NI PXIe-2524 – PXI Express Switching Module for Reliable Automated Signal Routing

The NI PXIe-2524 is designed for building clean, repeatable signal paths inside a PXI Express test system. From my experience, this module fits well when you need dependable low‑frequency analog or digital routing—think multiplexing sensors to a DMM, steering stimulus lines to a UUT, or sharing instruments across multiple DUTs without touching a cable. One thing I appreciate is how naturally it slots into NI software workflows (NI-SWITCH/NI-DAQmx), so sequencing and scanning typically come together fast.

You might notice that teams upgrading older PXI racks use the PXIe-2524 to modernize switching without rearchitecting their entire test plan. A production customer recently told us, “Dropping the PXIe-2524 into our 8‑slot chassis cut fixture changeover time, because we could reroute all channels from software. No more manual patching.”

Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in‑stock; no more than one month at the latest
• Payment method: 50% advance payment; full payment before delivery
• Express delivery methods: FedEx, UPS, DHL

Key Features

• PXI Express integration – Runs on the PXIe backplane for deterministic triggering and tight sync with NI instruments (DMMs, SMUs, AWGs, etc.).
• General‑purpose signal routing – Suited for DC to low‑frequency analog/digital switching in automated test; typical use cases include sensor multiplexing and instrument sharing across multiple DUTs.
• High‑density front I/O – Uses a compact, high‑pin‑count connector so you can bring many lines to a single module and fan out to a terminal block or fixture.
• Software‑defined scans – Configure routes and scan lists in NI‑SWITCH or NI‑DAQmx; in many cases, existing sequences can be ported with minimal effort.
• Designed for system uptime – Relay-based architecture that typically favors long service life when cold‑switching; good practice for production lines cycling thousands of times.
• Compact 3U, 1‑slot footprint – Frees up chassis space and simplifies wiring in dense ATE builds.

Technical Specifications

Related or Supporting Products

• NI PXIe-2527 – Multiplexer switch module offering higher channel counts; good when you need more inputs to a single instrument.
• NI PXIe-2532B – High‑density matrix switch; choose this for flexible crosspoint routing between multiple sources and loads.
• NI PXI-2524 – PXI (non‑Express) variant for legacy PXI chassis where PXIe is not available.
• Cables & breakouts – NI SHC68‑68 shielded cable with a 68‑pin connector; SCB‑68A or equivalent connector blocks for clean field wiring.

Installation & Maintenance

• Environment – Use in a PXIe chassis with healthy airflow; keep vents clear and allow a few centimeters of space for cooling. Typical cabinet setups follow IEC enclosure practices with good cable management.
• Wiring – Use shielded 68‑pin cables to a terminal block or fixture. Keep lead lengths short to minimize crosstalk and resistance. For longest relay life, cold‑switch (open the circuit before making/breaking).
• Safety – De‑energize lines before re‑cabling. Add appropriate snubbers or flyback diodes when switching inductive loads to protect contacts.
• Routine checks – Run a self‑test in NI MAX periodically; review driver/firmware updates a few times per year; inspect and reseat front connectors if the system is moved; keep dust out of the connector area.

Quality & Certifications

• CE and RoHS compliant; designed and tested for EMC in PXI systems
• Manufactured under ISO 9001 quality systems
• Manufacturer’s standard warranty: typically 1 year; our coverage: 365 days as stated above

If you’re mapping out routes for a DMM, LCR meter, or stimulus source and need a compact PXIe switch that “just works,” the NI PXIe-2524 seems to be a balanced choice—especially when you want to keep future expansion in the same chassis.