Caution
Apply external signals only while the NI 5646R-G is powered on.
Applying external signals while the device is powered off may cause damage.
Table 1.
Device Front Panel Icon Definitions
Refer to the user documentation for required maintenance measures to ensure user
safety and/or preserve the specified EMC performance.
The signal pins of this product's input/output ports can be damaged if subjected to
ESD. To prevent damage, turn off power to the product before connecting cables and
employ industry-standard ESD prevention measures during installation, maintenance,
and operation.
Table 2.
NI 5646R-G General Front Panel Connectors
Connector
Use
REF IN
Input terminal that allows for the use of an external 10 MHz Reference
Clock.
REF OUT
Output terminal that can export a 10 MHz Reference Clock or the 250 MHz
Sample Clock.
PFI 0
Programmable-function digital I/O (DIO) connector for use with triggers or
events.
DIGITAL I/O DIO terminal that contains general-purpose 3.3 V LVTTL DIO signals. DIO
lines are direction-configurable as input or output.
Table 3.
NI 5646R-G RF Front Panel Connectors
Connector
Use
RF OUT 0 RF OUT
Output terminal for RF signals.
CAL OUT
Caution
Do not disconnect the cable that connects
CAL IN to CAL OUT. Removing the cable from or
tampering with the CAL IN or CAL OUT front panel
connectors voids the product calibration and
specifications are no longer warranted.
Connector that is used when running self-calibration on the device.
LO OUT
Output terminal for exporting the RF OUT 0 LO source.
LO IN
Input terminal that allows for the use of an external LO for
RF OUT 0.
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NI PXIe-5646R-G Getting Started Guide