Purpose of GP-AD-24 pins

AO0

21

Output analogue channel 0

AO1

42

Output analogue channel 1

AO2

20

Output analogue channel 2

AO3

41

Output analogue channel 3

AO4

19

Output analogue channel 4

AO5

40

Output analogue channel 5

AO6

18

Output analogue channel 6

AO7

39

Output analogue channel 7

AO8

17

Output analogue channel 8

AO9

38

Output analogue channel 9

AO10

16

Output analogue channel 10

AO11

37

Output analogue channel 11

AO12

15

Output analogue channel 12

AO13

36

Output analogue channel 13

AO14

14

Output analogue channel 14

AO15

35

Output analogue channel 15

AO16

13

Output analogue channel 16

AO17

34

Analogue output channel 17

AO18

12

Output analogue channel 18

AO19

33

Output analogue channel 19

AO20

11

Output analogue channel 20

AO21

32

Output analogue channel 21

AO22

10

Output analogue channel22

AO23

31

Analogue output channel 23

AO24

9

Analogue output channel 24

AO25

30

Analogue output channel 25

AO26

8

Output analogue channel 26

AO27

29

Output analogue channel 27

AO28

7

Output analogue channel 28

AO29

28

Output analogue channel 29

AO30

6

Output analogue channel 30

AO31

27

Output analogue channel 31

+12V

22

+12V for external power supply

+5V

1

+5 V for external power supply

GND

43 ~ 63

Ground

NC

2 ~ 5, 23 ~ 26

Not used