TT21/TT22 Transponder Installation Manual
22 August 2017
00560-00
AP
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Trig Avionics Limited
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TT21/TT22 Interface – Pinout ................................................14
Power Input ............................................................................15
TMAP Bus ..............................................................................16
Power On ...............................................................................16
Controller Power ...................................................................16
Mutual Suppression ................................................................16
Ident Switch Input ..................................................................17
Squat Switch Input .................................................................17
External Standby Input...........................................................17
GPS Position Input.................................................................17
TIS Traffic Output ..................................................................18
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TC20 Interface - Pinout .........................................................19
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TMAP Bus ..............................................................................19
Altitude Out ............................................................................20
Remote ON .............................................................................20
Power .....................................................................................20