National Instruments 777754-01 PXI Relay Module

The part number 777754-01 from National Instruments is the identifying part number for the PXI-2565 PXI Relay Module. This module features  16-channel Single-Pole Single-Throw (SPST) topology designed for applications requiring high channel counts and reliability. Each relay can handle a maximum switching voltage of 125 V DC, 250 V AC with a maximum switching current of 7 A AC or 5 A DC per channel, making it suitable for a wide range of signal-switching applications.

The 777754-01 PXI Relay Module has a relay operating time of 5 millisecond typical and 10 millisecond maximum allowing for fast switching operations. The relays have an expected mechanical life of 5 × 10^7 cycles and an electrical life ranging from 1 × 10^5 cycles at maximum load, ensuring long-term reliability. The module supports input triggers from PXI trigger lines <0...7> with a minimum pulse width of 70 ns. Output triggers are programmable with pulse widths ranging from 1 µs to 62 µs, providing flexibility in timing and synchronization with other instruments.

This module is designed to fit into a two slot 3U PXI Express chassis. It has a 200-pin LFH connector for secure and reliable connections. The module dimensions are 21.6 × 4.1 × 13.0 cm (8.5 × 1.6 × 5.1 in.), and it weighs approximately 390 g. This module features electromechanical non-latching relays with Gold-flash over silver alloy contact material helping increase the life of the material and provide low contact resistance to ensure reliable connections.

This relay module is designed to operate at an ambient temperature of 0 to 50 degrees Celsius and a storage temperature of -20 to 70 degrees Celsius with a relative humidity of 5% to 85%, noncondensing. This model requires to be used in indoors only installed at an maximum altitude of 2000 meters and pollution degree of 2. This module is built to endure harsh conditions with an operating vibrations of 5 Hz to 500 Hz, 0.3 grms and operational Shock of 30 g peak, half-sine, 11 ms pulse (Tested in accordance with IEC 60068-2-27) standard.