Connecting Signals
The following figure shows the I/O connector pin assignments and locations for the
NI USB-7855R.
Caution
To ensure the specified EMC performance, operate this product 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-7855R and on the computer chassis.
For the maximum input and output ratings for each signal, refer to the
NI USB-7855R Specifications
, available at
ni.com/manuals.
Figure 3.
NI USB-7855R Connector Pin Assignments and Locations
DIO30
GND
DIO28
GND
DIO26
GND
DIO24
GND
DIO22
GND
DIO20
GND
DIO18
GND
DIO16
GND
DIO14
GND
DIO12
GND
DIO10
GND
DIO8
GND
DIO6
GND
DIO4
GND
DIO2
GND
DIO0
GND
GND
GND
DIO31
DIO29
GND
GND
DIO25
GND
DIO23
GND
DIO27
GND
DIO21
GND
DIO19
GND
DIO17
GND
DIO15
GND
DIO13
GND
DIO11
GND
DIO9
GND
DIO7
GND
DIO5
GND
DIO3
GND
DIO1
GND
GND
GND
68 34
67 33
66 32
65 31
64 30
63 29
62 28
61 27
60 26
59 25
58 24
57 23
56 22
55 21
54 20
53 19
52 18
51 17
50 16
49 15
48 14
47 13
46 12
45 11
44 10
43
9
42
8
41
7
40
6
39
5
38
4
37
3
36
2
35
1
+5V
DIO0
DIO1
DIO2
DIO3
DIO4
DIO5
DIO6
DIO7
DIO9
DIO11
DIO13
DIO15
AO7
AO6
AO5
AO4
AO3
AO2
AO1
AO0
AISENSE
AI7+
AIGND6
AI6+
AI5+
AIGND4
AI4+
AI3+
AIGND2
AI2+
AI1+
AIGND0
AI0+
+5V
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DIO8
DIO10
DIO12
DIO14
AOGND7
AOGND6
AOGND5
AOGND4
AOGND3
AOGND2
AOGND1
AOGND0
NC
AI7–
AIGND7
AI6–
AI5–
AIGND5
AI4–
AI3–
AIGND3
AI2–
AI1–
AIGND1
AI0–
68 34
67 33
66 32
65 31
64 30
63 29
62 28
61 27
60 26
59 25
58 24
57 23
56 22
55 21
54 20
53 19
52 18
51 17
50 16
49 15
48 14
47 13
46 12
45 11
44 10
43
9
42
8
41
7
40
6
39
5
38
4
37
3
36
2
35
1
CONNECTOR 0
(DIO)
CONNECTOR 1
(MIO)
TERMINAL 34
TERMINAL 68
TERMINAL 1
TERMINAL 35
TERMINAL 34
TERMINAL 68
TERMINAL 1
TERMINAL 35
The +5 V terminals on the I/O connector 5 V referenced to GND. Use these terminals
to power external circuitry. The NI USB-7855R is protected from overvoltage and overcurrent
NI USB-7855R Getting Started Guide
| © National Instruments | 5
Summary of Contents for USB-7855
Page 1: ...USB 7855...
