Chapter 4
Signal Connections
PCI-4451/4452/4453/4454 User Manual
4-2
www.ni.com
Analog I/O Connector Signal Descriptions
♦
PCI-4451/4452
Figure 4-1 shows the analog pin connections for the PCI-4451/4452.
Figure 4-1.
Analog Pin Connections for the PCI-4451/4452
DGND
+5 V
AOGND
1†
NC
AOGND
1†
NC
AOGND
1†
–DAC1OUT
1
AOGND
1†
–DAC0OUT
1
AIGND
†
NC
AIGND
†
NC
AIGND
†
NC
AIGND
†
NC
AIGND
†
NC
AIGND
†
NC
AIGND
†
NC
AIGND
†
NC
AIGND
†
–ACH3
2
AIGND
†
–ACH2
2
AIGND
†
–ACH1
AIGND
†
–ACH0
DGND
AOGND
1†
NC
NC
AOGND
1
+DAC1OUT
1
AOGND
1
+5 V
AOGND
1†
+DAC0OUT
1
AIGND
†
NC
AIGND
†
NC
AIGND
†
NC
AIGND
†
NC
AIGND
†
NC
AIGND
†
NC
AIGND
†
NC
AIGND
†
NC
AIGND
+ACH3
2
AIGND
+ACH2
2
AIGND
+ACH1
AIGND
+ACH0
1
35
2
36
3
37
4
38
5
39
6
40
7
41
8
42
9
43
10 44
11 45
12 46
13 47
14 48
15 49
16 50
17 51
18 52
19 53
20 54
21 55
22 56
23 57
24 58
25 59
26 60
27 61
28 62
29 63
30 64
31 65
32 66
33 67
34 68
1
PCI-4451 only
2
PCI-4452 only
†
These AIGND and AOGND pins are not connected in the SHC68-C68-A1 cable.