Powering Analog Devices
You can connect an external power supply to the NI 9351 to
power analog devices connected to the module. Connect the
positive lead of the power supply to a AI V
sup
pin and the
negative lead of the power supply to AI COM. Install a
2 A maximum, fast-acting fuse between the external power
supply and the AI V
sup
pin.
Note
The AI V
sup
pins are internally connected to
each other. You can connect only one external voltage
supply to the device.
Caution
Do not remove or insert modules if the
external power supply connected to the AI V
sup
and
AI COM pins is powered on.
Functional Safety Editor I/O Configurations
Refer to the following diagrams to connect the NI 9351 based on
the I/O configurations in the Functional Safety Editor. For more
information about I/O Configurations, refer to the
C Series
Functional Safety Manual
18
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NI 9351 Getting Started Guide