Picture of product KDC-481T

Part #: 065-0082-12

Model: KDC-481T




Air Data Computer

Part Number :




  • Air Data Computer
  • Remote Mount
  • Digitally transmits altitude information to indicator
  • KDC-481 "T" version adds TCAS II Resolution Advisory display capability
    • KDC-481T -11 is a Tandem version - Does NOT have TCAS capability (see P/N chart below)
  • Typically displays on a KAV-485T Altitude/Vertical Speed indicator
  • A component of the KAD-480T Air Data System
  • For the KDC-481T to be operational, the appropriate Adapter Module (P/N: 065-5041-XX) must be installed
  • The Adapter Module tailors the KDC-481T for the specific aircraft
    • Parameters are determined during the installation STC
  • Plumbed into the aircraft static system
    • Note: the static air system must be leak tested according to the aircraft maintenance manual and the appropriate FARs and Advisory Circulars any time it is opened
    • Removal of the KDC-841T would require a recertification of the aircraft's static air system 
  • No self-test functionality available when operating as a stand alone system
  • Receives ARINC 429 information via 7 receive ports and transmits ARINC 429 information via four 4 transmitter ports (KDC-481 version has 6 receive ports)



Dimensions: 3.25" W x 5.43" H x 13.63" L (with mating connector) Weight: 4.8 lbs (w/rack)
Mounting: Remote with supplied rack Temperature: -55°C to 70°C
Altitude Range: -1000 to 55,000 feet Power Inputs: 28 Vdc at 500 mA
Inputs: Test, Gear up/down, Test Clock, Test TXD, TAT Probe Heat, Pitot Probe Heat, Static Source Heat, AOA Sensor, Fast/Slow Deviation, Altitude SSEC, Airpseed SSEC, 40% Flap, 100% Flap, Temp Sensor Select, Rosemount Temp Hi, Rosemount Temp Lo, AOA Signal, 429 Channel 1 thru 7, TCAS Installation, Bus Speed Select, Spare 1, Spare 2, Spare 3, Spare 4, Spare 5    
Outputs: Over and under 50 Kts, Overspeed Warning, Test RXD, Transponder, AOA Hi, +12 Vdc Reference, Discrete #1, Discrete #2, Discrete #3, Discrete #4, Discrete #5, Discrete #6, 429 Channels, Instruments 1, Instruments 2, Flight Control, General Purpose    
Environmental: RTCA/DO-160C, C2d, C8d, C10b, C43b, C46a, C88a, C95, C119a     
Part Number: Description:
065-0082-10 TCAS, Air Data Computer
065-0082-11 Tandem - NO TCAS, Both Act as Master, Air Data Computer
065-0082-12 Helicopter - TCAS, Immunity to rotor modulation, Air Data Computer
065-0082-14 TCAS - RVSM, Air Data Computer


- Air Data Computer
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