National Instruments PXI-2503

48‐Channel, 1-, 2-, or 4-Wire, Electromechanical PXI Multiplexer Switch Module—The PXI‑2503 is a PXI switch module that you can configure as a multiplexer or matrix switch by using different terminal block accessories. It uses electromechanical relays with low thermal offset for accurate measurements and offers a 1,024‐step scan list for deterministic scanning.