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Chapter 5
Signal Connections
Digital I/O Connector
NI PCI-7342 Hardware User Manual
All the general-purpose digital I/O lines are available on a separate 68-pin
digital I/O connector. Figure 5-11 shows the pin assignments for this
connector.
Port 1:bit 0
Digital Ground
Port 1:bit 3
Port 1:bit 4
Digital Ground
Port 1:bit 7
Port 2:bit 0
Port 2:bit 1
Digital Ground
Digital Ground
Digital Ground
Port 2:bit 6
Port 2:bit 7
Port 3:bit 0
Digital Ground
Port 3:bit 3
Port 3:bit 4
Digital Ground
Port 3:bit 7
Port 4:bit 0
Digital Ground
Port 4:bit 3
Port 4:bit 4
Digital Ground
Port 4:bit 7
Figure 5-11. 68-Pin Digital I/O Connector Pin Assignments
+5 V
1
35
Digital Ground
PCLK
2
36
Digital Ground
Reserved
3
37
Digital Ground
Reserved
4
38
DPull
PWM1
5
39
Digital Ground
Reserved
6
40
Reserved
Reserved
7
41
Digital Ground
Reserved
8
42
Digital Ground
PWM2
9
43
Digital Ground
10
44
Port 1:bit 1
11
45
Port 1:bit 2
12
46
Digital Ground
13
47
Port 1:bit 5
14
48
Port 1:bit 6
15
49
Digital Ground
16
50
Digital Ground
17
51
Port 2:bit 2
18
52
Port 2:bit 3
19
53
Port 2:bit 4
20
54
Port 2:bit 5
21
55
Digital Ground
22
56
Digital Ground
23
57
Port 3:bit 1
24
58
Port 3:bit 2
25
59
Digital Ground
26
60
Port 3:bit 5
27
61
Port 3:bit 6
28
62
Digital Ground
29
63
Port 4:bit 1
30
64
Port 4:bit 2
31
65
Digital Ground
32
66
Port 4:bit 5
33
67
Port 4:bit 6
34
68
Digital Ground
5-16
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