Technical standard for test instrumentation announced
AXIe combines ATCA, PCI Express, and LXI into one integrated test platform.
Martin Rowe -- Test & Measurement World, 11/11/2009 9:26:14 AM
A new alliance for another instrumentation bus standard, AXIe (AdvancedTCA Extensions for Instrumentation and Test) has been formed by Aeroflex, Agilent Technologies, and Test Evolution. The standard combines existing buses: ATCA, PCI Express, and LXI into one integrated test platform.
The figure shows how the instruments work together under the AXIe standard. An instrumentation chassis consisting of one to 14 cards uses Ethernet and/or PCIe on it's backplane for board communication. The AXIe 1.0 standard calls for both buses, but a chassis designer might choose one or the other or both. Instrument makers can design cards for either bus.
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ATCA cards, used in the
telecom industry, are larger than two 1U size PCIe or PXI cards. Adapter cards
will hold one or two PCIe/PXI cards, adapting them to either backplane bus. The
adapter cards will let you use your existing PCIe or PXI cards in the chassis.
An AXIe chassis will also have cabled LAN and PCIe ports. The LAN ports can connect the chassis to a host controller PC, which can also support external LAN-based instruments. Through an interface card, the host can also communicate with GPIB-based instruments. The cabled PCIe bus in an AXIe chassis connects to an external PCIe or PXI chassis or to the host controller.
The AXIe standard will let you use your existing instrument drivers, be they PXI, LXI, or IVI. The instrument bus should be transparent to your applications software.
AXIe Alliance, www.axiestandard.org.
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