Floating Differential Connections
1 M
Ω
Resistor
NI 9207
AI0+
AI0–
COM
Voltage
Source
+
–
Grounded Connections
Voltage
Source
+
–
AI0+
AI0–
COM
NI 9207
Single-Ended Connections
+
–
AI0+
AI0–
COM
Voltage
Source
NI 9207
Connecting an External Power Supply
You must connect an external power supply with a 0 to 30 V voltage range to the
NI-9207. This power supply provides the current for the devices you connect to the
module. You can connect only one external voltage supply to the NI-9207.
1. Connect the positive lead of the power supply to V
sup
.
2. Connect the negative lead of the power supply to COM.
ni.com
8
NI-9207 Getting Started
