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PCI eXtensions for Instrumentation (PXI) is a modular instrumentation platform originally introduced in 1997 by National Instruments.PXI is promoted by the 69-member PXI Systems Alliance (PXISA), whose sponsor members are (in alphabetical order) ADLINK, Cobham Wireless, Keysight Technologies, Marvin Test Solutions, National Instruments, Pickering Interfaces and Teradyne.
A high-level PXE overview. In computing, the Preboot eXecution Environment (PXE; often pronounced as / ˈ p ɪ k s iː / pixie, often called PXE boot (pixie boot), is a specification describing a standardized client–server environment that boots a software assembly, retrieved from a network, on PXE-enabled clients.
PXI is a peripheral bus specialized for data acquisition and real-time control systems. Introduced in 1997, PXI uses the CompactPCI 3U and 6U form factors and adds trigger lines, a local bus, and other functions suited for measurement applications. PXI hardware and software specifications are developed and maintained by the PXI Systems Alliance ...
PXI and PXIe Platforms, a modular instrumentation standard with more than 1,500 products [21] STS, a production-ready ATE solution for RF, mixed-signal, and MEMS [22] NI ELVIS, a multi-instrument lab station for teaching technology [23]
These are defined by PICMG 2.0R3 and PICMG Exp0 R1 respectively. Other computer architectures that utilize the Eurocard system are VME eXtensions for Instrumentation (VXI), PCI eXtensions for Instrumentation (PXI), and PXI Express. A computer architecture that used the 6U-220 Eurocard format was Multibus-II, which was IEEE 1296.
VCIbus hardware. VME eXtensions for instrumentation bus (VXI bus) refers to standards for automated test based upon VMEbus.VXI defines additional bus lines for timing and triggering as well as mechanical requirements and standard protocols for configuration, message-based communication, multi-chassis extension, and other features.
Differences are based on the trade-offs between flexibility and extensibility vs latency and overhead. For example, making the system hot-pluggable, as with Infiniband but not PCI Express, requires that software track network topology changes. [citation needed]
Related standards include CompactPCI Express and CompactPXI, which follow a similar concept, but substitute the protocols and signaling of PCI Express and PXI respectively. The abbreviations cPCI, CPCI, cPCIe, and CPCIe are colloquial terms and are not officially used by PICMG.