Garmin G3X Installation Manual page 330

23.5.17 Temperature Inputs
Some thermocouple inputs are multi-purpose capable and have several configuration options. CHT5/
CHT6, GP6/GP7, MISC TEMP 1/MISC TEMP 2, and Oil Temp can be used for resistive based
temperature sensors. These inputs are configured by the GDU (refer to
systems and to Section 32.4.25
NOTE
If installing an ungrounded thermocouple to an Analog In input, a DC reference must be
added to the LO input. This can be accomplished by adding a resistance of 1 MΩ or less
between ground and the Analog In LO input that the ungrounded thermocouple is installed
on.
CHT1 HI
CHT1 LO
CHT2 HI
CHT2 LO
CHT3 HI
CHT3 LO
CHT4 HI
CHT4 LO
CHT5 HI / CHT 1 RESISTIVE HI
CHT5 LO / CHT 1 RESISTIVE LO
CHT6 HI / CHT 2 RESISTIVE HI
CHT6 LO / CHT 2 RESISTIVE LO
EGT1 HI
EGT1 LO
EGT2 HI
EGT2 LO
EGT3 HI
EGT3 LO
EGT4 HI
EGT4 LO
EGT5 HI
EGT5 LO
EGT6 HI
EGT6 LO
190-01115-01
Rev. AA
for GDU 45X/46X systems).
Pin Name
G3X/G3X Touch Installation Manual - LRU Pinouts
Section 31.4.18 for GDU 37X
Connector Pin
J242 24
J242 12
J242 22
J242 10
J242 20
J242 8
J242 18
J242 6
J242 16
J242 4
J242 14
J242 2
J242 25
J242 13
J242 23
J242 11
J242 21
J242 9
J242 19
J242 7
J242 17
J242 5
J242 15
J242 3
I/O
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
Page 23-39