{"product_id":"command-access-24vdc-power-supply-replacement-board-2a-dual-output","title":"Command Access 24VDC Power Supply Replacement Board | 2A Dual Output","description":"\u003cp\u003eThe \u003cstrong\u003eCommand Access Technologies PS2-BO Regulated Power Supply Board\u003c\/strong\u003e is a \u003cstrong\u003eboard-only replacement\u003c\/strong\u003e for compatible commercial electric latch-pullback and access-control systems. Designed as a replacement for the discontinued \u003cstrong\u003eVon Duprin PS873-2\u003c\/strong\u003e power-supply board, the PS2-BO provides \u003cstrong\u003eregulated 24VDC output rated at 2A\u003c\/strong\u003e, built-in boost circuitry, \u003cstrong\u003etwo independently triggered solid-state input\/output circuits\u003c\/strong\u003e and a fire-alarm disconnect link.\u003c\/p\u003e\u003ch3\u003eReplacement Board versus Complete Power Supply\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003ePS2-BO\u003c\/strong\u003e is a \u003cstrong\u003eboard-only\u003c\/strong\u003e replacement assembly designed for compatible \u003cstrong\u003eVon Duprin PS873-2\u003c\/strong\u003e power-supply applications. It is not a complete enclosed unit and does not include a battery charging circuit or backup battery system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetrofit verification:\u003c\/strong\u003e Compare the existing board, cabinet, supply wiring, connector\/terminal arrangement, power distribution and downstream control channels to the current Command Access replacement documentation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical rating:\u003c\/strong\u003e Confirm the regulated 24VDC\/2A output against the connected devices' continuous and inrush requirements. The two control channels share the rated source.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLife-safety controls:\u003c\/strong\u003e Recheck any required fire-alarm interface, door release sequence and applicable exit-device wiring before returning the system to service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQualified installation:\u003c\/strong\u003e Disconnect and secure the AC feed before board service and use the manufacturer’s wiring and mounting instructions; enclosure and field electrical work are separate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The \u003cstrong\u003ePS2-BO is a replacement power-supply board assembly, not a complete power supply in an enclosure.\u003c\/strong\u003e A metal enclosure and battery-backup charging circuitry are \u003cstrong\u003enot included\u003c\/strong\u003e. The battery-backup-equipped PS2BB-BO is a separate model and should not be substituted without verifying compatibility.\u003c\/p\u003e\n\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegulated 24VDC power:\u003c\/strong\u003e Supplies up to 2A total output for compatible electric latch-retraction exit devices and commercial electrified locking hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement for legacy hardware:\u003c\/strong\u003e Designed to replace the discontinued Von Duprin PS873-2 power supply board in a compatible installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo independent control channels:\u003c\/strong\u003e Two solid-state inputs and corresponding outputs support independent electric latch-pullback activation, subject to manufacturer wiring requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost circuitry:\u003c\/strong\u003e Provides additional momentary inrush current needed by compatible electric latch pullback systems; verify load and duty-cycle requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire-alarm interface:\u003c\/strong\u003e Integrated fire-alarm link for connection per the approved egress and life-safety design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid-state reliability:\u003c\/strong\u003e Intelligent short-circuit detection and isolation help protect compatible door-control circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal overload sensing:\u003c\/strong\u003e Supports protection during abnormal loading and overheating conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService-friendly connections:\u003c\/strong\u003e Removable Euro-style terminal blocks simplify field wiring and maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC input:\u003c\/strong\u003e Designed for compatible 110\/120VAC, 60Hz installations; wiring must follow the current factory instructions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoard-only design:\u003c\/strong\u003e Reuse or provide an appropriate protective enclosure and mounting arrangement in accordance with applicable electrical codes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eCommand Access Technologies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number \/ SKU\u003c\/th\u003e\n\u003ctd\u003ePS2-BO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eRegulated replacement power-supply board assembly, without enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDesigned Replacement For\u003c\/th\u003e\n\u003ctd\u003eDiscontinued Von Duprin PS873-2 power supply board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal AC Input\u003c\/th\u003e\n\u003ctd\u003e110\/120VAC, 60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal DC Output\u003c\/th\u003e\n\u003ctd\u003eRegulated 24VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput Capacity\u003c\/th\u003e\n\u003ctd\u003e2A total rated output at 24VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl Channels\u003c\/th\u003e\n\u003ctd\u003eTwo solid-state inputs and two outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTrigger Type\u003c\/th\u003e\n\u003ctd\u003eDry-contact triggering per manufacturer instructions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBoost Feature\u003c\/th\u003e\n\u003ctd\u003eBuilt-in inrush \/ latch-pullback boost circuitry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFire-Alarm Link\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProtection Features\u003c\/th\u003e\n\u003ctd\u003eThermal overload sensing and intelligent short-circuit detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eField Connections\u003c\/th\u003e\n\u003ctd\u003eRemovable Euro-style connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMetal Enclosure\u003c\/th\u003e\n\u003ctd\u003eNot included; board-only model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Charging \/ Backup\u003c\/th\u003e\n\u003ctd\u003eNot included; see PS2BB-BO for the battery-backup version\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShipping Weight\u003c\/th\u003e\n\u003ctd\u003e5 lb working estimate; verify actual packed weight before shipping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eTypical Commercial Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement of compatible discontinued Von Duprin PS873-2 power-supply boards\u003c\/li\u003e\n\u003cli\u003eElectric latch-retraction exit devices requiring regulated 24VDC power\u003c\/li\u003e\n\u003cli\u003eTwo independently triggered electrified exit-device circuits\u003c\/li\u003e\n\u003cli\u003eCommercial door repair, access-control maintenance and legacy power-supply retrofits\u003c\/li\u003e\n\u003cli\u003eInstitutional, commercial and industrial electrified door hardware installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIncluded and Not Included\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e One Command Access PS2-BO replacement power-supply board assembly. \u003cstrong\u003eNot included:\u003c\/strong\u003e Metal cabinet\/enclosure, backup batteries, battery charging circuit, exit devices, locks, field wiring, external control components or installation labor.\u003c\/p\u003e\n\u003ch3\u003eInstallation and Ordering Notes\u003c\/h3\u003e\n\u003cp\u003eConfirm the existing cabinet, electrical supply, terminal configuration, connected load, fire-alarm integration and wiring compatibility before ordering. This is the \u003cstrong\u003ePS2-BO board-only 24VDC\/2A\u003c\/strong\u003e unit, \u003cstrong\u003enot PS2BB-BO\u003c\/strong\u003e, a complete enclosed PS2 power supply or a generic relay board. Installation and mains wiring must be performed by qualified personnel following the current Command Access documentation and applicable electrical and egress codes.\u003c\/p\u003e","brand":"Command Access Technologies","offers":[{"title":"Default","offer_id":68030699339991,"sku":"PS2-BO","price":280.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/4933\/1927\/files\/ps2_bo__12867__15932.1588751048.jpg?v=1794340971","url":"https:\/\/shop.commercialdoorworx.com\/products\/command-access-24vdc-power-supply-replacement-board-2a-dual-output","provider":"Commercial Door Worx","version":"1.0","type":"link"}