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Chapter 2
Using the SCXI-1581
SCXI-1581 User Manual
2-2
ni.com
Table 2-1.
Front Signal Pin Assignments
Front Connector Diagram
Pin Number
Column A
Column B
Column C
32
NC
EX0–
EX0+
31
NC
EX1–
EX1+
30
NC
EX2–
EX2+
29
NC
EX3–
EX3+
28
RSVD
EX4–
EX4+
27
RSVD
EX5–
EX5+
26
RSVD
EX6–
EX6+
25
RSVD
EX7–
EX7+
24
NC
EX8–
EX8+
23
NC
EX9–
EX9+
22
NC
EX10–
EX10+
21
NC
EX11–
EX11+
20
RSVD
EX12–
EX12+
19
RSVD
EX13–
EX13+
18
NC
EX14–
EX14+
17
NC
EX15–
EX15+
16
NC
EX16–
EX16+
15
NC
EX17–
EX17+
14
NC
EX18–
EX18+
13
NC
EX19–
EX19+
12
NC
EX20–
EX20+
11
NC
EX21–
EX21+
10
NC
EX22–
EX22+
9
NC
EX23–
EX23+
8
NC
EX24–
EX24+
7
NC
EX25–
EX25+
6
NC
EX26–
EX26+
5
NC
EX27–
EX27+
4
NC
EX28–
EX28+
3
NC
EX29–
EX29+
NC means no connection
2
CGND
EX30–
EX30+
— means no physical pin
1
RSVD
EX31–
EX31+
Column
A B C
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1