Configures the NI-RFSG device Reference Clock. The Reference Clock ensures that the NI-RFSG devices are operating from a common timebase. The NI-RFSG device must be in the Configuration state before you call this VI.

Supported Devices: PXIe-5644/5645/5646, PXI/PXIe-5650/5651/5652, PXIe-5653/5654/5654 with PXIe-5696, PXI-5670/5671, PXIe-5672/5673/5673E, PXIe-5820/5830/5831/5832/5840/5841/5842/5860

Related Topics

PXIe-5672 Timing Configurations

PXIe-5673 Timing Configurations

PXIe-5673E Timing Configurations

PXIe-5830 Timing Configurations

PXIe-5831/5832 Timing Configurations


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Inputs/Outputs

  • civrn.png instrument handle —

    instrument handle identifies your instrument session. instrument handle is obtained from either the niRFSG Initialize VI or the niRFSG Initialize With Options VI.

  • cstr.png ref clock source —

    ref clock source specifies the source of the Reference Clock signal.

    Onboard Clock (default)

    Uses the onboard Reference Clock as the clock source.

    PXIe-5830/5831/5832—For the PXIe-5830, connect the PXIe-5820 REF IN connector to the PXIe-3621 REF OUT connector. For the PXIe-5831, connect the PXIe-5820 REF IN connector to the PXIe-3622 REF OUT connector. For the 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-5841 with PXIe-5655—Lock to the PXIe-5655 onboard clock. Connect the REF OUT connector on the PXIe-5655 to the PXIe-5841 REF IN connector.

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

    RefIn

    Uses the clock signal present at the front panel REF IN connector as the clock source.

    PXIe-5830/5831/5832—For the PXIe-5830, connect the PXIe-5820 REF IN connector to the PXIe- 3621 REF OUT connector. For the PXIe-5831, connect the PXIe-5820 REF IN connector to the PXIe-3622 REF OUT connector. For the PXIe-5832, connect the PXIe-5820 REF IN connector to the PXIe-3623 REF OUT connector. For the PXIe-5830, lock the external signal to the PXIe-3621 REF IN connector. For the PXIe-5831, lock the external signal to the PXIe-3622 REF IN connector. For the 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-5841 with PXIe-5655—Lock to the signal at the REF IN connector on the associated PXIe-5655. Connect the PXIe-5655 REF OUT connector to the PXIe-5841 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.

    PXI Clock Uses the PXI_CLK signal, which is present on the PXI backplane, as the clock source.
    PXI_ClkMaster

    This value is valid on only the PXIe-5831 with PXIe-5653 and the PXIe-5832 with PXIe-5653.

    PXIe-5831 with PXIe-5653—NI-RFSG 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. Connect the PXIe-5653 REF OUT (10 MHz) connector to the PXI chassis REF IN connector.

    PXIe-5832 with PXIe-5653—NI-RFSG 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. Connect the PXIe-5653 REF OUT (10 MHz) connector to the PXI chassis REF IN connector.

  • cdbl.png ref clock rate (Hz) —

    ref clock rate specifies the Reference Clock rate, in hertz (Hz), of the signal present at the REF IN or CLK IN connector. This parameter is only valid when the ref clock source parameter is set to RefIn. The default value is Auto (-1.0), which allows NI-RFSG to use the default Reference Clock rate for the device or automatically detect the Reference Clock rate, if supported. Refer to the Reference Clock Rate property for possible values.

  • cerrcodeclst.png error in —

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

  • iivrn.png instrument handle out —

    instrument handle out passes a reference to your instrument session to the next VI. instrument handle out is obtained from the niRFSG Initialize VI or the niRFSG Initialize With Options VI.

  • ierrcodeclst.png error out —

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