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Table 5. NI 5645R RF Front Panel Connectors (Continued)
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.
Table 6. NI 5645R I/Q Front Panel Connectors
Connector
Use
Terminal Configuration
Differential
Single-ended
I/Q IN 0
I+
Input terminal for in-phase
signals.
Positive terminal Input signal terminal
I-
Input terminal for in-phase
signals.
Negative terminal Requires 50 Ω
termination
Q+ Input terminal for
quadrature signals.
Positive terminal Input signal terminal
Q- Input terminal for
quadrature signals.
Negative terminal Requires 50 Ω
termination
I/Q OUT 0 I+
Output terminal for in-phase
signals.
Positive terminal Output signal terminal
I-
Output terminal for in-phase
signals.
Negative terminal Requires 50 Ω
termination
Q+ Output terminal for
quadrature signals.
Positive terminal Output signal terminal
Q- Output terminal for
quadrature signals.
Negative terminal Requires 50 Ω
termination
NI PXIe-5645R Getting Started Guide
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© National Instruments
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