{"product_id":"abb-dsbc175-3bur001661r1-redundant-i-o-bus-coupler","title":"ABB DSBC175 3BUR001661R1 Redundant I\/O Bus Coupler","description":"\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDSBC175 3BUR001661R1\u003c\/strong\u003e is a redundant S100 I\/O bus coupler engineered for high-availability control architectures based on Advant OCS, MOD 300 software, and AC460 controllers. Its primary role is to maintain continuous, synchronized communication between controllers and distributed S100 I\/O racks, even under fault conditions.\u003c\/p\u003e\n\u003cp\u003eDesigned as a successor to earlier S100 bus interfaces, this unit is widely deployed in system upgrades, spare part strategies, and long-life installations where operational continuity is mandatory.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFunctional Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDSBC175 (3BUR001661R1)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoperates as a dual-channel (1+1) communication interface. Two independent bus paths run in parallel, allowing seamless takeover if one channel is lost. Redundancy management is handled transparently, without disturbing the controller scan cycle or field I\/O updates.\u003c\/p\u003e\n\u003cp\u003eThe module supports online replacement within a redundant configuration, minimizing maintenance-related downtime in live process environments.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis bus coupler is specifically intended for legacy and extended-lifecycle ABB control platforms, including:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eAdvant OCS systems running MOD 300\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAC460 controller families\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eS100 distributed I\/O subsystems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is commonly used as a functional replacement for DSBC173A in existing installations.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eModel:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDSBC175\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOrder Number:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3BUR001661R1\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eModule Type: Redundant S100 I\/O Bus Coupler\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduct Class: Communication Module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCountry of Manufacture: Sweden\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSupply Voltage Range: 85–264 V AC or 110–300 V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInternal Output Supply: 24 V DC (regulated)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAvailable Output Power: Up to 75 W\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated Protections: Overcurrent, short-circuit, and overvoltage safeguards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eWidth: 234 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeight: 22.5 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDepth: 324 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNet Weight: 0.355 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMounting: Rack-based S100 system installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmental \u0026amp; Compliance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eRoHS Status: Not RoHS compliant\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWEEE Classification: Category 5 (Small Equipment)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eReliability and Availability\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDSBC175 (3BUR001661R1)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis designed for continuous operation in mission-critical control systems. Its redundant architecture reduces single points of failure in the I\/O communication layer, supporting high system uptime in demanding industrial processes.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTypical Application Areas\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis module is commonly installed in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003ePower generation and auxiliary plant control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOil, gas, and petrochemical processing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePulp and paper production lines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLarge-scale manufacturing and utilities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLegacy MOD 300 systems requiring stable long-term support\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can DSBC175 directly replace DSBC173A?\u003c\/strong\u003e\u003cbr\u003eA: In most Advant OCS installations, DSBC175 is used as a functional replacement for DSBC173A. System documentation should be reviewed to confirm firmware and redundancy configuration compatibility.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the module support hot replacement?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Within a correctly configured redundant setup, one channel can be replaced while the system remains in operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this module suitable for new control system designs?\u003c\/strong\u003e\u003cbr\u003eA: DSBC175 is intended for legacy and extended-lifecycle platforms. For new systems, modern ABB I\/O and controller families are typically recommended.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":42983158841434,"sku":"DSBC175 3BUR001661R1","price":258.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/DSBC1753BUR001661R12.jpg?v=1772175801","url":"https:\/\/www.plcmasters.com\/fa\/products\/abb-dsbc175-3bur001661r1-redundant-i-o-bus-coupler","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}