Chapter 3
Integration and System Considerations
©
National Instruments Corporation
3-3
NI PXIe-5450 User Manual
PXI/PXI Express Chassis Cooling
Not all PXI or PXI Express chassis provide the same cooling. When
selecting a PXI or PXI Express chassis, consideration should be given to
providing adequate airflow for high power and sensitive devices such as
NI signal generators.
NI PXI and PXI Express signal generators are high-precision instruments
and may be sensitive to interference from other electronic devices. To
optimize the accuracy and performance of the device, you may need to
locate the device in a slot away from devices with power supplies and other
noisy circuitry. The device may also be sensitive to heat generated by
high-power products in neighboring slots. When possible, consider
locating the device away from high-power devices to optimize cooling.
PXI Modules
PCI eXtensions for Instrumentation (PXI) modular instrumentation
delivers a PC-based, standardized, high-performance measurement and
automation system. PXI combines the high-speed PCI bus with integrated
timing and triggering designed specifically for measurement and
automation applications to deliver significant performance improvements
over older architectures. The following figure shows a typical PXI chassis
installation.
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7
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5
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3
2
1
ON
ST
AN
DB
Y
PXI Chassis
Your PXI Device
Ejector Handle in
Down Position
