Issue link: https://te.mouser.com/i/1472768
16 AEROSPACE / WHITE PAPER CONNECTING THE FUTURE OF FLIGHT Cabling for MiniMRP In distributed avionics, a large number of links are shorter than 83 m (272 ft). Consequently, high-speed 10G Ethernet copper cable or fiber optics can be employed as discussed above. For high-speed Cat 6a links less than 60 m (197 ft), 26 AWG cables may be used for smaller and lighter harnesses. Cat 6a cable can be termi- nated with small, high-speed ARINC-compliant circular connectors. Transceivers for MiniMRP In MiniMRP applications, copper and fiber can easily coexist. Each medium brings specific advantages, from the comfortable familiari- ty of copper to the high-bandwidth and EMI immunity of fiber. Avionics designers who are challenged by bandwidth-hungry processes can employ transceivers accommodating both opti- cal fiber and copper to meet an array of high- speed connectivity needs, from box to box, box to backbone, and box to server. • ParaByte transceivers employ a robust parallel optical design capable of achieving 10+ Gbps while also meeting MIL-SPEC standards for robustness. The small and dense ParaByte Transceiver design allows multiple transceivers to fit easily inside a single MiniMRP module. Connectors for MiniMRP • DEUTSCH DMC-M connectors are commonly used for MiniMRP modules. DMC-M connectors offer both multi-cavity and single-module configurations and composite housings, as well as aluminum wire capability, fiber optics, higher densities, and shunting configurations. • CeeLok FAS-T circular connectors offer a true 100-ohm impedance design compatible with Cat 6a cable. A compact size 8 shell reduces SWaP (size, weight, and power) requirements. Crimp-snap contacts allow easy termination and field repairability. An integral backshell enables 360-degree shield termination. Minimal crosstalk and high signal integrity are achieved with a T-shaped contact pattern that provides noise cancellation and decoupling. • CeeLok FAS-X circular connectors (Figure 9) are available in a small size 11 shell in a M38999 profile for one 10 Gbps Ethernet channel (size 25 shell for four channels). Contacts employ a proven AS39029 design for rugged environments. An innovative shielding arrangement shields each contact pair through the connector for improved impedance matching and crosstalk elimination. CeeLok FAS-X connectors are also qualified to MIL-DTL-32546. FIG 9: CeeLok FAS-X connectors employing rugged, MIL-SPEC components for robust 10G Ethernet connectivity. (Courtesy TE Connectivity) TE TECHNOLOGIES FOR IMA (CONT.)