Owner's manual
I/O Connector
279
Basic GPIO Schematic Diagram
7
8
5
6
3
4
1
2
7
8
5
6
3
4
1
2
IP1A
IP1C
IP2A
IP2C
IP3A
IP3C
IP4A
IP4C
IP5A
IP5C
IP6A
IP6C
IP7A
IP7C
IP8A
IP8C
5V Ret
10
9
12
11
14
13
16
15
10
9
12
11
14
13
16
15
Printronix
Expansion
Bus Control
Logic
7
8
5
6
3
4
1
2
7
8
5
6
3
4
1
2
OP1C
OP1F
OP2C
OP2F
OP3C
OP3F
OP4C
OP4F
OP5C
OP5F
OP6C
OP6F
OP7C
OP7F
OP8C
OP8F
10
9
12
11
14
13
16
15
10
9
12
11
14
13
16
15
5V Ret
RY0
RY1
RY2
RY3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
OP1F
OP2F
OP3F
OP4F
OP5F
OP6F
OP7F
OP8F
R1COM
R2COM
R3COM
R4COM
R1NC
R2NC
R3NC
R4NC
R1N0
R2N0
R3N0
R4N0
+5V
5V RET
+24V
24V RET
IP1A
IP2A
IP3A
IP4A
IP5A
IP6A
IP7A
IP8A
IP1C
IP2C
IP3C
IP4C
IP5C
IP6C
IP7C
IP8C
OP1C
OP2C
OP3C
OP4C
OP5C
OP6C
OP7C
OP8C
1
3
5
9
RY0
RY1
RY2
RY3
+5V
1
1
1
1
2
2
2
2
K1
K2
K3
K4
Relays: NAI5 TX2
All anode protection resistors are 4.7K Ohms.
R1COM
R1NC
R1NO
R2COM
R2NC
R2NO
R3COM
R3NC
R3NO
R4COM
R4NC
R4NO
K1
K2
K3
K4