PXIe-2542

The PXIe-2542 is a PXI RF Relay Module from National Instruments, designed for RF signal routing, production RF testing, signal path selection, automated validation, and modular PXI Express test systems. As a 6.6 GHz, 50 Ω, solid-state, quad 2×1 PXI RF relay module, the NI PXIe-2542 provides four independent terminated 2×1 RF switching banks in one PXIe module. NI lists the PXIe-2542 with part number 780587-42.

The NI PXIe-2542 is useful for engineers who need fast and repeatable RF path switching in automated test systems. It can be used to route RF signals between signal generators, analyzers, receivers, filters, amplifiers, antennas, RF components, and devices under test. Compared with manual RF switching, the PXIe-2542 allows RF paths to be controlled through software, making it suitable for repeatable test sequences, laboratory automation, and production RF testing.

One of the main advantages of the PXIe-2542 RF Relay Module is its solid-state relay architecture. Unlike electromechanical RF relays, solid-state relays provide fast switching speed and no mechanical wear, which is useful for high-volume production environments where switching operations occur frequently. NI describes the PXIe-2542 as using high-performance solid-state relays with benefits such as unlimited mechanical lifetime and fast switching time.

The National Instruments PXIe-2542 supports 50 Ω RF signal routing up to 6.6 GHz. This frequency range makes it suitable for RF and wireless test applications such as RF front-end testing, communication device validation, receiver testing, amplifier testing, filter validation, antenna path switching, and automated RF signal routing. Its front-mounted SMA connectors allow users to connect RF devices directly and simplify system cabling.

The PXIe-2542 uses a terminated quad 2×1 topology, which means each switching bank can route a common RF path between two selectable channels while maintaining termination. The module includes termination on every COM line and channel, helping minimize RF reflections and protect connected instruments. This makes the PXIe-2542 useful for RF systems where signal integrity, reflection control, and source protection are important.

Technical specifications show that the NI PXIe-2542 provides strong RF performance up to 6.6 GHz, including channel-to-common isolation above 55 dB up to 6.6 GHz, channel-to-channel isolation above 54 dB up to 6.6 GHz, typical channel-to-channel skew below 3 ps, and typical propagation delay of 680 ps. These specifications help engineers evaluate the module for timing-sensitive RF switching and automated test applications.

In system integration, the PXIe-2542 PXI RF Relay Module installs into a compatible PXI Express chassis and can be used with RF signal generators, spectrum analyzers, vector signal transceivers, digitizers, source measure units, data acquisition modules, and other PXI/PXIe instruments. This allows engineers to build compact, software-controlled RF switching systems for production validation, wireless testing, and modular measurement platforms.

The PXIe-2542 is suitable for applications such as RF signal routing, wireless device testing, RF path selection, receiver testing, amplifier testing, filter validation, production RF test, and automated measurement systems. Its solid-state, terminated quad 2×1 architecture is especially useful when a system requires fast switching, long relay life, and controlled RF terminations.

Overall, the NI PXIe-2542 PXI RF Relay Module is a fast and reliable RF switching solution for PXI Express automated test systems. With its 6.6 GHz bandwidth, 50 Ω impedance, solid-state quad 2×1 topology, terminated RF paths, SMA connectivity, fast switching behavior, and software-controlled operation, the PXIe-2542 is well suited for RF signal routing, wireless validation, production testing, and modular PXI Express test applications.