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Caution
only with shielded cables and accessories.
Note
NI is not liable for connections that exceed any of the maximum
ratings of input or output signals on the NI USB-7856R and on the
computer chassis. For the maximum input and output ratings for each
signal, refer to the NI USB-7856R Specifications, available at ni.com/
manuals.
Figure 3. NI USB-7856R Connector Pin Assignments and Locations
GND
68 34
GND
GND
67 33
GND
GND
66 32
GND
DIO0
65 31
DIO1
GND
64 30
GND
DIO2
63 29
DIO3
GND
62 28
GND
DIO4
61 27
DIO5
GND
60 26
GND
DIO6
59 25
DIO7
GND
58 24
GND
DIO8
57 23
DIO9
GND
56 22
GND
DIO10
55 21
DIO11
GND
54 20
GND
DIO12
53 19
DIO13
GND
52 18
GND
DIO14
51 17
DIO15
GND
50 16
GND
DIO16
49 15
DIO17
GND
48 14
GND
47 13
DIO18
DIO19
GND
46 12
GND
DIO20
45 11
DIO21
GND
44 10
GND
DIO22
43
9
DIO23
42
8
GND
GND
DIO24
41
7
DIO25
GND
40
6
GND
DIO26
39
5
DIO27
GND
38
4
GND
37
3
DIO28
DIO29
GND
36
2
GND
DIO30
35
1
DIO31
CONNECTOR 0
(DIO)
TERMINAL 34
TERMINAL 1
TERMINAL 68
TERMINAL 35
Where to Go Next
Refer to the following figure for information about other product tasks and
associated resources for those tasks.
8
ni.com
To ensure the specified EMC performance, operate this product
AI0+
68 34
AI0–
AIGND0
67 33
AIGND1
AI1+
66 32
AI1–
AI2+
65 31
AI2–
AIGND2
64 30
AIGND3
AI3+
63 29
AI3–
AI4+
62 28
AI4–
AIGND4
61 27
AIGND5
AI5+
60 26
AI5–
AI6+
59 25
AI6–
AIGND6
58 24
AIGND7
AI7+
57 23
AI7–
AISENSE
56 22
NC
AO0
55 21
AOGND0
54 20
AO1
AOGND1
AO2
53 19
AOGND2
AO3
52 18
AOGND3
AO4
51 17
AOGND4
AO5
50 16
AOGND5
49 15
AO6
AOGND6
AO7
48 14
AOGND7
DIO15
47 13
DIO14
DIO13
46 12
DIO12
DIO11
45 11
DIO10
44 10
DIO9
DIO8
DIO7
43
9
DGND
DIO6
42
8
DGND
DIO5
41
7
DGND
DIO4
40
6
DGND
39
5
DIO3
DGND
DIO2
38
4
DGND
DIO1
37
3
DGND
DIO0
36
2
DGND
+5V
35
1
+5V
CONNECTOR 1
(MIO)
TERMINAL 34
TERMINAL 1
TERMINAL 35
TERMINAL 68
USB-7856 Getting Started
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