Garmin GDU 370 Installation Manual page 144

The following table lists the minimum frequency, maximum frequency, and duty cycles for each of these
inputs.
Pin Name
FREQUENCY COUNTER IN* 1
FREQUENCY COUNTER IN* 2
FREQUENCY COUNTER IN* 3
FREQUENCY COUNTER IN* 4
*Each frequency counter channel will be configured for a high or low speed input based on the signal
being measured.
A.3.10 Fuel Select Outputs
Pin Connector
76 P732
77 P732
Page A-16
Revision A
Minimum Frequency
1 Hz
1 Hz
1 Hz
1 Hz
Pin Name
RESERVED (FUEL SENSOR PULL-UP 2 (ANALOG IN 15))
RESERVED (FUEL SENSOR PULL-UP 1 (ANALOG IN 14))
Maximum Frequency
500 Hz/100 KHz*
500 Hz/100 KHz*
500 Hz/100 KHz*
500 Hz/100 KHz*
G3X Installation Manual – Pinouts
Duty
Cycle
50%
50%
50%
50%
I/O
OUT
OUT
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