trig TT21 - Key Push Buttons; Code Selector Knob Settings; Altitude Encoder Warm-up

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TT21/TT22 Transponder Installation Manual 22 August 2017

00560-00 AP

______________________

ii Trig Avionics Limited

5.1 UNPACKING AND INSPECTING EQUIPMENT ......................................12

5.2 CONTROLLER MOUNTING................................................................12

5.3 TRANSPONDER MAIN UNIT MOUNTING ...........................................13

5.4 COOLING REQUIREMENTS ...............................................................13

5.5 TT21/TT22 TRANSPONDER ELECTRICAL CONNECTIONS ................14

5.5.1 TT21/TT22 Interface – Pinout ................................................14

5.6 TT21/TT22 TRANSPONDER INTERFACE DETAILS ...........................15

5.6.1 Power Input ............................................................................15

5.6.2 TMAP Bus ..............................................................................16

5.6.3 Power On ...............................................................................16

5.6.4 Controller Power ...................................................................16

5.6.5 Mutual Suppression ................................................................16

5.6.6 Ident Switch Input ..................................................................17

5.6.7 Squat Switch Input .................................................................17

5.6.8 External Standby Input...........................................................17

5.6.9 GPS Position Input.................................................................17

5.6.10 TIS Traffic Output ..................................................................18

5.7 TC20 CONTROLLER ELECTRICAL CONNECTIONS ............................18

5.7.1 TC20 Interface - Pinout .........................................................19

5.8 TC20 CONTROLLER INTERFACE DETAILS .......................................19

5.8.1 TMAP Bus ..............................................................................19

5.8.2 Altitude Out ............................................................................20

5.8.3 Remote ON .............................................................................20

5.8.4 Power .....................................................................................20

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