Figure 12. NI USB-7846R Front Panel
R Series Multifunction RIO
CONNECTOR 0 (RDIO)
CONNECTOR 1 (RMIO)
1
2
3
USER
+5 V Power Source
Use the +5 V terminals on the I/O connector 5 V referenced to DGND to power
external circuitry.
Caution
Never connect the +5 V power terminals to analog or digital ground or
any other voltage source on the NI USB-7846R or any other device. Doing so can
damage the device and the computer. National Instruments is not liable for damage
resulting from such a connection.
The power rating is 4.75 to 5.1 VDC at 0.5 A.
Autonomous Mode
You can run the NI USB-7846R without a USB connection to a host computer using
Autonomous Mode. To collect data the NI USB-7846R acquires in Autonomous Mode, you
must reconnect the NI USB-7846R to a host computer.
Caution
Data is lost and is not recoverable upon reconnection if a DMA FIFO
overflows while the NI USB-7846R is disconnected from the host computer or if the
NI USB-7846R loses power at any point.
Autonomous Mode includes the following capabilities.
NI USB-7846R User Manual
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© National Instruments
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