Garmin GDU 370 Installation Manual page 142

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.
Pin Connector
61 P732
41 P732
21 P732
1 P732
2 P732
22 P732
60 P732
40 P732
73 P732
53 P732
33 P732
13 P732
63 P732
43 P732
23 P732
3 P732
24 P732
4 P732
62 P732
42 P732
30 P732
29 P732
34 P732
14 P732
72 P732
52 P732
25 P732
5 P732
64 P732
44 P732
26 P732
45 P732
65 P732
6 P732
71 P732
51 P732
32 P732
12 P732
31 P732
11 P732
69 P732
49 P732
Page A-14
Revision A
NOTE
Pin Name
ANALOG IN 1 HI
ANALOG IN 1 LO
ANALOG IN 2 LO
ANALOG IN 2 LO
ANALOG IN 3 HI
ANALOG IN 3 LO
ANALOG IN 4 HI
ANALOG IN 4 LO
ANALOG IN 5 HI
ANALOG IN 5 LO
ANALOG IN 6 HI
ANALOG IN 6 LO
ANALOG IN 7 HI
ANALOG IN 7 LO
ANALOG IN 8 HI
ANALOG IN 8 LO
ANALOG IN 9 HI
ANALOG IN 9 LO
ANALOG IN 10 HI
ANALOG IN 10 LO
ANALOG IN 11 HI
ANALOG IN 11 LO
ANALOG IN 12 HI
ANALOG IN 12 LO
ANALOG IN 13 HI
ANALOG IN 13 LO
ANALOG IN 14 HI
ANALOG IN 14 LO
ANALOG IN 15 HI
ANALOG IN 15 LO
ANALOG IN 16 HI
ANALOG IN 16 LO
ANALOG IN 17 HI
ANALOG IN 17 LO
ANALOG IN 18 HI
ANALOG IN 18 LO
ANALOG IN 19 HI
ANALOG IN 19 LO
ANALOG IN 20 HI
ANALOG IN 20 LO
ANALOG IN 21 HI
ANALOG IN 21 LO
continued
I/O
G3X Installation Manual – Pinouts
190-01115-01
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN