{"product_id":"honeywell-900rr0-0101-redundant-cpu-rack-assembly","title":"Honeywell 900RR0-0101 Redundant CPU Rack Assembly","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n    \u003cp\u003eThe \u003cstrong\u003eHoneywell 900RR0-0101\u003c\/strong\u003e is a \u003cstrong\u003eRedundant CPU Rack Assembly\u003c\/strong\u003e designed for the \u003cstrong\u003eControlEdge HC900\u003c\/strong\u003e controller family. This specialized rack chassis houses \u003cstrong\u003edual redundant C75 CPUs\u003c\/strong\u003e and the \u003cstrong\u003eRedundant Switch Module (RSM)\u003c\/strong\u003e, providing a fault-tolerant controller foundation for high-availability process automation. Unlike standard I\/O racks, the 900RR0-0101 is a dedicated controller rack with no local I\/O slots, communicating with up to 12 remote I\/O racks over Ethernet for distributed, scalable control architectures.\u003c\/p\u003e\n\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDedicated redundant CPU rack\u003c\/strong\u003e — houses dual C75 CPUs and RSM\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNo local I\/O slots\u003c\/strong\u003e — controller rack is separate from I\/O racks for clean architecture\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSupports dual independent power supplies\u003c\/strong\u003e — one per CPU for true power redundancy\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCommunicates with up to 12 remote I\/O racks\u003c\/strong\u003e via 100Base-T Ethernet\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePassive cooling design\u003c\/strong\u003e — no fans required, reducing maintenance\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh-grade aluminum construction\u003c\/strong\u003e for industrial durability\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCompact footprint:\u003c\/strong\u003e 137 × 261.6 × 151.7 mm\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWide temperature tolerance\u003c\/strong\u003e for harsh industrial environments\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 900RR0-0101\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Redundant CPU Rack Assembly\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e ControlEdge HC900\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRack Function:\u003c\/strong\u003e Dedicated redundant controller chassis\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCPU Capacity:\u003c\/strong\u003e 2 × redundant C75 CPUs (C70R compatible per configuration)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRSM Slot:\u003c\/strong\u003e 1 × Redundant Switch Module (900RSM-0101 \/ 900RSM-0001)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLocal I\/O Slots:\u003c\/strong\u003e None — I\/O resides in separate remote racks\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRemote I\/O Capacity:\u003c\/strong\u003e Up to \u003cstrong\u003e12 remote I\/O racks\u003c\/strong\u003e via Ethernet\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCommunication:\u003c\/strong\u003e 100Base-T Ethernet to remote racks and host systems\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e Dual independent 900P01 \/ 900P24 power modules (one per CPU)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCooling Method:\u003c\/strong\u003e Passive (no fans)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e High-grade aluminum\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDimensions (W × H × D):\u003c\/strong\u003e \u003cstrong\u003e261.6 × 137 × 151.7 mm\u003c\/strong\u003e (10.3\" × 5.4\" × 6.0\")\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. \u003cstrong\u003e1.75 kg\u003c\/strong\u003e (3.9 lbs)\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 −40°C to +85°C\u003c\/li\u003e        \u003cli\u003e\n\u003cstrong\u003eHumidity:\u003c\/strong\u003e 0% to 95% RH (non-condensing)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Panel or 19-inch rack mount compatible\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE, UL, CSA\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003eTypical Applications\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003eHigh-availability redundant controller foundations\u003c\/li\u003e\n        \u003cli\u003eLarge-scale distributed control systems (DCS)\u003c\/li\u003e\n        \u003cli\u003eSafety instrumented systems (SIS) with CPU redundancy\u003c\/li\u003e\n        \u003cli\u003eOil \u0026amp; gas central control room architectures\u003c\/li\u003e\n        \u003cli\u003eChemical plant and refinery process control\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003eFAQ\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n        \u003cp\u003e\u003cstrong\u003eQ: Does the 900RR0-0101 have I\/O slots?