{"product_id":"abb-dstc176-57310001-kt-bus-extension-terminator-unit","title":"ABB DSTC176 57310001-KT Bus Extension Terminator Unit","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDSTC176 57310001-KT\u003c\/strong\u003e is a dedicated bus termination module engineered for legacy and extended control bus architectures within\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edistributed control systems. It is designed to provide the correct electrical end-of-line termination for extended bus segments, ensuring reliable signal transmission and long-term communication stability.\u003c\/p\u003e\n\u003cp\u003eIn large Advant OCS and MOD 300 installations, bus extensions are commonly used to connect remote I\/O racks and expansion units over long distances. Without proper termination, signal reflections and impedance mismatches can degrade data integrity. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDSTC176 (57310001-KT)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eaddresses this requirement by introducing a stable termination resistance and a controlled electrical interface at the end of the bus extension.\u003c\/p\u003e\n\u003cp\u003eThe module features a slim, lightweight mechanical design optimized for dense control cabinets, making it suitable for retrofit projects, system expansions, and maintenance replacement of aging DCS hardware.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral Information\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\u003eDSTC176 (57310001-KT)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturer: ABB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduct Category: Control System Accessory\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFunctional Role: Bus Extension Termination\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSystem Compatibility: Advant OCS, MOD 300, ABB legacy DCS platforms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eRated Supply Voltage: 24 V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTypical Current Consumption: Approximately 50 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNominal Termination Resistance: 50 Ω\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupported Bus Capacity: Up to 128 signal channels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFunction: End-of-line impedance stabilization for extended bus segments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Data\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eDepth \/ Length: 255 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWidth: 115 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeight: 20 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNet Weight: 0.03 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstallation Type: Control cabinet mounting\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\u003cli\u003e\n\u003cp\u003eBattery Content: None\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntended Environment: Industrial control cabinets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSCIP Reference: 860e0c89-6811-4249-aed8-557879f9f993\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFunctional Characteristics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eProvides precise electrical termination for extended bus lines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMinimizes signal reflection and impedance mismatch\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnhances communication reliability in large distributed I\/O systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports high channel density without affecting bus timing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for long-distance bus expansion in legacy ABB DCS systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTypical Application Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eTermination of bus extensions in Advant OCS systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMOD 300 distributed control system expansions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStabilization of communication lines for remote I\/O racks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReplacement of obsolete or failed bus termination units in existing installations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the DSTC176 an active communication module?\u003c\/strong\u003e\u003cbr\u003eA: No. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDSTC176 (57310001-KT)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a passive termination unit. It does not process control logic or data but ensures correct electrical conditions at the end of a bus extension.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this unit be used without a bus extension?\u003c\/strong\u003e\u003cbr\u003eA: It is specifically intended for bus extension termination. Using it outside this function may not provide any operational benefit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this product suitable for new-generation ABB control systems?\u003c\/strong\u003e\u003cbr\u003eA: The DSTC176 is designed for legacy platforms such as Advant OCS and MOD 300. Compatibility with newer systems should be verified at the system architecture level.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":42983173619802,"sku":"DSTC176 57310001-KT","price":258.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/57310001DSTC1761.jpg?v=1772099825","url":"https:\/\/www.plcmasters.com\/products\/abb-dstc176-57310001-kt-bus-extension-terminator-unit","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}