{"product_id":"silent-knight-6820evsbd","title":"Silent Knight 6820EVSBD Replacement Part","description":"\u003cp\u003eSilent Knight 6820EVSBD Emergency Voice System Replacement Board.\u003c\/p\u003e\n\u003ch3\u003eCompliance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUL Listed\u003c\/li\u003e\n\u003cli\u003eUL 864\u003c\/li\u003e\n\u003cli\u003eUL 2572\u003c\/li\u003e\n\u003cli\u003eNFPA 72\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReplacement printed circuit board for the Silent Knight 6820EVS combined FACP\/EVS panel\u003c\/li\u003e\n\u003cli\u003eRestores fire alarm and emergency voice system control functions to original specification\u003c\/li\u003e\n\u003cli\u003eUL 864 listed for fire alarm and UL 2572 listed for emergency communications applications\u003c\/li\u003e\n\u003cli\u003eDesigned for use within the 6820EVS panel enclosure as a field-serviceable component\u003c\/li\u003e\n\u003cli\u003eCompatible with SK protocol SLC for addressable field devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 6820EVSBD is a replacement board for the Silent Knight 6820EVS combined fire alarm and emergency voice system control panel (a Honeywell brand). The 6820EVS integrates fire alarm detection and voice evacuation functions in one chassis; the EVSBD board provides the panel-level circuitry that processes alarm signals, drives speaker amplifier outputs, and manages emergency announcement sequencing. Replacement boards restore the original UL 864 and UL 2572 dual-listed configuration after field service. Reference the 6820EVSBD compatibility guide in the panel service manual to confirm panel revision before ordering.\u003c\/p\u003e\n\u003cp\u003eVerify panel\/device family compatibility before ordering.\u003c\/p\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":52004373201189,"sku":"6820EVSBD","price":2062.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/7648\/4645\/files\/silent-knight-boards-default-title-silent-knight-6820evsbd-board-only-31896994185440.jpg?v=1771296050","url":"https:\/\/fastalarmdistribution.com\/products\/silent-knight-6820evsbd","provider":"Fast Alarm Distribution","version":"1.0","type":"link"}