Recently Von Duprin has discontinued the PS873 power supply and the add-on boards associated with that power supply. Command Access has developed a replacement board manufactured with similar characteristics to PS871-2 board. The new VD2 board mounts to the PS873 in the same fashion as the factory original PS871-2 board.Features: Solid-State Design (2) I/Os w/ Priority Sensing Euro Style Connectors No hassle 3-Year Warranty
