{"product_id":"snt401-yokogawa-optical-esb-bus-repeater-master-module","title":"SNT401 Yokogawa Optical ESB Bus Repeater Master Module","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSNT401\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-speed optical communication interface designed for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa Centum VP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDistributed Control System (DCS). As the \"Master\" side of the optical link, this module converts electrical\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eExtended System Bus (ESB)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esignals into optical data, enabling long-distance transmission. It is essential for connecting\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eField Control Stations (FCS)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith remote I\/O nodes, overcoming the distance limits of copper cables and providing immunity to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eelectromagnetic interference (EMI)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand ground potential differences.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Identification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSNT401\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOptical ESB Bus Repeater (Master Side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNetwork Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCentum VP \/ Centum CS 3000 ESB Bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData Transmission\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBi-directional optical signal conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmission Distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 5 km, depending on the slave module used\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhysical Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12.6 cm (H) x 2.2 cm (W) x 12.4 cm (D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUnit Mass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.3 kg \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNetwork Architecture and Reliability\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSNT401\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis crucial in mission-critical industrial setups, allowing for seamless communication over long distances. When paired with a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eslave module\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003elike the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eANT502\u003c\/strong\u003e, it extends the DCS network across large plant areas, such as offshore platforms or refineries, without the risk of signal degradation. Its compact form factor (2.2 cm width) facilitates high-density installations. Designed with Japanese precision, the module provides excellent\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMean Time Between Failures (MTBF)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor high-availability systems.\u003c\/p\u003e\n\u003ch3\u003eFunctional Comparison: SNT401 vs. SNT501\u003c\/h3\u003e\n\u003cp\u003eWhile both the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSNT401\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSNT501\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserve as master-side repeaters, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSNT501\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003etypically includes updated transceiver technology for different fiber types. However, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSNT401\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eremains the preferred option for standard\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eV net\/IP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eESB bus\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003earchitectures due to its proven performance, lightweight design (0.3 kg), and compatibility with both legacy and modern\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCentum VP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehardware.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the SNT401 be used in a redundant configuration?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSNT401\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecan be installed in a duplexed configuration to ensure optical link availability, preventing interruptions in critical process control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this module require a specific fiber optic connector?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSNT401\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003etypically uses standardized optical connectors (e.g.,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eLC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSC\u003c\/strong\u003e), depending on the sub-model. It is important to match the fiber type (single-mode vs. multi-mode) to the corresponding\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSNT\/ANT\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003epair being used.\u003c\/p\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":51843964043576,"sku":"SNT401","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/SNT401.jpg?v=1772243925","url":"https:\/\/www.automodulexpert.com\/products\/snt401-yokogawa-optical-esb-bus-repeater-master-module","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}