The National Instruments 778572-76 is a PXI Multiplexer Switch Module, specifically designated as the PXI-2576. This module features 16 banks of 4x1 2-wire multiplexers, providing a versatile architecture that supports multiple topologies for parallel measurement applications requiring fewer channels. Users have the option to combine all multiplexer banks to create a unified multiplexer with up to 64 2-wire channels. The module includes relay counting capabilities, which monitor relay activations to enhance test accuracy and allow for automatic retrieval of activation counts for predictive maintenance, thereby reducing unexpected downtime. The relays in the 778572-76 are single-side stable, returning to their de-energized state upon power removal, effectively disconnecting channel signals. Designed for Measurement Category I, this module handles signal voltages up to 100 V and withstands impulse voltages of 500 V, making it unsuitable for Categories II, III, or IV. The electromechanical latching relays ensure reliable switching, with silver contacts coated in gold for enhanced conductivity and longevity. Connectivity is facilitated through an LFH matrix I/O connector, available in 50 or 160 positions. The 778572-76 module operates at a power consumption of 2.5 watts at 3.3 volts and 10 watts at 5 volts, making it ideal for various applications that demand both performance and efficiency. All measurement hardware comes calibrated for accuracy and offers options for basic or detailed recalibration services, ensuring ongoing compliance with ISO 9001 standards.