Configures the Reference Clock and the frequency reference source.


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Inputs/Outputs

  • cstr.png Selector String —

    Selector String specifies a Selector String comprising of the signal name. You do not need to use a selector string, if you want to configure this parameter for all signal instances.

    Example:

    "signal::sig1"

    You can use the personality specific Build String VI to build the selector string.

  • cgenclassrntag.png Instrument Handle In —

    Instrument Handle In identifies the instrument session. Instrument Handle In is obtained from the RFmxInstr Initialize NIRFSA VI or the RFmxInstr Initialize NIRFSA (Array) VI.

  • cstr.png Frequency Reference Source —

    Frequency Reference Source specifies the frequency reference source.

    The default value for PXIe-5840 with PXIe-5653 is RefIn2, else the default value is OnboardClock.

    OnboardClock (OnboardClock)

    PXIe-5663/5663E: RFmx locks the PXIe-5663/5663E to the PXIe-5652 LO source onboard clock. Connect the REF OUT2 connector (if it exists) on the PXIe-5652 to the PXIe-5622 CLK IN terminal. On versions of the PXIe-5663/5663E that lack a REF OUT2 connector on the PXIe-5652, connect the REF IN/OUT connector on the PXIe-5652 to the PXIe-5622 CLK IN terminal.

    PXIe-5665: RFmx locks the PXIe-5665 to the PXIe-5653 LO source onboard clock. Connect the 100 MHz REF OUT terminal on the PXIe-5653 to the PXIe-5622 CLK IN terminal.

    PXIe-5668: Lock the PXIe-5668 to the PXIe-5653 LO SOURCE onboard clock. Connect the LO2 OUT connector on the PXIe-5606 to the CLK IN connector on the PXIe-5624.

    PXIe-5644/5645/5646, PXIe-5820/5840/5841/5842/5860: RFmx locks the device to its onboard clock.

    PXIe-5830/5831/5832: For PXIe-5830, connect the PXIe-5820 REF IN connector to the PXIe-3621 REF OUT connector. For PXIe-5831, connect the PXIe-5820 REF IN connector to the PXIe-3622 REF OUT connector. For PXIe-5832, connect the PXIe-5820 REF IN connector to the PXIe-3623 REF OUT connector.

    PXIe-5831 with PXIe-5653: Connect the PXIe-5820 REF IN connector to the PXIe-3622 REF OUT connector. Connect the PXIe-5653 REF OUT (10 MHz) connector to the PXIe-3622 REF IN connector.

    PXIe-5832 with PXIe-5653: Connect the PXIe-5820 REF IN connector to the PXIe-3623 REF OUT connector. Connect the PXIe-5653 REF OUT (10 MHz) connector to the PXIe-3623 REF IN connector.

    PXIe-5842: Lock to the PXIe-5655 onboard clock. Cables between modules are required as shown in the Getting Started Guide for the instrument.

    PXIe-5860:Lock to the PXIe-5860 onboard clock
    RefIn (RefIn)

    PXIe-5663/5663E: Connect the external signal to the PXIe-5652 REF IN/OUT connector. Connect the REF OUT2 connector (if it exists) on the PXIe-5652 to the PXIe-5622 CLK IN terminal.

    PXIe-5665: Connect the external signal to the PXIe-5653 REF IN connector. Connect the 100 MHz REF OUT terminal on the PXIe-5653 to the PXIe-5622 CLK IN connector. If your external clock signal frequency is set to a frequency other than 10 MHz, set the Frequency Reference Frequency property according to the frequency of your external clock signal.

    PXIe-5668: Connect the external signal to the PXIe-5653 REF IN connector. Connect the LO2 OUT on the PXIe-5606 to the CLK IN connector on the PXIe-5622. If your external clock signal frequency is set to a frequency other than 10 MHz, set the Frequency Reference Frequency property according to the frequency of your external clock signal.

    PXIe-5644/5645/5646, PXIe-5820/5840/5841/5842: RFmx locks the device to the signal at the external REF IN connector.

    PXIe-5830/5831/5832: For PXIe-5830, connect the PXIe-5820 REF IN connector to the PXIe-3621 REF OUT connector. For PXIe-5831, connect the PXIe-5820 REF IN connector to the PXIe-3622 REF OUT connector. For PXIe-5832, connect the PXIe-5820 REF IN connector to the PXIe-3623 REF OUT connector. For PXIe-5830, lock the external signal to the PXIe-3621 REF IN connector. For PXIe-5831, lock the external signal to the PXIe-3622 REF IN connector. For PXIe-5832, lock the external signal to the PXIe-3623 REF IN connector.

