Ignal, Onnections, 3 signal connections – Advantech PC-LabCard PCI-1784 User Manual
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3.3 Signal Connections
Pin Assignment
Figure 3-2 shows the pin assignments for the 37-pin I/O connector on
the PCI-1784.
EGND
1
20
CH0A-
CH0A+
2
21
CH0B-
CH0B+
3
22
CH0Z-
CH0Z+
4
23
CH1A-
CH1A+
5
24
CH1B-
CH1B+
6
25
CH1Z-
CH1Z+
7
26
CH2A-
CH2A+
8
27
CH2B-
CH2B+
9
28
CH2Z-
CH2Z+
10
29
CH3A-
CH3A+
11
30
CH3B-
CH3B+
12
31
CH3Z-
CH3Z+
13
32
EGND
IDI COM
14
33
IDI1
IDI0
15
34
IDI3
IDI2
16
35
EGND
EGND
17
36
IDO1
IDO0
18
37
IDO3
IDO2
19
.
Fig. 3-2 I/O connector pin assignments for the PCI-1784
I/O Connector Signal Description
Table 3-2 I/O Connector Signal Description
Signal Name
Reference
Direction
Description
EGND
-
-
External Ground.
CH<0..3>A+
EGND
Input
Channel <0..3> A differential positive-input.
CH<0..3>A-
EGND
Input
Channel <0..3> A differential negative-input.
CH<0..3>B+
EGND
Input
Channel <0..3> B differential positive-input.
CH<0..3>B-
EGND
Input
Channel <0..3> B differential negative-input.
CH<0..3>Z+
EGND
Input
Channel <0..3> Z differential positive-input.
CH<0..3>Z-
EGND
Input
Channel <0..3> Z differential negative-input.
IDI<0..3>
IDI COM
Input
Isolated Digital Input, Channels 0 through 3.
IDI COM
-
-
Common input of the Isolated Digital Input.
IDO<0..3>
EGND
Output
Isolated Digital Output, Channels 0 through 3.
EGND
-
-
External Ground.