While MIL-STD-1553 has long served as the backbone bus in avionics systems, more demanding data-intensive mission requirements including video, audio and data distribution, are pushing 1553 well beyond the limits of its bandwidth. Several high speed interconnect technologies, among them Fiber Distributed Data Interface (FDDI), Fibre Channel, ATM, IEEE 1394 (Firewire) and Fast Ethernet are competing to replace 1553. We will evaluate these technologies and discuss their suitability to the rigorous demands of future military platforms, concluding that Fiber Channel will be the eventual technology of choice for Vetronics and Avionics applications when deployed in the harshest of environments.
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