National Instruments NI 9476 - Manual (Page 8)

NI 9476 Operating Instructions and Specifications 8 ni.com
You can directly connect the NI 9476 to a variety of industrial
devices such as solenoids, motors, actuators, relays, and lamps.
Make sure the devices you connect to the NI 9476 are compatible
with the output specifications of the module. Refer to the
Specifications section for more information about the output
specifications.
Connect the device to DO and COM, and connect the external
power supply to V
sup
and COM, as shown in Figure 2.
Figure 2. Connecting a Device to the NI 9476
NI 9476
+
_
COM
V
sup
Device
DO External
Power
Supply