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National Instruments 780587-69 PXI Relay Module

The part number 780587-69 from National Instruments is the identifying part number for the PXIe-2569 PXI Relay Module. The module is a high-density, single-pole single-throw (SPST) latching relay switch module. The 780587-69 features 100 independent SPST latching relays where each relay can handle a maximum switching voltage of 100 Volts and a maximum switching power of 60 Watts or 62.5 VA.

The module is rated for Measurement Category I, intended to carry signal voltages no greater than 100 Vrms, 150 Vpk, or 150 Volts DC. This module can withstand up to 800 Volts of impulse voltage. The maximum current for switching or carrying per channel is 1 Amperes and its load derating is dependent on the ambient temperature and the current carried by each channel. It is designed to operate efficiently within an ambient temperature range of 0 degrees Celsius to 55 degrees Celsius, with load capabilities adjusted accordingly to maintain performance.

The 780587-69 PXI Relay Module has a relay operating time of 1 millisecond typically and a maximum operating time of 3.4 milliseconds, allowing for fast switching operations. The relays have an expected mechanical life of 1 × 10^8 cycles and an electrical life ranging from 2.5 × 10^6 cycles at 10 Volts DC, 100 mA to 1 × 10^5 cycles at 60 Volts DC, and a current rating of 1 Ampere allowing the module to operate for maximum operation cycles before performing maintenance operation or replacing the module completely. The module supports input triggers from PXI trigger lines 0 through 7 with a minimum pulse width of 150 ns to detect it as a trigger pulse. The output triggers are programmable with pulse widths ranging from 1 µs to 62 µs allowing it to synchronize with other compatible modules. 

The 780587-69 is designed to fit into a single-slot 3U PXI Express chassis. It has a 200-pin LFH connector for secure and reliable connections. The module dimensions are 21.6 cm × 2.0 cm × 13.0 cm (8.5 in. × 0.8 in. × 5.1 in.), and it weighs approximately 289 grams (10.2 ounces) making it compact and lightweight.