User's Manual

TT21/TT22 Transponder Installation Manual 13 July 2009

00560-00 Issue AF

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ii Trig Avionics Limited

5. INSTALLATION .................................................................................11

5.1 UNPACKING AND INSPECTING EQUIPMENT ......................................11

5.2 CONTROLLER MOUNTING................................................................11

5.3 TRANSPONDER MAIN UNIT MOUNTING ...........................................12

5.4 COOLING REQUIREMENTS ...............................................................12

5.5 TT21/TT22 TRANSPONDER ELECTRICAL CONNECTIONS ................13

5.5.1 TT21/TT22 Interface – Pinout ................................................13

5.6 TT21/TT22 TRANSPONDER INTERFACE DETAILS ...........................14

5.6.1 Power Input ............................................................................14

5.6.2 TMAP Bus ..............................................................................14

5.6.3 Power On ...............................................................................15

5.6.4 Controller Power ...................................................................15

5.6.5 Mutual Suppression ................................................................15

5.6.6 Ident Switch Input ..................................................................16

5.6.7 Squat Switch Input .................................................................16

5.6.8 External Standby Input...........................................................16

5.6.9 GPS Position Input.................................................................16

5.7 TC20 CONTROLLER ELECTRICAL CONNECTIONS ............................17

5.7.1 TC20 Interface - Pinout .........................................................17

5.8 TC20 CONTROLLER INTERFACE DETAILS .......................................18

5.8.1 TMAP Bus ..............................................................................18

5.8.2 Altitude Out ............................................................................18

5.8.3 Remote ON .............................................................................18

5.8.4 Power .....................................................................................18