ADLINK PXIS-2670 - Manual (Page 41)

33
JP3: PXI Bus Speed Control
JP2: PXI 10MHz Reference Clock Control
JP3 Pin 1-2 Description
Short (default) Short M66EN to ground to force PCI bus run 33MHz
Open PCI bus speed defined by M66EN on the PXI bus
JP2 Description
Pin 1-2 External clock through the PXI_CLK10_IN on star trigger slot
Pin 2-3
Internal 10MHz system clock PXI_CLK10