    PXIe-5831 with PXIe-5653: Connect the PXIe-5820 REF IN connector to the PXIe-3622 REF OUT connector. Connect the PXIe-5653 REF OUT (10 MHz) connector to the PXIe-3622 REF IN connector. Lock the external signal to the PXIe-5653 REF IN connector.

    PXIe-5832 with PXIe-5653: Connect the PXIe-5820 REF IN connector to the PXIe-3623 REF OUT connector. Connect the PXIe-5653 REF OUT (10 MHz) connector to the PXIe-3623 REF IN connector. Lock the external signal to the PXIe-5653 REF IN connector.

    PXIe-5842: Lock to the signal at the REF IN connector on the associated PXIe-5655. Cables between modules are required as shown in the Getting Started Guide for the instrument.

    PXIe-5860:Lock to the signal at the REF IN connector on the PXIe-5860.

    PXI_Clk (PXI_Clk)

    PXIe-5668: Lock the PXIe-5653 to the PXI backplane clock. Connect the PXIe-5606 LO2 OUT to the LO2 IN connector on the PXIe-5624.

    PXIe-5830/5831/5832/5841 with PXIe-5655/5842: Lock LO module to the PXI backplane clock. Cables between modules are required as shown in the Getting Started Guide for the instrument.

    PXIe-5644/5645/5646, PXIe-5663/5663E/5665, and PXIe-5820/5840/5841/5842/5860: RFmx locks the device to the PXI backplane clock.
    ClkIn (ClkIn)

    PXIe-5663/5663E: RFmx locks the PXIe-5663/5663E to an external 10 MHz signal. Connect the external signal to the PXIe-5622 CLK IN connector, and connect the PXIe-5622 CLK OUT connector to the FREQ REF IN connector on the PXIe-5652.

    PXIe-5665: RFmx locks the PXIe-5665 to an external 100 MHz signal. Connect the external signal to the PXIe-5622 CLK IN connector, and connect the PXIe-5622 CLK OUT connector to the REF IN connector on the PXIe-5653. Set the Frequency Reference Frequency property to 100 MHz.

    PXIe-5668: Lock the PXIe-5668 to an external 100 MHz signal. Connect the external signal to the CLK IN connector on the PXIe-5624, and connect the PXIe-5624 CLK OUT connector to the REF IN connector on the PXIe-5653. Set the Frequency Reference Frequency property to 100 MHz.

    PXIe-5644/5645/5646, PXIe-5820/5830/5831/5831 with PXIe-5653/5832/5832 with PXIe-5653/5840/5841/5842/5860: This configuration does not apply.
    RefIn2 (RefIn2)

    Configure open NI-RFSG sessions to the device to use RefIn for the PXIe-5840 or OnboardClock for the PXIe-5840 with PXIe-5653.

    PXIe-5663/5663E/5665/5668, PXIe-5644/5645/5646, and PXIe-5820/5830/5831/5831 with PXIe-5653/5832/5832 with PXIe-5653/5840/5841/5842/5860: This configuration does not apply.
    PXI_ClkMaster (PXI_ClkMaster)

    PXIe-5831 with PXIe-5653: RFmx configures the PXIe-5653 to export the reference clock and configures the PXIe-5820 and PXIe-3622 to use PXI_Clk as the reference clock source. You must connect the PXIe-5653 REF OUT (10 MHz) connector to the PXI chassis REF IN connector.

    PXIe-5832 with PXIe-5653: RFmx configures the PXIe-5653 to export the reference clock and configures the PXIe-5820 and PXIe-3623 to use PXI_Clk as the reference clock source. You must connect the PXIe-5653 REF OUT (10 MHz) connector to the PXI chassis REF IN connector.

    PXIe-5663/5663E/5665/5668, PXIe-5644/5645/5646, PXIe-5820/5830/5831/5832/5840/5841/5842/5860: This configuration does not apply.
  • cdbl.png Frequency (Hz) —

    Frequency specifies the Reference Clock rate when the Frequency Reference Source parameter is set to ClkIn or RefIn. This value is expressed in Hz.

    The default value is 10 MHz.

  • cerrcodeclst.png error in (no error) —

    error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

  • igenclassrntag.png Instrument Handle Out —

    Instrument Handle Out passes a reference of the instrument session to the next VI.

  • ierrcodeclst.png error out —

    error out contains error information. This output provides standard error out functionality.