{"product_id":"dstc176-57310001-nf-abb-bus-extension-terminator-unit","title":"DSTC176 | 57310001-NF | ABB | 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 (Order No. 57310001-NF)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a dedicated bus termination device developed by\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor use in extended fieldbus and system communication architectures.\u003cbr\u003eIts primary role is to terminate the final node of a bus extension, ensuring impedance matching and eliminating signal reflections that can compromise data integrity.\u003c\/p\u003e\n\u003cp\u003eDesigned as an auxiliary component for legacy and hybrid ABB control platforms, this unit supports stable communication across long-distance bus extensions in distributed control installations. Its passive termination design minimizes electrical noise and maintains predictable signal behavior under continuous operation.\u003c\/p\u003e\n\u003cp\u003eAs a control system accessory, DSTC176 does not perform signal processing or I\/O functions but is essential for reliable system-level communication.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFunctional Characteristics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eDSTC176 is installed exclusively at the physical end of a bus segment and operates as a fixed impedance terminator. Key operational functions include:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eStabilizing differential bus signals at extended cable lengths\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePreventing waveform distortion caused by signal reflection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintaining defined electrical impedance at the bus endpoint\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupporting deterministic data transmission in multi-node systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module is optimized for ABB proprietary bus extensions used within Advant-era and S-series architectures.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eProduct category: Bus extension termination accessory\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMounting type: Inline \/ end-of-line bus installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHousing form factor: Slim, low-profile industrial enclosure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eLength: 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\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Parameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eNominal supply voltage: 24 V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTypical current draw: ~50 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInternal termination impedance: 50 Ω\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupported bus capacity: Up to 128 logical channels (system-dependent)\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\u003eOperating environment: Industrial control cabinets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoHS compliance: No\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\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDSTC176 (57310001-NF)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis intended for use within the following ABB control platforms:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eAdvant OCS distributed control systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdvant Controller 450 architectures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eS100 I\/O systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eS800 I\/O systems when used with bus extension configurations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatibility depends on system topology and bus extension design.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTypical Use Cases\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis terminator unit is commonly applied in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eDistributed control systems with long bus runs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower generation and utility automation networks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChemical and petrochemical process control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturing plants with segmented I\/O layouts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRetrofit or expansion of legacy ABB control systems\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: Does DSTC176 perform any signal conversion or diagnostics?\u003c\/strong\u003e\u003cbr\u003eA: No. DSTC176 is a passive termination device. It does not modify, amplify, or monitor signals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can DSTC176 be installed at intermediate bus nodes?\u003c\/strong\u003e\u003cbr\u003eA: No. It must be installed only at the physical end of a bus segment to avoid impedance mismatch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this unit interchangeable with standard resistor terminators?\u003c\/strong\u003e\u003cbr\u003eA: No. ABB bus systems require system-specific termination characteristics that generic resistors cannot guarantee.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":42977748844634,"sku":"57310001 DSTC176","price":258.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/57310001DSTC1762.jpg?v=1772099825","url":"https:\/\/www.plcmasters.com\/pt\/products\/dstc176-57310001-nf-abb-bus-extension-terminator-unit","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}