National Instruments sbRIO-9601 User Manual page 13

Powering the NI sbRIO Device
Select a high-quality power supply with less than 20 mV ripple. The NI sbRIO
Note
device has some internal power-supply filtering on the positive side, but a low-quality
power supply can inject noise into the ground path, which is unfiltered.
NI sbRIO-9601/9602/9602XT User Guide
for the subnet where you want it to be and physically move it to the other
subnet. Refer to the Measurement & Automation Explorer Help for more
information about configuring the device in Measurement & Automation
Explorer (MAX).
The NI sbRIO device requires a power supply connected to J3. The
supply voltage and current must meet the specifications in the
Requirements section of this document, but the actual power requirement
depends on how the device is physically configured, programmed, and
used. To determine the power requirement of your application, you must
measure the power consumption during execution, and add 20% to your
estimates to account for transient and startup conditions.
Four elements of the NI sbRIO device can require power: sbRIO internal
operation; 3.3 V DIO; 5 V output; and board-only C Series modules
installed on the device. Refer to the
formulas and examples for calculating power requirements for different
configurations and application types.
Complete the following steps to connect a power supply to the device.
Refer to Figure 10 for an illustration of the power supply connections.
Common
(–)
Figure 10. Connecting a Power Supply
Power Requirements
Voltage
(+)
12
Power
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