Issue link: https://te.mouser.com/i/1472768
17 AEROSPACE / WHITE PAPER CONNECTING THE FUTURE OF FLIGHT VPX and Open VPX standards for ultimate bandwidth VALUE While commercial aviation looks to IMA packaging and ARINC standards, the defense- aviation industry utilizes VPX form factors and interconnect standards developed by the VME International Trade Association (VITA) Working Group and the Sensor Open Systems Architecture (SOSA™) Consortium. Incorporating high-speed-switch-fabric technology, VPX and OpenVPX backplanes enable immense bandwidth—for example, up to 900 Gbs duplex data throughput for optical interconnects that conform to the forthcoming VITA 66.5 standard. This level of bandwidth exceeds the needs of commercial avionics applications. Nevertheless, given the ever-expanding appetite of bandwidth-hungry autonomous-control applications, it's valuable for UAM avionics designers to be familiar with interconnects defined by VPX and OpenVPX standards. Board-to-board connectors The VITA 46 standard defines the primary digital connector for VPX backplanes and is based on the MULTIGIG RT platform developed by TE. • MULTIGIG RT 2 interconnect family is comprised of stackable modular components and guide-pin assemblies enabling pinless, board-to-board interconnection supporting Ethernet, Fibre Channel, InfiniBand applications, PCIe and Serial RapidIO high-speed protocols. MULTIGIG RT 2-R is a ruggedized version suited to high-vibration environments. • MULTIGIG RT 3 family supports 25-32 Gbps baud rates that meet OpenVPX and SpaceVPX standards, while maintaining mating compatibility with MULTIGIG RT 2 and 2-R systems (Figure 10). Four points of contact (compared to two for MULTIGIG RT 2) provide redundancy for contacts between the receptacle and the wafers, which is suited for extreme environments. Ruggedized backplane connectors These connectors are available for next-gener- ation packaging in VPX avionics boxes needing FIG 10: MULTIGIG RT 3 high-speed backplane connectors meet the interface dimensions for VITA 46 VPX connectors and support up to 32 Gbps baud rates. (Courtesy TE Connectivity) TE TECHNOLOGIES FOR VPX AND OPENVPX STANDARDS EXPLORE THE PAPER: CHALLENGES ARCHITECTURE SENSORS IMPLEMENTATION OPPORTUNITIES NETWORK