PXI-2567

The PXI-2567 is a PXI Relay Module from National Instruments, designed for automated signal switching, test system expansion, signal routing, and modular PXI-based validation systems. As a 64-channel SPST PXI relay module, the NI PXI-2567 provides high-density switching capability for automated measurement and production test applications. NI lists the PXI-2567 with part number 778572-67.

The NI PXI-2567 is useful for engineers who need flexible signal routing between instruments, devices under test, and measurement systems. It can be used to connect DAQ modules, digital multimeters, source measure units, power supplies, oscilloscopes, and other PXI instruments within automated test platforms. Compared with manual cable switching, the PXI-2567 allows signal paths to be controlled through software, helping improve repeatability, reduce wiring errors, and simplify automated test sequences.

One of the main advantages of the PXI-2567 Relay Module is its high-density 64-channel SPST topology. SPST stands for single-pole single-throw, meaning each relay channel operates as an independent switch. This architecture is useful for general-purpose signal routing, fixture control, device enable/disable functions, load switching, and automated channel selection in large-scale test systems. The high channel count also helps engineers reduce slot usage inside PXI chassis.

The National Instruments PXI-2567 uses electromechanical relays, providing reliable switching performance for automated measurement applications. Electromechanical relay technology is commonly used in PXI switching systems because it offers good isolation, low insertion resistance, and support for a wide range of signal types. The module is suitable for low-frequency signal switching, control signal routing, and automated functional testing environments.

Technical specifications describe the NI PXI-2567 as supporting up to 300 V switching voltage, 2 A switching current, and 60 W switching power per channel. These specifications help engineers evaluate whether the module is suitable for their signal levels, switching requirements, and automated test configurations. The module also supports hot-swappable installation within compatible PXI chassis, simplifying maintenance and system expansion.

Another useful feature of the PXI-2567 is onboard relay count tracking. This functionality allows users to monitor relay usage and estimate relay lifetime, helping reduce unexpected downtime in automated production environments. Relay count tracking is especially important in systems where switching operations occur frequently over long operating periods.

In system integration, the PXI-2567 PXI Relay Module installs into a compatible PXI chassis and can be used with DAQ modules, digital multimeters, oscilloscopes, source measure units, programmable power supplies, function generators, and other PXI instruments. This allows engineers to build compact, software-controlled switching systems for laboratory automation, validation platforms, and production test systems.

The PXI-2567 is suitable for applications such as automated signal routing, functional testing, fixture switching, channel expansion, device connection management, production testing, laboratory automation, and modular PXI measurement systems. Its 64-channel SPST architecture is especially useful when a system requires many independent switching paths within a single PXI slot.

Overall, the NI PXI-2567 PXI Relay Module is a flexible high-density switching solution for PXI automated test systems. With its 64-channel SPST topology, electromechanical relay architecture, software-controlled switching, relay count tracking, and PXI platform compatibility, the PXI-2567 is well suited for signal routing, automated validation, production testing, and modular PXI measurement applications.