{"product_id":"von-duprin-ps904-2rs-fa-access-power-supply-2-relay","title":"Von Duprin PS904-2RS-FA Access Power Supply 2 Relay","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VON DUPRIN PS904-2RS-FA is an access control power supply unit featuring two relay board outputs and an integrated fire alarm interface. Designed for use in commercial access control and door security systems, this power supply provides reliable, code-compliant power distribution to electrified door hardware such as electric strikes, magnetic locks, and access control panels. The fire alarm interface allows the unit to respond to fire alarm signals, enabling automatic door release or lock-down sequences depending on system configuration. Licensed security and low-voltage installers are the primary trade professionals who specify and install this unit.\u003c\/p\u003e\n\u003cp\u003eThis power supply is suited for commercial and institutional installations where access control hardware must integrate with a building fire alarm system. Typical applications include office buildings, schools, healthcare facilities, and multi-tenant properties where electrified door hardware requires a dedicated, regulated power source with relay switching capability. The two relay board outputs allow independent control of multiple door hardware circuits from a single supply unit.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo relay board outputs for independent circuit control of electrified door hardware\u003c\/li\u003e\n  \u003cli\u003eIntegrated fire alarm interface for automatic door hardware response during alarm events\u003c\/li\u003e\n  \u003cli\u003eDesigned for commercial access control system integration\u003c\/li\u003e\n  \u003cli\u003eSupports code-compliant installation where fire alarm interfacing is required\u003c\/li\u003e\n  \u003cli\u003eSold as a single unit (each)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style power supply for commercial access control systems requiring relay board output switching and fire alarm interface capability.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed low-voltage or security systems technician familiar with access control and fire alarm integration requirements. Disconnect and de-energize all connected circuits before servicing or wiring the unit. Consult local building codes and NFPA 72 guidelines when integrating with fire alarm systems to ensure compliant installation. Verify that the power supply output ratings are compatible with all connected door hardware loads before energizing the system.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory\u003c\/strong\u003e: Access Power Supplies\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelay Board Outputs\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFire Alarm Interface\u003c\/strong\u003e: Included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity Per Package\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VON DUPRIN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: PS904-2RS-FA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VON DUPRIN","offers":[{"title":"Default Title","offer_id":51686693241138,"sku":"PS904-2RS-FA","price":1943.62,"currency_code":"USD","in_stock":true}],"url":"https:\/\/voomisupply.com\/products\/von-duprin-ps904-2rs-fa-access-power-supply-2-relay","provider":"Voomi Supply","version":"1.0","type":"link"}