{"product_id":"redundant-switch-module-honeywell-900rsm-0101-hc900","title":"Redundant Switch Module Honeywell 900RSM-0101 HC900","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHoneywell 900RSM-0101\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a vital component for establishing\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003econtroller redundancy\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewithin the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eControlEdge HC900\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esystem. This\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRedundant Switch Module (RSM)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efacilitates the high-speed synchronization link between dual CPUs, managing the \"Lead\" and \"Reserve\" status of the controllers. We provide this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New factory-original hardware\u003c\/strong\u003e, ensuring instantaneous, bumpless failover to maintain the stability of critical process automation tasks.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e900RSM-0101\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eControlEdge HC900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCPU Redundancy Synchronization and Switching\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18 cm x 11.5 cm x 6.3 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5 kg \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Requirement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePowered via the HC900 backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIndicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFront-panel LEDs for Status and Active Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eInstantaneous CPU Failover\u003c\/strong\u003e\u003cbr\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e900RSM-0101\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econtinuously monitors the heartbeat of the primary CPU. Upon detecting a fault, it triggers an immediate failover to the backup CPU in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emilliseconds\u003c\/strong\u003e, ensuring\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ebumpless transition\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith no interruption to output signals or PID loops. This ensures process stability and maintains operational continuity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDedicated Data Synchronization\u003c\/strong\u003e\u003cbr\u003eThis module facilitates the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehigh-speed exchange\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eof internal variables, registers, and I\/O states between the two CPUs. This continuous \"mirroring\" ensures the reserve CPU always holds an up-to-date copy of the process image, making failover seamless and uninterrupted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNon-Intrusive Maintenance\u003c\/strong\u003e\u003cbr\u003eDesigned for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003enon-intrusive maintenance\u003c\/strong\u003e, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e900RSM-0101\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eallows maintenance teams to replace a failed CPU or the module itself (under specific conditions) without having to shut down the entire control system. This significantly reduces\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMean Time to Repair (MTTR)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor mission-critical infrastructure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRugged Backplane Interface\u003c\/strong\u003e\u003cbr\u003eHoneywell uses\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eindustrial-grade connectors\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e900RSM-0101\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto minimize the effects of oxidation and vibration. This ensures the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehigh-speed synchronization bus\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eremains reliable even in harsh chemical or manufacturing environments, reducing downtime caused by physical wear.\u003c\/p\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need one or two 900RSM-0101 modules for a redundant system?\u003c\/strong\u003e\u003cbr\u003eA standard redundant\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHC900 rack\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econfiguration requires\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eone 900RSM-0101 module\u003c\/strong\u003e. It sits between the two\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCPU modules\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein the redundant chassis, coordinating the redundancy logic and failover process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 900RSM-0101 compatible with all HC900 CPUs?\u003c\/strong\u003e\u003cbr\u003eThis module works specifically with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eredundant-capable CPUs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003elike the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eC70\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eC75\u003c\/strong\u003e, or\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eC75S\u003c\/strong\u003e. It is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003enot required\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003enon-redundant\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCPUs like the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eC30\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eC50\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ethat use a single processor rack.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow can I tell which CPU is currently in control?\u003c\/strong\u003e\u003cbr\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e900RSM-0101\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efeatures\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eLED indicators\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eon the front panel that clearly display which CPU is the \"Lead\" (Active) and which is the \"Reserve\" (Standby). This provides instant diagnostic visibility without requiring a laptop connection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the condition of this unit?\u003c\/strong\u003e\u003cbr\u003eWe guarantee that this product is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e, unused, and ships in its\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eoriginal Honeywell factory-sealed packaging\u003c\/strong\u003e. We do not supply refurbished or used modules, ensuring the reliability of critical redundancy applications.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":49011325337852,"sku":"900RSM-0101","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/900RSM-0101.jpg?v=1776847613","url":"https:\/\/www.electronicplc.com\/products\/redundant-switch-module-honeywell-900rsm-0101-hc900","provider":"Electronic PLC","version":"1.0","type":"link"}