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VME and VXI bus interfaces and adapters allow VME buses and VXI buses to communicate with other types of computer systems and devices. Buses are data connections between computers and internal or external devices. Bus interfaces and adapters connect peripherals to computers that do not provide native support for a peripheral’s interface. The VersaModule Eurocard (VME) bus is a popular, 32-bit bus used in many industrial, commercial and military applications. It is based on the VME standard, which defines mechanical specifications such as board dimensions, connector specifications, and enclosure characteristics, as well as the electronic specifications for sub-bus structures, signal functions, timing, signal voltage levels, and master/slave configurations. VME extensions for instrumentation (VXI) is an electrical and mechanical standard used mainly with automatic test equipment (ATE). VXI allows equipment from different vendors to work together in a common control and packaging environment.

Selecting VME and VXI bus interfaces and adapters requires an analysis of available technologies. The original VME bus (VMEbus) uses Eurocards, rugged circuit boards that provide a 96-pin plug instead of an edge connector for durability. VME64 is an expanded version of the VMEbus that provides 64-bit data transfers and addressing. VME64 is a mechanical and electrical superset of the original VME specification, IEEE 1014 1987, from the Institute of Electrical and Electronics Engineers (IEEE). VME64 features include asynchronous data transfers, an addressing range between 16 and 40 bits, data path widths between 8 and 64 bits, and a bandwidth of 80 Mbps. VME64 extended (VME64x) is an improved version of the original VMEbus that features a 160-pin connector family, 3.3 V power supply pins, bandwidths up to 160 Mbps, injector/ejector locking handles, and hot swap capability. VME160 transfers data at 160 Mbps. VME320 transfers data at a rate of 320 Mbps. VXI combines VMEbus specifications with features from the general-purpose interface bus (GPIB) to meet the needs of instrumentation applications.

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Products & Services Related to VME and VXI Bus Interfaces and Adapters
VME and VXI Controllers and Processors
VME and VXI controllers and processors are special computers that control data transfers between devices in VME and VXI networks. They also control the status of interrupts, interrupt requests (IRQs), registers, and triggers as well as network instruments for testing and analysis.
VME and VXI Products
VME and VXI products is a general search form that covers peripherals for the VersaModle Eurocard (VME) bus and VME extensions for instrumentation (VXI),  an electrical and mechanical standard used mainly with automatic test equipment (ATE). VME and VXI products include switches, extenders, controllers, processors, and interface adapters. More detailed search forms are available for individual areas.
VME Extenders and VXI Extenders
VME extenders and VXI extenders are boards used to improve or extend the functions of the standard VME / VXI system.
VME Switches and VXI Switches
VME switches and VXI switches are used in industrial systems to connect test points, or devices, to instruments for the purpose of testing, measuring or monitoring the system.

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Engineering Web: VME and VXI Bus Interfaces and Adapters
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? Embedded Systems ? IEEE-1394 ? Hardware SedNetTM 1394b...
Features - Single-slot 6U VME board, fully compliant with the ANSI/VITA 1-1994 specification, with embedded 1394 adapters - Scalable from two to six
See Mindready Solutions Information
Computer and Embedded Interface Bus List
Not all bus types are Individually listed here; Some links including the Automotive buses, Vehicle buses, Avionics buses, Field buses, Mezzanine
VXI-DIO-128 User Manual
Internet Support GPIB: gpib.support@natinst.com DAQ: daq.support@natinst.com VXI: vxi.support@natinst.com LabVIEW: lv.support@natinst.com LabWindows:
See National Instruments Profile & Catalog
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