TE - White Papers

AEROSPACE / WHITE PAPER CONNECTING THE FUTURE OF FLIGHT 9 HIGH-SPEED COPPER for Gigabit to 10 Gigabit Ethernet and beyond VALUE For data-intensive functions, the 4-Mbps speed of CAN FD can be too slow by over three orders of magnitude. Operating at far faster speeds, 10 Gigabit Ethernet using high-speed Cat 6a copper cabling can provide real-time, non-deterministic data transmission for avionics, flight-control, and cabin-management systems. However, this solution requires over-provisioning the network with a huge amount of bandwidth. Over- provisioning allows even worst-case network contention to be resolved quickly. To calculate the margin level between link performance and application limit, the designer must account for cable and connector impedance and environmental variables (temperature, humidity, aging). By providing a large margin for error, the designer can implement a 10 Gigabit Ethernet network without needing complex and expensive ARINC 664 hardware. PERFORMANCE High-speed Cat 6a copper cabling can support 10 Gigabit Ethernet at 83 m (272 ft), versus 36 m (118 ft) for a Cat 6 cable. Cat 6a cable is available in size 24 AWG or smaller 26 AWG wire sizes to minimize size and weight. To mitigate insertion loss, crosstalk, and other signal-degrading due to faster I/O, the designer must use high-speed ARINC 600-compliant connectors. Proprietary, circular connectors are also available to handle extreme environments, offer flexible speed and size range, and provide metallic or composite-shell options for weight reduction. TE can provide a full physical-layer solution for high-speed copper applications based on extensive, high-performance-connectivity experience with 100- and 200-Gbps speeds for next-generation applications. Standards-based link components include: • Fully shielded Raychem Cat 6a four-pair cables with AS6070 qualification. Fluoropolymer cable construction supports ANSI/TIA-568-C specifications for stability in extreme conditions. • Compact CeeLok FAS-T connectors are 10G Ethernet, field-terminable I/O connectors widely used in aerospace and defense applications. Substantial size and weight savings are obtainable due to a small shell size 8 form factor. Electrical resistance meets ≤1.0 mΩ requirement of AS85049/128. • CeeLok FAS-T Nano circular connectors combine 10 Gigabit rates with factory terminated, environmentally sealed assemblies 30 AWG Turbo Twin cable saves space and weight. Close impedance matching provides high-frequency headroom to tolerate noisy environments. • CeeLok FAS-X connectors employ AS39029 crimp contacts designed for rugged environments. These connectors are significantly smaller than RJ45 in M38999 connectors (shell size 11 versus shell size 19). CHALLENGES ARCHITECTURE SENSORS IMPLEMENTATION OPPORTUNITIES NETWORK TE TECHNOLOGIES FOR HIGH-SPEED COPPER EXPLORE THE PAPER:

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