Connecting a Device
You can directly connect the NI 9475 to a variety of industrial
devices such as solenoids, motors, actuators, relays, and lamps.
Make sure the devices you connect to the NI 9475 are compatible
with the output specifications of the module.
Connect the device to DO and connect the common of the device
to COM.
Figure 2.
Connecting a Device to the NI 9475
External
Power
Supply
Device
COM
DO
V
sup
NI 9475
+
–
Note
When the device is off, DO is not connected to
COM. For large source impedances, you must use a
pull-down resistor between DO and COM. Visit
12
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NI 9475 Getting Started Guide
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