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FANS Media Management

FANS Media Management. Mike Matyas May 2013. Boeing Commercial Airplanes. Boeing commercial airplanes provide varying levels of media management for FANS Newer avionics generally offer more capability All airplanes may be configured to satisfy requirements for FANS operational authorization

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FANS Media Management

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  1. FANS Media Management Mike Matyas May 2013

  2. Boeing Commercial Airplanes • Boeing commercial airplanes provide varying levels of media management for FANS • Newer avionics generally offer more capability • All airplanes may be configured to satisfy requirements for FANS operational authorization • Boeing commercial airplanes have a demonstrated certification basis to use all media available for FANS • Relevant information is included in model-specific ATSSR&O or ATS Capabilities documents

  3. FANS Media • VHF • VDLM0/A subnetwork (using POA protocol) • VDLM2 subnetwork (using AOA protocol) • SATCOM • Inmarsat Classic Aero subnetwork • Iridium subnetwork • HF • HFDL subnetwork (ARINC only)

  4. FANS Media Management • FANS applications are independent from the router function • FMC (or equivalent) hosts FANS applications • CMU (or equivalent) hosts router function • FANS applications cannot determine which subnetwork is in use or select which subnetwork to use • Router function switches between subnetworks to maximize communications availability according to operator preferences

  5. Typical Operator Preferences • VHF • VDLM2 (AOA) • VDLM0/A (POA) • SATCOM • Inmarsat Classic Aero or Iridium • HF • HFDL

  6. Links and Routing • VHF, SATCOM, and HF links can be established simultaneously • Each medium has an independent transceiver • Within the VHF medium, VDLM2 and VDLM0/A links cannot be established simultaneously • Both subnetworks share a transceiver • If SATCOM is available and a downlink routed via VDLM2 is not acked, then it is routed via SATCOM (not VDLM0/A) because VHF NO COMM is declared

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