Garmin G3X Installation Manual page 332

23.5.18 Transducer Output Power
The GEA 24 supplies output power for engine/airframe sensors that may require supply voltage excitation.
The GEA 24 outputs voltage levels of +5 and +12 Vdc. Each output can supply a maximum of 50 mA. If
more than 50 mA is needed for a sensor, 3 outputs of the same voltage may be spliced together to allow an
output current of up to 100 mA. Transducers that require more current (such as Princeton capacitive fuel
quantity converters) must be supplied from aircraft power instead of GEA 24 transducer power output
pins.
The transducer output pins are listed in the following table. Additionally, the pins are also listed in the
tables for their respective default functionality.
FUEL PRESS XDCR +12V
FUEL PRESS XDCR +5V
RPM XDCR +12V_1
RPM XDCR +12V_2
MANIFOLD PRESS XDCR +12V
MANIFOLD PRESS XDCR +5V
OIL PRESS XDCR +12V
OIL PRESS XDCR +5V
FUEL XDCR +12V_1
FUEL XDCR +12V_2
GP +5V_1
FUEL QTY +5V_1
FUEL QTY +5V_2
POS 3 HI / +5V_3
POS 4 HI / +5V_4
GP1 HI / +5V
GP2 HI / +5V
GP +5V_2
GP +5V_3
POS 5 HI / +5V
FUEL XDCR +12V_3
FUEL XDCR +12V_4
GP +12V
190-01115-01
Rev. AA
Pin Name
G3X/G3X Touch Installation Manual - LRU Pinouts
Connector Pin
J243 3
J243 4
J243 9
J243 10
J243 14
J243 15
J243 18
J243 19
J243 24
J243 25
J243 26
J244 5
J244 8
J244 11
J244 14
J244 18
J244 21
J244 24
J244 27
J244 30
J244 34
J244 35
J244 50
I/O
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
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