicated TTEthernet controller and switch for highest performance (ASIC or FPGA-based)