National Instruments NI 7831R User Manual

Page 59

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Appendix B

Connecting I/O Signals

NI 7831R User Manual

B-6

ni.com

Figure B-3. Connector Pinouts when Using NSC68-262650 Cable

The NSC68-5050 cable connects the signals on the NI 7831R DIO
connectors directly to SSR backplanes for digital signal conditioning. This
cable has a 68-pin male VHDCI connector on one end that plugs into the
NI 7831R DIO connectors. The other end of this cable provides two 50-pin
female headers.

You can plug each of these 50-pin headers directly into an 8-, 16-, 24-, or
32-channel SSR backplane for digital signal conditioning. One of the
50-pin headers contains DIO<0..23> from the NI 7831R DIO connector.
These lines correspond to Slots <0..23> on an SSR backplane in sequential
order. The other 50-pin header contains DIO<24..39> from the NI 7831R
DIO connector. These lines correspond to Slots <0..15> on an SSR
backplane in sequential order. You can connect to an SSR backplane
containing a number of channels unequal to the number of lines on the

2
4
6
8

10
12
14
16
18
20
22
24
26

1
3
5
7
9

11
13
15
17
19
21
23
25

AO0

AOGND0

AO1
AO2

AOGND2

AO3
AO4

AOGND4

AO5
AO6

AOGND6

AO7

NC

NC
NC
AOGND1
NC
NC
AOGND3
NC
NC
AOGND5
NC
NC
AOGND7
NC

AO 0–7 Connector

Pin Assignment

2
4
6
8

10
12
14
16
18
20
22
24
26

1
3
5
7
9

11
13
15
17
19
21
23
25

AI0+

AIGND0

AI1+
AI2+

AIGND2

AI3+
AI4+

AIGND4

AI5+
AI6+

AIGND6

AI7+

AISENSE

AI0–
AI1–
AIGND1
AI2–
AI3–
AIGND3
AI4–
AI5–
AIGND5
AI6–
AI7–
AIGND7
NC

AI 0–7 Connector

Pin Assignment

2
4
6
8

10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50

1
3
5
7
9

11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49

NC
NC
NC
NC
NC
NC
NC
NC

DIO15
DIO14
DIO13
DIO12
DIO11
DIO10

DIO9
DIO8
DIO7
DIO6
DIO5
DIO4
DIO3
DIO2
DIO1
DIO0

+5V

NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND

DIO 0–15 Connector

Pin Assignment

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