Chapter 7: Connector Pin Assignments
Two 50-pin headers are provided on these cards: one for each 24-bit I/O group. The mating connector is an
AMP type 1-746285-0 or equivalent. Connector pin assignments are listed below. Notice that every second
line is grounded to minimize crosstalk between signals.
Assignment
Pin
Assignment
Pin
Port C Hi
PC7
1
Ground
2
Port C Hi
PC6
3
"
4
Port C Hi
PC5
5
"
6
Port C Hi
PC4
7
"
8
Port C Lo
PC3*
9
Ground
10
Port C Lo
PC2
11
"
12
Port C Lo
PC1
13
"
14
Port C Lo
PC0
15
"
16
Port B
PB7
17
Ground
18
Port B
PB6
19
"
20
Port B
PB5
21
"
22
Port B
PB4
23
"
24
Port B
PB3
25
"
26
Port B
PB2
27
"
28
Port B
PB1
29
"
30
Port B
PB0
31
"
32
Port A
PA7
33
Ground
34
Port A
PA6
35
"
36
Port A
PA5
37
"
38
Port A
PA4
39
"
40
Port A
PA3
41
"
42
Port A
PA2
43
"
44
Port A
PA1
45
"
46
Port A
PA0
47
"
48
+5 VDC
49
Ground
50
* This line is an I/O port and also a User Interrupt.
Table 7-1:
Connector Pin Assignments
Manual PCI-DIO-48(S)
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