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National Instruments 782383-01 PXI Matrix Switch Module

The 782383-01 is the identifying part number for the PXIe‑2532B, a high-density PXI matrix switch module from National Instruments designed to enhance high-channel-count automated test systems. This module is suitable for fast testing situations since it makes use of small reed relays, which have switching speeds of up to 2,000 cycles per second. Through a variety of terminal block accessories, the 782383-01 can be configured into over ten distinct matrix topologies, offering flexible alternatives to meet a range of testing requirements.

This PXI matrix switch module can manage a maximum current of 0.5 A per channel, whether switching or carrying current, and supports a maximum switching voltage of 100 V both channel-to-channel and channel-to-ground. With the ability to handle up to 10 W of power, each channel is appropriate for a variety of uses. Low initial resistance is ensured by the initial DC path resistance of less than 1 Ω, and the end-of-life resistance is assured to be at least 2 Ω. Excellent isolation is ensured by the open channel resistance being more than 1 × 10^9 Ω.

In terms of precision, the thermal electromotive force (EMF) is less than 50 µV for a 1-wire configuration and less than 20 µV for a 2-wire configuration, which contributes to the accuracy of measurements and tests. With its onboard relay counting capability, the 782383-01ensures deterministic operation and allows relay monitoring. It also supports hardware triggers, with a minimum pulse width of 150 ns and input triggers sourced via PXI trigger lines <0...7>, to increase test throughput. PXI trigger lines <0...7> are the target of output triggers, which have a software-selectable pulse width of between 1 and 62 µs.

The 782383-01's physical components are rhodium reed relays, which are renowned for their dependability and longevity. Two 150-position Samtec ERM8-EM series I/O connectors are included with it. The module may be stored between -20 and 70 degrees Celsius and works between 0 and 55 degrees Celsius. It is rated for Pollution Degree 2 conditions, and may only be used indoors. It supports relative humidity levels ranging from 5% to 85% non-condensing.