![background image](http://html1.mh-extra.com/html/national-instruments/ni-usb-9201/ni-usb-9201_user-manual-and-specifications_3621784012.webp)
NI USB-9201/9221 User Guide and Specifications
12
ni.com
Figure 7.
Pin Assignments
Connecting Single-Ended Voltage Signals to the NI USB-9201/9221
You can connect single-ended voltage signals to the NI USB-9201/9221.
Connect the positive lead of the voltage signal to AI. Connect the ground
signal to COM.
Figure 8.
Connecting a Single-Ended Voltage Signal to the NI USB-9201/9221
Refer to your software documentation, accessible from
Start»
All Programs»National Instruments»NI-DAQ
, for information about
different methods of reading NI USB-9201/9221 data.
COM
NC
COM
COM
NC
COM
COM
NC
COM
COM
NC
COM
COM
AI0
NC
AI1
AI2
NC
AI3
AI4
NC
AI5
AI6
NC
AI7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
COM
AI
Voltage
Source
USB-9201/9221
+
–