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Boost switching systems with PXI/LXI devices

Posted: 02 Jul 2007 ?? ?Print Version ?Bookmark and Share

Keywords:LXI standard? switching systems? signal management? PXI standard?

Signal managementusing switching systems to route instrumentation and stimuli to the appropriate test pointhas a crucial role to play in most electronics tests. The sharing of resources, connection of calibration references, load management and other functions are all controlled by signal management.

The PXI standard, despite doubts expressed by some, has proven to be a good basis for switching products. Although the PXI form factor is small, the development costs are low once the initial entry barriers have been crossed, and speed of development is high. These enable a large variety of standard and custom switching solutions as adoption of the PXI standard has increased.

The PXI standard is mature and has been widely adopted in the test industry. It offers very fast communication interfaces for applications requiring the exchange of large blocks of data needed for analysis by the system controller, but it also imposes mechanical and power restrictions on the modules.

Not all users want their instrumentation or switching products to be extensions of their PC's PCI bus, or for the data analysis to be performed in the PC rather than the instrument. Although it has been hugely successful, PXI has not displaced the majority of rack or bench instruments.

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