{"product_id":"yokogawa-snt401-13-optical-esb-bus-repeater-master-module","title":"Yokogawa SNT401-13 Optical ESB Bus Repeater Master Module","description":"\u003ch3\u003eTechnical Functional Summary\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSNT401-13\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance optical interface module designed for Yokogawa ESB (Extended Serial Bus) architectures. It converts electrical ESB signals into optical signals, enabling long-distance communication between control stations and remote I\/O nodes.\u003c\/p\u003e\n\u003cp\u003eThe module is typically used in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSafety Control Stations (SCS)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eField Control Stations (FCS)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto extend communication distance while providing\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecomplete electrical isolation\u003c\/strong\u003e, eliminating ground loops and reducing electromagnetic interference (EMI) in industrial environments.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eDetailed Engineering Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eOptical ESB Bus Repeater Master\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSNT401-13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber Type\u003c\/td\u003e\n\u003ctd\u003eSingle-mode fiber (SMF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Distance\u003c\/td\u003e\n\u003ctd\u003eUp to ~50 km (depends on fiber quality and slave module)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.2 cm × 12.4 cm × 12.6 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e 0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Conversion\u003c\/td\u003e\n\u003ctd\u003eESB electrical signal → Optical pulse signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy Support\u003c\/td\u003e\n\u003ctd\u003eDual-redundant installation supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eOperational Application\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRemote I\/O networking\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eacross geographically distributed plant areas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous environment isolation\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eusing fiber optics for explosive or high-EMI zones\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eControl system expansion\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor ProSafe-RS and CENTUM architectures while maintaining deterministic timing performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow is SNT401-13 different from ANT401 series?\u003c\/strong\u003e\u003cbr\u003eSNT401-13 is primarily used in safety and control station ESB architectures, while ANT401 series modules are typically ESB bus optical repeaters used in other system layers. Compatibility with backplanes must be verified before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it require a connector unit?\u003c\/strong\u003e\u003cbr\u003eYes. It is usually paired with connector units such as SNT10D for fiber termination and interface connection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan single-mode and multi-mode fiber be mixed?\u003c\/strong\u003e\u003cbr\u003eNo. The module is designed exclusively for single-mode fiber optical wavelengths. Using multi-mode fiber will cause excessive signal attenuation and communication failure.\u003c\/p\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":51820993610040,"sku":"SNT401-13","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/SNT401-13.jpg?v=1771983537","url":"https:\/\/www.automodulexpert.com\/products\/yokogawa-snt401-13-optical-esb-bus-repeater-master-module","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}