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Backplane Overview
3.7 System Reference Clock
The PXIS-2700 supplies the PXI 10MHz system clock signal (PXI_CLK10)
independently to every peripheral slot. An independent buffer (having a
source impedance matched to the backplane and a skew of less than 1ns
between slots) drives the clock signal to each peripheral slot. Users can
use this common reference clock signal to synchronize multiple modules
in a measurement or control system or drive PXI_CLK10 from an external
source through the PXI_CLK10_IN pin on the P2 connector of the star
trigger slot.
Select the internal or external clock by setting the jumper JP1 in the back
of the backplane.
JP1: 10MHz Reference Clock
Pin #
Name
1-2
(default)
Internal 10MHz
system clock
PXI_CLK10
2-3
External clock through
the PXI_CLK10_IN on
star trigger slot
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Summary of Contents for PXIS-2700
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