User's Manual

TT21/TT22 Transponder Installation Manual 13 July 2009
00560-00 Issue AF
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Trig Avionics Limited Page 17
5.7 TC20 Controller Electrical Connections
The TC20 controller has a single 9 way D type male connector to link to the
transponder, and optionally to connect to a GPS for baro-aiding.
5.7.1 TC20 Interface - Pinout
Pin
Signal
Direction
1
Ground
-
2
TMAPA
Bidirectional
3
TMAPB
Bidirectional
4
Altitude Out
Output
5
Reserved
Input
6
Ground
-
7
Remote ON
Output
8
Power
Input
9
Ground
-
The following diagram shows the connector orientation as viewed from the
wiring side.