{"product_id":"honeywell-900rsm-0001-redundant-cpu-switch-module-rsm","title":"Honeywell 900RSM-0001 Redundant CPU Switch Module (RSM)","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n    \u003cp\u003eThe \u003cstrong\u003eHoneywell 900RSM-0001\u003c\/strong\u003e is a \u003cstrong\u003eRedundant CPU Switch Module (RSM)\u003c\/strong\u003e designed for the \u003cstrong\u003eControlEdge HC900\u003c\/strong\u003e redundant controller rack. It provides automatic failover, synchronization, and manual override capabilities between the primary and backup CPUs, ensuring continuous control in mission-critical industrial automation environments. As an earlier-generation redundancy manager, the 900RSM-0001 maintains compatibility with legacy HC900 redundant systems while delivering the high-availability performance required for process and safety applications.\u003c\/p\u003e\n\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAutomatic failover\u003c\/strong\u003e to backup CPU upon primary CPU failure\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCPU synchronization\u003c\/strong\u003e keeps both controllers aligned and ready for switchover\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eManual override\u003c\/strong\u003e enables maintenance or test-driven CPU switching\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eVisual status indicators\u003c\/strong\u003e display primary and backup CPU states\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSeamless integration\u003c\/strong\u003e into ControlEdge HC900 redundant controller racks\u003c\/li\u003e\n        \u003cli\u003eDesigned for \u003cstrong\u003ehigh-availability process control\u003c\/strong\u003e architectures\u003c\/li\u003e\n        \u003cli\u003eOne RSM required \u003cstrong\u003eper redundant controller rack\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 900RSM-0001\u003c\/li\u003e        \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Redundant CPU Switch Module (RSM)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e ControlEdge HC900\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Automatic failover, CPU synchronization, manual switchover\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSystem Compatibility:\u003c\/strong\u003e ControlEdge HC900 Redundant Controller Rack\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFailover Mode:\u003c\/strong\u003e Automatic transfer to backup CPU on primary fault\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eManual Control:\u003c\/strong\u003e Manual override for maintenance and testing\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eStatus Indication:\u003c\/strong\u003e Visual indicators for primary and backup CPU status\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e \u003cstrong\u003e0°C to +60°C\u003c\/strong\u003e\n\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e −25°C to +70°C\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHumidity:\u003c\/strong\u003e 5% to 95% RH (non-condensing)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. \u003cstrong\u003e1.2 kg\u003c\/strong\u003e\n\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e HC900 redundant controller rack slot\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE, TÜV, UL508, CSA\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003eTypical Applications\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003eLegacy HC900 redundant controller systems\u003c\/li\u003e\n        \u003cli\u003eHigh-availability process automation\u003c\/li\u003e\n        \u003cli\u003eSafety instrumented systems requiring CPU redundancy\u003c\/li\u003e\n        \u003cli\u003eChemical and petrochemical plant control\u003c\/li\u003e\n        \u003cli\u003ePower generation and distribution control\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003eFAQ\u003c\/h3\u003e    \u003cdiv class=\"faq-item\"\u003e\n        \u003cp\u003e\u003cstrong\u003eQ: What is the difference between 900RSM-0001 and 900RSM-0101?\u003c\/strong\u003e\u003cbr\u003eA: The \u003cstrong\u003e900RSM-0001\u003c\/strong\u003e is an earlier-generation redundant switch module. The \u003cstrong\u003e900RSM-0101\u003c\/strong\u003e is a newer revision with enhanced features such as IRUP (hot-swap) support and improved key-switch controls. Verify your rack and CPU revision for compatibility.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n        \u003cp\u003e\u003cstrong\u003eQ: Does it support automatic failover?\u003c\/strong\u003e\u003cbr\u003eA: \u003cstrong\u003eYes.\u003c\/strong\u003e The module automatically switches control to the backup CPU if the primary CPU fails.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n        \u003cp\u003e\u003cstrong\u003eQ: Can I manually switch CPUs for maintenance?\u003c\/strong\u003e\u003cbr\u003eA: \u003cstrong\u003eYes.\u003c\/strong\u003e The manual override function allows operators or technicians to force a switchover for testing or maintenance purposes.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n        \u003cp\u003e\u003cstrong\u003eQ: How many RSMs are needed?\u003c\/strong\u003e\u003cbr\u003eA: \u003cstrong\u003eOne per redundant controller rack\u003c\/strong\u003e is required.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n        \u003cp\u003e\u003cstrong\u003eQ: Is this module hot-swappable?\u003c\/strong\u003e\u003cbr\u003eA: Unlike the 900RSM-0101, the \u003cstrong\u003e900RSM-0001\u003c\/strong\u003e should be treated as \u003cstrong\u003enon-hot-swappable\u003c\/strong\u003e. Follow standard power-down procedures for replacement unless your specific system documentation states otherwise.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n    \u003col\u003e        \u003cli\u003e\n\u003cstrong\u003ePower Down:\u003c\/strong\u003e De-energize the redundant controller rack before installing or replacing the 900RSM-0001.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSlot Placement:\u003c\/strong\u003e Insert the module into the designated RSM slot in the redundant controller rack, typically located between the two CPU modules.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCPU Connection:\u003c\/strong\u003e Ensure both primary and backup CPUs are properly seated and connected to the RSM via the rack backplane.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eStatus Check:\u003c\/strong\u003e Power on the rack and observe the status indicators to confirm both CPUs are recognized and synchronized.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFailover Test:\u003c\/strong\u003e Perform a controlled failover test during commissioning to verify automatic and manual switchover functions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Record the primary\/backup CPU assignments and RSM configuration in the system maintenance log.\u003c\/li\u003e\n    \u003c\/ol\u003e\n\n    \u003ch3\u003eSelection Tips\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003eSelect the \u003cstrong\u003e900RSM-0001\u003c\/strong\u003e for \u003cstrong\u003elegacy HC900 redundant systems\u003c\/strong\u003e that specifically require this part number.\u003c\/li\u003e\n        \u003cli\u003eFor \u003cstrong\u003enew installations\u003c\/strong\u003e, prefer the \u003cstrong\u003e900RSM-0101\u003c\/strong\u003e for enhanced hot-swap and diagnostic capabilities.\u003c\/li\u003e\n        \u003cli\u003eAlways verify \u003cstrong\u003econtroller rack part number\u003c\/strong\u003e (e.g., 900RR0-0101 vs. 900RR0-0300) to ensure RSM compatibility.\u003c\/li\u003e        \u003cli\u003eConfirm \u003cstrong\u003eCPU model and firmware revision\u003c\/strong\u003e support the RSM before ordering.\u003c\/li\u003e\n        \u003cli\u003eMaintain a \u003cstrong\u003espare RSM on-site\u003c\/strong\u003e for critical redundant systems to minimize downtime.\u003c\/li\u003e\n    \u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53960065450168,"sku":"900RSM-0001","price":207.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/900RSM-0001.png?v=1787197539","url":"https:\/\/www.globalpetroparts.com\/products\/honeywell-900rsm-0001-redundant-cpu-switch-module-rsm","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}