• Core Function: Serves as the main system controller for PXI Express chassis, providing processing power and operating system platform for automated test systems.
PXIe-8105: Product OverviewThe National Instruments PXIe-8105 is an embedded controller module designed for PXI Express systems, functioning as the central processing unit that operates the entire chassis. This controller installs in the first slot of a PXI Express chassis and provides the computational resources, operating system platform, and system management capabilities required for running automated test, measurement, and control applications. The module is based on Intel Core 2 Duo processor technology and serves as a standalone computing platform that eliminates the need for an external PC to operate the PXI system.Installed in the system slot (slot 1) of a compatible PXI Express chassis, the controller operates the backplane and communicates with all peripheral modules in the system. It runs a standard Windows operating system, allowing execution of test executive software, data analysis routines, and instrument control applications directly within the chassis. The integrated hard drive provides storage for the operating system, application software, and acquired data, while the RAM supports real-time processing of measurement data. The x4 PCI Express link to the backplane ensures high-bandwidth communication with peripheral modules, enabling rapid data transfer for high-speed acquisition and generation applications.
• Operating Systems: Windows XP, Windows Vista, LabVIEW Real-Time
NI PXIe-8105
Core Features & Customer ValueIntegrated System Architecture: The embedded design consolidates the computing platform within the PXI chassis, reducing system footprint and cable connections compared to external PC-controlled systems. This integration improves system reliability by eliminating external computer-chassis communication cables that can be susceptible to disconnection or interference. For test system integrators, this means a more compact and robust solution suitable for rack-mounted or benchtop installations where space optimization is important.Standard Computing Interface: The controller provides familiar PC interfaces including Ethernet, USB, and serial ports, enabling connection to network resources, external peripherals, and legacy equipment. The Gigabit Ethernet interface supports network communication for remote control, data transfer, and system monitoring. The availability of standard Windows operating systems allows installation of third-party software tools and custom applications without specialized development environments, reducing software adaptation costs.High-Speed Data Transfer Capability: The x4 PCI Express link to the backplane provides sufficient bandwidth for demanding data acquisition applications, supporting aggregate transfer rates up to 800 MB/s. This enables real-time processing of data from multiple high-speed acquisition modules without bottlenecks. The architecture supports DMA transfers, reducing processor overhead during high-speed data movement between peripheral modules and system memory.Typical ApplicationsIn automated production test systems, the controller runs test executive software that sequences through validation procedures for electronic assemblies, collecting measurement data from various instrument modules and making pass/fail determinations.For structural test data acquisition, the module processes real-time data from strain, vibration, and displacement sensors during product validation testing, performing on-the-fly analysis and storing results to the local hard drive.In military/aerospace component testing, the controller operates in environmental chambers where the integrated design withstands vibration and temperature extremes better than external computer solutions.
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