Interface Cards - PXI

PXI interface cards for scalable, modular test systems

Powerful foundation for automated test stands

PXI and PXIe interface cards form the core of modern, modular test systems. They combine bus technology, trigger and timing infrastructure in a compact chassis and enable automated measurement and test applications with high channel density and minimal space requirements.

With PXI interface cards from LXinstruments, you configure scalable systems for development, quality assurance and series production – from laboratory setups to end-of-line test stands.

Benefits in development, quality assurance and production

PXI interface cards are particularly suitable for:

• Functional tests and end-of-line test stands
• Electronics, assembly and semiconductor testing
• Safety-related tests and endurance tests

The central trigger and clock synchronisation ensures reproducible test sequences, reduces cabling effort and supports high throughput in production.

Functions & module diversity

In the category “Interface cards – PXI” you will find, among others:

• Controller cards and PXI/PXIe chassis as system platforms
• Digital I/O and pattern generator cards
• Relay, matrix and switching cards for flexible signal routing
• Safety and high-voltage switching modules
• Bus and expansion cards for connecting external computers and instruments

This allows you to combine exactly the functions your application requires – modular, expandable and standardised.

Advantages of PXI interface cards from LXinstruments

• Scalable architecture: Systems grow with your product portfolio.
• Open standard: Compatible modules from different manufacturers.
• Efficiency: Less cabling, shorter setup times, structured design.
• System integration: Combination with LXI instruments and modular test platforms.
• Support: Consulting and support from experienced test engineers.

FAQ about PXI interface cards

What is a PXI interface card?

A PXI interface card is a plug-in module for PXI or PXIe chassis that provides measurement, switching, control or bus functions and connects signals, devices under test or external instruments directly to the test system.

How does PXI differ from benchtop instruments?

PXI combines many functions in a common chassis with a unified power supply, trigger and clock signals. This reduces space requirements and cabling and simplifies synchronisation compared to individual, loosely coupled benchtop instruments.

What is the difference between PXI and PXI Express (PXIe)?

PXI is based on the parallel PCI bus, while PXIe (PXI Express) is based on the faster serial PCI Express technology. As a result, PXIe offers a significantly higher data transfer rate and is particularly suitable for demanding measurement and high-speed applications.
PXIe chassis also provide extended timing and synchronisation signals. PXI modules can continue to be used in many PXIe chassis with so-called hybrid slots.

For which applications are PXI cards suitable?

Typical fields of application include automated functional tests, end-of-line test stands, electronics and semiconductor testing, safety-related tests as well as RF and power tests in development and production.

What do MXI and MXI-Express (MXIe) stand for in PXI/PXIe interface cards?

MXI and MXIe are host interfaces that link an external PC directly to a PXI or PXIe chassis. From the PC’s perspective, the chassis acts as a remote PCI or PCIe expansion, so all modules are enumerated in the operating system like locally installed cards.
The technology is used when no embedded controller is installed or when multiple PXI chassis need to be daisy-chained, and it is specifically designed for PXI/PXIe Systems.

Can I integrate existing measuring instruments?

Yes. Using interface cards and bus adapters, you can integrate existing instruments with GPIB, USB or serial interfaces into the PXI system and combine proven instruments with a modern test platform.

How does LXinstruments support me?

LXinstruments supports you from requirements analysis through module selection to the commissioning of complete test systems – including concept, integration, training and expansion of existing installations.

Deploy PXI interface cards in a targeted way now

You are planning a new test system or want to modernise an existing test setup? With PXI interface cards from the LXinstruments portfolio, you configure a powerful, future-proof platform for your measurement and test tasks. Controllers, chassis, switching, I/O and safety modules combine to form a solution that fits your products, standards and processes exactly.

Together with the experts at LXinstruments, you define the optimal system architecture, specify trigger and synchronisation concepts and integrate existing measuring instruments in a targeted way.

Contact LXinstruments now and get non-binding advice – for a PXI solution that makes your test processes more efficient, safer and more transparent.