{"product_id":"sd500-mim-silent-knight-addressable-mini-input-module-class-b-contact-monitor","title":"SD500-MIM | Silent Knight Addressable Mini Input Module Class B Contact Monitor","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"396\" data-start=\"144\"\u003eThe Silent Knight SD500-MIM is a compact addressable mini input module designed for use with IntelliKnight fire alarm control panels. It provides a supervised, single dry-contact input for monitoring devices such as pull stations or waterflow switches and fits easily inside a single-gang electrical box for discreet installation.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 99.964%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eSilent Knight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eFire Alarm Equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eSD500-MIM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eAddressable Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eIntelliKnight fire alarm control panels (FACPs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eInput Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eSingle dry-contact input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eCircuit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eClass B (Style B) contact monitor wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eSupervision\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eMonitored using End-of-Line (EOL) resistor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eAddressing Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eDIP switch programmable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eWiring Distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eUp to 2,500 ft from the monitored device\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eWire Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eUp to 14 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eFits inside a single-gang electrical box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eCompact plastic enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003e1.50\" × 2.50\" × 0.70\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eNeutral (ivory) finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eMonitors contact closure devices such as pull stations, waterflow switches, and tamper switches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003ePower Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eFrom control panel SLC loop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eSupervised Functions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eDetects alarm contact closure and wiring fault (open circuit) conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003eUL Listed, NFPA 72 compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.697%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.1698%;\"\u003e0.2 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eSD500-MIM\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe SD500-MIM is part of Silent Knight’s IntelliKnight series of addressable fire alarm modules, designed for flexible and reliable system integration. It serves as a single input monitor for dry-contact devices and connects directly to the control panel’s signal line circuit (SLC). The module supervises both alarm and fault conditions, sending precise point identification to the FACP for easy troubleshooting and maintenance. Its small size allows for installation inside standard single-gang boxes or behind wall plates, providing a clean, unobtrusive appearance. The SD500-MIM supports Class B wiring configurations and can be programmed quickly using DIP switches for fast system setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle Contact Monitoring: Provides one supervised dry-contact input for alarm or supervisory signal initiation.\u003c\/li\u003e\n\u003cli\u003eClass B Wiring Support: Compatible with Style B (Class B) contact monitor wiring for straightforward installation.\u003c\/li\u003e\n\u003cli\u003eCompact Design: Miniature form factor fits easily inside a single-gang box or behind existing device plates.\u003c\/li\u003e\n\u003cli\u003eSupervised Operation: Continuously monitors for alarm and open-circuit wiring faults using an EOL resistor.\u003c\/li\u003e\n\u003cli\u003eDIP Switch Addressing: Simple programmable addressing ensures quick configuration in the field.\u003c\/li\u003e\n\u003cli\u003eExtended Wiring Distance: Supports up to 2,500 ft of wiring between the monitored device and the module.\u003c\/li\u003e\n\u003cli\u003eVersatile Application: Ideal for monitoring pull stations, waterflow switches, and other dry-contact devices.\u003c\/li\u003e\n\u003cli\u003eUL Listed and NFPA Compliant: Meets fire safety standards for use in commercial and institutional systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SD500-MIM delivers the reliability and precision required for addressable fire alarm systems, providing compact and dependable monitoring of external contact devices.\u003c\/p\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":49105148641536,"sku":"SD500-MIM","price":433.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/s-l640_67f1415f-9e45-4855-9404-598db03bee8c.jpg?v=1785541324","url":"https:\/\/alotechparts.com\/products\/sd500-mim-silent-knight-addressable-mini-input-module-class-b-contact-monitor","provider":"Alo Tech Solutions","version":"1.0","type":"link"}