The National Instruments PXI-2527 (Part Number: 778572-27) is a sophisticated 300 V, 32-channel multiplexer switch module designed for a wide range of medium to high-density automated testing applications. Utilizing high-efficiency electromechanical relays, the PXI-2527 complements PXI digital multimeter (DMM) modules, delivering seamless channel expansion for diverse measurement tasks. This versatile switch module supports various channel configurations, including 1-wire 64 × 1, dual 32 × 1, 2-wire 32 × 1, and 4-wire 16 × 1 arrangements. For enhanced performance, it features onboard relay counting, ensuring deterministic operation and effective relay monitoring via hardware triggers. Rated for Measurement Category I, the PXI-2527 can accommodate signal voltages up to 300 V and withstand impulse voltages of up to 1500 V, while delivering a maximum switching power of 60 W or 62.5 VA per channel. The module exhibits impressive isolation performance with greater than 80 dB, 60 dB, and 40 dB attenuation across 10 kHz, 10 kHz, and 1 MHz frequency bands, respectively, and offers a maximum switch bandwidth of 30 MHz.

The PXI-2527 is equipped with a male 100-position HDI right-angle I/O connector and features field-replaceable latching electromechanical relays with a typical operation time of 1 ms. These relays are rated for 10^8 cycles, utilizing gold-covered palladium-ruthenium as contact material, enabling reliable long-term operation. To facilitate accurate thermocouple measurements, the PXI-2527 can be used in conjunction with the NI TB-2627, supported by NI software that converts thermocouple voltage data to temperature readings. This module has a compact form factor, measuring 8.5 x 0.8 x 5.1 inches and weighing just 7.4 ounces. Its operating temperature range is from 0 °C to 55 °C, with a storage temperature range of –20 °C to 70 °C, and power requirements of 6 W at 5 V and 2.5 W at 3.3 V. Furthermore, the PXI-2527 is rated for operating random vibration of 5 to 500 Hz at 0.3 grms and for non-operating conditions at 5 to 500 Hz at 2.4 grms. The product is covered by a three-year warranty, and detailed user manuals are available for download. For pricing details, please contact a sales representative.