Sourcing-Output Connections; Connecting Digital Devices - National Instruments NI 9375 Getting Started Manual

Sourcing-Output Connections

External
Power
Supply
The NI 9375 channel registers as ON when the sourcing-output
device drives enough current or applies enough voltage to DI. If
no device is connected to DI, the channel registers as OFF.

Connecting Digital Devices

You can connect a variety of industrial devices, such as solenoids,
motors, actuators, relays, and lamps to the NI 9375. You must
connect an external power supply to the NI 9375. The power
supply provides the current for the output channels.
Sourcing-Output
Device
+
–
NI 9375 Getting Started Guide | © National Instruments | 13
DI
DI COM
NI 9375