The basic building block of a VXI system is the mainframe or chassis. This contains up to 13 slots into which various modules (instruments) can be added. The mainframe also contains all the power supply requirements for the rack and the instruments it contains. Instruments in the form of VXI Modules then fit the slots in the rack. VXI bus modules are typically 6U in height (see Eurocard) and C-size (unlike VME bus modules which are more commonly B-size). It is therefore possible to configure a system to meet a particular requirement by selecting the required instruments.
The VXIbus grew from the VME bus specification, it was established in 1987 by Hewlett Packard (now Agilent Technologies), Racal Instruments (now EADS North America Test and Services), Colorado Data Systems, Wavetek and Tektronix. VXI is promoted by the VXIbus Consortium, whose sponsor members are currently (in alphabetical order) Agilent Technologies, Bustec, EADS North America Test and Services (formerly Racal Instruments), National Instruments, Teradyne, and VXI Technology. ZTEC Instruments is a participating Executive Member. VXI's core market is in Military and Avionics Automatic Test Systems.
The VXIplug&play Alliance specified additional hardware and software interoperability standards, notably the Virtual Instrument Software Architecture or VISA, although the alliance was eventually merged with the IVI Foundation Application software that supports VXIplug&play instrument drivers for controlling instruments include LabVIEW and MATLAB. There is a VXIbus Consortium of industry leaders, which can be found at http://www.vxibus.org/
VXI is for more products than you think. (Tektronix Inc. uses VXI technology) (includes related article on simple rules for keeping designs focused) (Design it Right: Part 3)
Oct 29, 1992; John Hengeveld managed the digital design of the 9DG1 and 9DG2 630-MHz data time generator modules for Tektronix's HFS 9000...
VXI Bus enhancement accommodates physical instruments and multiple mainframes. (MXIbus, from National Instruments Corp.) (Product Update) (Multisystem eXtension Interface bus)
Apr 13, 1989; vxi Bus enhancement accommodates physical instruments and multiple mainframes The MXIbus (pronounced MIX-ee-bus) is an...