{"product_id":"556-880-simplex-2001-replacement-alarm-trouble-control-module","title":"556-880 | Simplex 2001 Replacement Alarm \u0026 Trouble Control Module","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"396\" data-start=\"144\"\u003eThe Simplex 556-880 Control Module is a replacement alarm and trouble control module designed for use in Simplex 2001 fire alarm systems. It manages alarm initiation, supervisory monitoring, and fault signaling within legacy fire control panels.\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\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSimplex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePLCs\/Machine Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e556-880\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePLC Module\/Rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReplacement Control Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSimplex 2001 Fire Alarm Control Panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlarm and trouble control logic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCircuit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSolid-state, supervised input\/output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlug-in module for 2001 panel rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMulti-layer printed circuit board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal (from system bus)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIndicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLED alarm\/trouble status (if equipped)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32°F to 120°F (0°C to 49°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFire alarm control and supervision\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRegulatory Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL Recognized legacy component\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 8\" H × 6\" W × 1.5\" D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStatus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiscontinued by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.60 lbs (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003e556-880\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe 556-880 module is part of the original Simplex 2001 fire alarm system platform, a legacy line widely used in industrial and institutional facilities. It provides essential alarm and trouble control logic, handling communication between detection circuits and panel indicators. This module supervises input and output channels, processes alarm conditions, and initiates local and remote signaling functions. Built on a robust printed circuit board assembly, the 556-880 ensures reliable operation and serves as a direct replacement component for maintaining or repairing existing Simplex 2001 installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect Replacement Module: Designed for Simplex 2001 series fire alarm control panels.\u003c\/li\u003e\n\u003cli\u003eAlarm and Trouble Control: Processes alarm, supervisory, and fault conditions within the system.\u003c\/li\u003e\n\u003cli\u003eLegacy System Compatibility: Ensures continued operation of 2001-series installations without full panel replacement.\u003c\/li\u003e\n\u003cli\u003eIndustrial-Grade PCB: Durable circuit board designed for continuous use in commercial fire protection environments.\u003c\/li\u003e\n\u003cli\u003eSignal Interface: Provides logic communication between detection zones and output circuits.\u003c\/li\u003e\n\u003cli\u003ePlug-In Design: Mounts directly into the 2001 panel rack assembly for easy service and replacement.\u003c\/li\u003e\n\u003cli\u003eUL Recognized Design: Meets applicable fire system reliability standards.\u003c\/li\u003e\n\u003cli\u003eService Replacement Part: Ideal for system maintenance and restoration of discontinued panels.\u003c\/li\u003e\n\u003cli\u003eTemperature and Humidity Resistant: Engineered for stable operation in controlled environments.\u003c\/li\u003e\n\u003cli\u003eDiscontinued Model: Available as surplus for maintaining legacy Simplex systems still in operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 556-880 delivers the reliable control performance required to maintain legacy Simplex 2001 systems in working condition.\u003c\/p\u003e","brand":"Simplex","offers":[{"title":"Default Title","offer_id":49105158177024,"sku":"556-880","price":1983.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/12cf553e9b8349aea5d326087082dc58.jpg?v=1785541555","url":"https:\/\/alotechparts.com\/products\/556-880-simplex-2001-replacement-alarm-trouble-control-module","provider":"Alo Tech Solutions","version":"1.0","type":"link"}