J1 – TTL I/O Connector

Pin	Name	Pin	Name	Pin	Name
1	ID0	22	ID1	43	ID2
2	I/O Channel 0	23	I/O Channel 16	44	I/O Channel 32
3	I/O Channel 1	24	I/O Channel 17	45	I/O Channel 33
4	I/O Channel 2	25	I/O Channel 18	46	I/O Channel 34
5	I/O Channel 3	26	I/O Channel 19	47	I/O Channel 35
6	I/O Channel 4	27	I/O Channel 20	48	I/O Channel 36
7	I/O Channel 5	28	I/O Channel 21	49	I/O Channel 37
8	I/O Channel 6	29	I/O Channel 22	50	I/O Channel 38
9	I/O Channel 7	30	I/O Channel 23	51	I/O Channel 39
10	I/O Channel 8	31	I/O Channel 24	52	I/O Channel 40
11	I/O Channel 9	32	I/O Channel 25	53	I/O Channel 41
12	I/O Channel 10	33	I/O Channel 26	54	I/O Channel 42
13	I/O Channel 11	34	I/O Channel 27	55	I/O Channel 43
14	I/O Channel 12	35	I/O Channel 28	56	I/O Channel 44
15	I/O Channel 13	36	I/O Channel 29	57	I/O Channel 45
16	I/O Channel 14	37	I/O Channel 30	58	I/O Channel 46
17	I/O Channel 15	38	I/O Channel 31	59	I/O Channel 47
18	I/O Channel 48	39	I/O Channel 51	60	I/O Channel 54
19	I/O Channel 49	40	I/O Channel 52	61	I/O Channel 55
20	I/O Channel 50	41	I/O Channel 53	62	GND
21	GND	42	GND

J1 TTL I/O Pin Out

Legend:

ID0- ID2: Connector ID readback pins.
I/O Channel 0-55: TTL I/O.
GND: Ground.

J1 – TTL I/O Connector

Pin

Name

Pin

Name

Pin

Name

1

ID0

22

ID1

43

ID2

2

I/O Channel 0

23

I/O Channel 16

44

I/O Channel 32

3

I/O Channel 1

24

I/O Channel 17

45

I/O Channel 33

4

I/O Channel 2

25

I/O Channel 18

46

I/O Channel 34

5

I/O Channel 3

26

I/O Channel 19

47

I/O Channel 35

6

I/O Channel 4

27

I/O Channel 20

48

I/O Channel 36

7

I/O Channel 5

28

I/O Channel 21

49

I/O Channel 37

8

I/O Channel 6

29

I/O Channel 22

50

I/O Channel 38

9

I/O Channel 7

30

I/O Channel 23

51

I/O Channel 39

10

I/O Channel 8

31

I/O Channel 24

52

I/O Channel 40

11

I/O Channel 9

32

I/O Channel 25

53

I/O Channel 41

12

I/O Channel 10

33

I/O Channel 26

54

I/O Channel 42

13