\u003c\/strong\u003e\u003cbr\u003eA: \u003cstrong\u003eNo.\u003c\/strong\u003e It is a dedicated \u003cstrong\u003econtroller-only rack\u003c\/strong\u003e. All I\/O modules reside in separate remote I\/O racks (e.g., 900R08-0101, 900R12-0101) connected via Ethernet.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n        \u003cp\u003e\u003cstrong\u003eQ: How many CPUs does it hold?\u003c\/strong\u003e\u003cbr\u003eA: It accommodates \u003cstrong\u003etwo redundant C75 CPUs\u003c\/strong\u003e (or compatible C70R configurations) plus the Redundant Switch Module.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n        \u003cp\u003e\u003cstrong\u003eQ: How many remote I\/O racks can connect to this controller rack?\u003c\/strong\u003e\u003cbr\u003eA: Up to \u003cstrong\u003e12 remote I\/O racks\u003c\/strong\u003e can be connected via 100Base-T Ethernet using external Ethernet switches.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"faq-item\"\u003e        \u003cp\u003e\u003cstrong\u003eQ: Does it support redundant power?\u003c\/strong\u003e\u003cbr\u003eA: \u003cstrong\u003eYes.\u003c\/strong\u003e Each CPU typically has its own independent power supply module (e.g., 900P01 or 900P24), providing true power redundancy at the controller level.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n        \u003cp\u003e\u003cstrong\u003eQ: What is the maximum distance to remote I\/O racks?\u003c\/strong\u003e\u003cbr\u003eA: Up to \u003cstrong\u003e300 meters (984 feet)\u003c\/strong\u003e using Ethernet switches. Distances up to \u003cstrong\u003e40 kilometers\u003c\/strong\u003e are possible with fiber optic cable and media converters.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n    \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Secure the 900RR0-0101 to a flat panel or 19-inch rack rail in the control cabinet. Ensure adequate clearance for airflow and module access.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCPU Installation:\u003c\/strong\u003e With power OFF, insert the two redundant CPUs into their designated slots. The RSM installs in the slot between them.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePower Supply Wiring:\u003c\/strong\u003e Install independent power modules for each CPU. Connect to separate power sources or UPS units for maximum availability.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEthernet Networking:\u003c\/strong\u003e Connect the CPU Ethernet ports to industrial Ethernet switches using shielded CAT5e\/CAT6 cable. Plan switch port capacity for up to 12 remote I\/O rack connections plus host\/operator interface links.\u003c\/li\u003e        \u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Connect the rack chassis ground terminal to the cabinet earth bus using a minimum 4 mm² grounding conductor.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCommissioning:\u003c\/strong\u003e Power on and verify both CPUs and the RSM are recognized in the Hybrid Control Designer software. Perform a redundancy failover test to validate system integrity.\u003c\/li\u003e\n    \u003c\/ol\u003e\n\n    \u003ch3\u003eSelection Tips\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003eSelect the \u003cstrong\u003e900RR0-0101\u003c\/strong\u003e as the \u003cstrong\u003econtroller foundation\u003c\/strong\u003e for redundant HC900 architectures.\u003c\/li\u003e\n        \u003cli\u003ePair with \u003cstrong\u003etwo C75 CPUs\u003c\/strong\u003e and one \u003cstrong\u003e900RSM-0101\u003c\/strong\u003e (or compatible RSM) for a complete redundant controller assembly.\u003c\/li\u003e\n        \u003cli\u003ePlan \u003cstrong\u003eremote I\/O rack quantity\u003c\/strong\u003e (up to 12) and \u003cstrong\u003eEthernet switch port count\u003c\/strong\u003e during system design.\u003c\/li\u003e\n        \u003cli\u003eUse \u003cstrong\u003efiber optic media converters\u003c\/strong\u003e if remote racks exceed 300 m from the controller.\u003c\/li\u003e\n        \u003cli\u003eVerify whether your application requires the \u003cstrong\u003e900RR0-0101\u003c\/strong\u003e or the newer \u003cstrong\u003e900RR0-0300\u003c\/strong\u003e rack revision for latest CPU compatibility.\u003c\/li\u003e\n    \u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53960070561976,"sku":"900RR0-0101","price":107.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/900RR0-0101_1.png?v=1787197477","url":"https:\/\/www.globalpetroparts.com\/products\/honeywell-900rr0-0101-redundant-cpu-rack-assembly","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}