How are switches used in automated test systems?

Switch modules route signals between instruments and devices or units under test (DUTs or UUTs), enabling flexible and efficient measurement setups. They allow engineers to share instruments across multiple test points, reduce hardware costs, and automate signal routing for high-throughput validation and production testing.

What features should engineers look for in a switch?

Key switch features include channel count, switching speed, bandwidth, and signal integrity. Engineers should also consider relay type (mechanical or solid state), maximum voltage and current ratings, impedance, and durability for high-cycle applications. For automated workflows, integration with PXI systems and software tools like NI Switch Executive is critical, along with scalability for high-density test configurations.

What NI switch types are available?

We offer a variety of switching topologies, including matrix, multiplexer, and general-purpose configurations, as well as RF and fault insertion options. These solutions enable engineers to design flexible signal routing architectures for applications ranging from simple point-to-point connections to complex multichannel systems. NI switches integrate with PXI platforms and software tools like NI Switch Executive for automated, scalable test setups.

What are the benefits of using NI switches in automated test and measurement?

NI switches provide high-density configurations, fast switching speeds, and reliable signal integrity for complex test environments. Their PXI modular architecture supports scalable systems, while NI software integration enables automated routing, sequencing, and monitoring. This reduces manual intervention and improves test efficiency.

Switches

Switches are hardware components used to route electrical signals between instruments and devices under test (DUTs). PXI switches are essential for automating connections, expanding measurement coverage, and increasing throughput without manual rewiring; they are critical for efficient, scalable automated test systems.

View switches

What Switch Is Right for You?

Shop by Form Factor

PXI

PXI Express

Explore Related Categories

PXI System Components

An NI Partner is a business entity independent from NI and has no agency or joint-venture relationship and does not form part of any business associations with NI.

Switches