Windows® NT CompactPCI and PXI Products

Description

Windows® NT CompactPCI and PXI products are high-performance industrial bus systems based on the PCI electrical specifications. CompactPCI is designed in the rugged Eurocard format, while PXI (PCI eXtensions for Instrumentation) extends CompactPCI for measurements and automation systems. These products are used to connect system devices and function as system controllers, providing a robust and sturdy solution for industrial applications.

Working Principle

CompactPCI and PXI products operate by utilizing a high-performance standard based on PCI technology. They connect to system devices through plug-in computer cards, which function as system controllers. PXI bus interfaces provide programming control and are typically used in high-speed applications. The form factors, such as 3U and 6U, are based on the VersaModule Eurocard (VME) format, allowing for integration with various network protocols and computer operating systems. These systems are useful because they support multiple PCI slots, which can be expanded using PCI-PCI bridges, offering a more robust solution compared to desktop PCI systems.

Applications

CompactPCI and PXI products are used in a variety of industrial applications. Specific examples include computer telephony, where they manage communication systems; industrial automation, where they control machinery and processes; real-time data acquisition, where they collect and process data from sensors; and military systems, where they provide reliable and rugged computing solutions.

Advantages over other CompactPCI and PXI Products

Compared to desktop PCI systems, CompactPCI supports more PCI slots, specifically up to 8, whereas desktop PCI supports only 4. This allows for greater expansion and integration capabilities. Additionally, CompactPCI and PXI products are more robust and sturdy, making them suitable for demanding industrial environments.

Limitations

One limitation of CompactPCI and PXI products is that they may not be suitable for systems where the total physical bus load is an issue, as they are designed for moderately sized systems. Additionally, while they offer robust solutions, the physical size and complexity of these systems may not be ideal for all applications.

Considerations

When considering CompactPCI and PXI products, it is important to evaluate initial costs, which can be higher due to the rugged design and industrial-grade components. Operating expenses may also be significant, depending on the specific application and environment. Durability is a key advantage, as these systems are designed to withstand harsh industrial conditions. However, accuracy and performance should be assessed based on the specific requirements of the application. Replacement and maintenance costs should also be considered, as these systems may require specialized components and expertise for servicing.