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ATN-2000

ATN-2000. AOC Migration Strategy. Presented by Frank O’Connor. AOC Data Link Needs. Data Link is Essential to today’s Aviation ACARS in use for AOC for over 20 years Rapid Growth in Data Link Usage Demand will soon Exceed Capacity of Current ACARS System

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ATN-2000

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  1. ATN-2000 AOC Migration Strategy Presented by Frank O’Connor

  2. AOC Data Link Needs • Data Link is Essential to today’s Aviation • ACARS in use for AOC for over 20 years • Rapid Growth in Data Link Usage • Demand will soon Exceed Capacity of Current ACARS System • New Application need More Efficient and Reliable communications • ATN Provides a Network which can satisfy AOC Demands

  3. ATN Benefits to AOC • Digital Networks make more Effective Use of Available VHF Bandwidth • Communications Protocols provide a far more Reliable Data Transfer Mechanism • More Efficient Bit-Oriented Applications are supported • Supports Legacy Applications • Shared ATS and AOC Network

  4. AOC/ATN Benefits to ATSOs • Shared ATC/ATC Network is cost effective • FANS-1 built over Existing ACARS Network • Over 90% of ACARS Traffic is AOC • Airlines Equipage with ATN for AOC • Offsets Cost of ATC Equipage • Fleet replacement and data link upgrades aids in ATC deployment • AOC use of ATN Accelerates ATSOs’ use of Data Link

  5. Standards • ICAO SARPs defines Generic ATN Communication Service (GACS) • ARINC-637 specifies the use of ACARS over ATN including FANS-1 Applications

  6. Standards Validation • Eurocontrol have Validated the GACS Protocol • Eurocontrol Conducting further Tests to Validate ARINC-637

  7. Migration Steps • Migrate Directly to ATN OR • Use AOA (ACARS over AVLC) as an intermediate step

  8. ACARS over AVLC (AOA) • Enables ACARS Traffic over the VDL Mode-2 Infrastructure • No Modification Required to: • Existing Legacy Airline Host Systems • Existing Airborne Applications • Modifications Required to: • Interface Airborne ACARS Router Modified with VDL Mode-2 Avionics • Provide Gateway function between ACARS and VDL

  9. ACARS over AVLC cont. • Benefits • Meets Immediate Need for Additional ACARS Bandwidth • Justifies Deployment of VDL Mode-2 Network prior to ATN Availability • Weaknesses • Supports VDL Mode-2 but no additional ATN advantages • Additional Equipage Cost to transition to ATN • May Delay ATN Deployment • Delays New Application Development

  10. ACARS over ATN • ATN and ARINC-637 Standard to support ACARS over ATN • No Modification Required to: • Existing Legacy Airline Host Systems • Existing Airborne Applications • Modifications Required: • Airborne Interface between ACARS and ATN Router • Gateway function between ATN Router and Hosts System

  11. ACARS over ATN (cont.) • Benefits • More Efficient and Reliable than AOA • Fully ATN Compliant provides for earlier deployment of new efficient bit-oriented applications • Single step, no AOA Equipage Cost • Weaknesses • Product Availability

  12. Industry Status • AOA • Comms. Service 2000/2001 • Avionics Announced • ACARS over ATN • ATN Comms. Service 2001/2002 • AOC Gateway Server Q2/2001 • AOC Airborne Software Q2/2001 • Avionics Availabilty Not Announced

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