National Instruments NI 9472 Operating Instructions Manual page 7

8-channel digital output modules

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Wiring the NI 9472/9474

The NI 9472/9474 provides connections for eight digital output

channels. The NI 9472/9474 has a 10-terminal, detachable screw

terminal connector. The NI 9472 with DSUB has a 25-pin DSUB

connector.

Each channel of the NI 9472/9474 has a terminal or pin, DO, to

which you can connect the device. Each channel has an LED that

indicates the state of the channel.

You must connect an external power supply to the NI 9472/9474.

This power supply provides the current for the devices you connect

to the module. Connect the positive lead of the power supply to the

supply terminal or pin, V

, and the negative lead of the power

sup

supply to the common terminal or pin, COM. The eight digital

output channels are internally referenced to COM. Refer to Table 1

for the terminal assignments of the NI 9472 with screw terminal

and NI 9474. Refer to Figure 2 for the pin assignments of the

NI 9472 with DSUB.

NI 9472/9474 Operating Instructions

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Ni 9474