{"product_id":"abb-tu849-3bse042560r1-redundant-module","title":"ABB TU849 3BSE042560R1 Redundant module","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTU849\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003e3BSE042560R1\u003c\/strong\u003e) is a specialized Module Termination Unit (MTU) designed to provide a redundant communication backbone for S800 I\/O stations. It facilitates the redundant configuration of TB840 or TB840A Optical ModuleBus Modems while connecting them to a single (non-redundant) I\/O cluster. As a passive hardware component, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTU849\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures that the communication link to the controller remains active even if one modem fails, offering a high-reliability bridge between optical and electrical ModuleBus segments.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTU849\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003e3BSE042560R1\u003c\/strong\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRedundant TB840\/TB840A Modems to Single I\/O\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication Protocol:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eModuleBus\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Input:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDual 24 V DC inputs (19.2 V to 30 V)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLine Redundancy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupported\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCluster Addressing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRotary switch (Settings 1 to 7)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting Orientation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVertical or Horizontal DIN rail\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Format:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eS800 I\/O System MTU\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHot Swap Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo (for the MTU itself)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Engineering Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTU849\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003e3BSE042560R1\u003c\/strong\u003e) is engineered for robust industrial networking and simplified field maintenance:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDual Power Architecture:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeaturing independent power supply connections for each modem, the MTU prevents a single power fault from disabling the entire communication interface.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Addressing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAn integrated rotary switch allows engineers to manually set the cluster address (1–7), ensuring clear hardware identification within the I\/O network.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eError-Proof Keying:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEquipped with four mechanical keys (two per modem position), the unit offers 36 unique configurations. This physical \"lock\" ensures only TB840\/TB840A modules can be seated, protecting against electrical mismatch.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReliable Mechanical Latching:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe unit includes a screwdriver-operated latching device that secures the MTU to the DIN rail while simultaneously establishing a solid grounding path for EMC protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSystem Differentiation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUnlike the TU848 (which supports redundant I\/O), the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTU849\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003especifically connects redundant modems to non-redundant I\/O configurations, allowing for tailored system cost-optimization.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":46565135679678,"sku":"TU849 3BSE042560R1","price":500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/4e614cfbdf6c7a3b003269d23fae70c6_666977ba-c0c3-4065-9ac7-d7fdbe387740.png?v=1775526132","url":"https:\/\/www.autooiltech.com\/products\/abb-tu849-3bse042560r1-redundant-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}