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PXI-based modules boost data acquisition

Posted: 09 Dec 2011     Print Version  Bookmark and Share

Keywords:PXI  remote control module  PXI Express chassis 

National Instruments debuts the NI PXIe-8364 and NI PXIe-8374, two system expansion options for creating multi-chassis PXI Express systems that allow the direct interface of multiple PXI Express chassis to a single host computer using any expansion topology, without requiring complex custom solutions.

The modules' simplified interconnectivity and industry-standard PXI-based architecture are said to boost system design efficiency and overall system performance in a variety of high-channel-count data acquisition and high-speed automated test applications including RF and semiconductor test.

The NI PXIe-8364/74 modules use x1 and x4 MXI-Express links, respectively, to connect downstream and upstream PXI Express chassis, and all PXI modules in the downstream chassis appear as local devices in the upstream chassis. Because MXI-Express links are software transparent, no interconnections require programming, and greatly simplifies multi-chassis system setup, says NI.

Additionally, the modules use cabled PCI Express as their underlying communication technology, which offers extremely high bandwidth and low latency. The NI PXIe-8364/74 modules provide a maximum data bandwidth of 250MB/s and 1GB/s, respectively. Engineers can use the new modules to create systems with multiple PXI Express chassis connected in complex topologies such as star, line or tree. According to NI, ideal combinations connect the new NI PXIe-8364/74 modules in upstream chassis with NI PXIe-8360/70 controllers in downstream chassis.

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