{"product_id":"optical-esb-bus-repeater-master-module-yokogawa-snt411-13","title":"Optical ESB Bus Repeater Master Module | Yokogawa SNT411-13","description":"\u003ch2\u003eYokogawa SNT411-13 Optical ESB Bus Repeater Master Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa SNT411-13\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSNT411-13\u003c\/strong\u003e Optical ESB Bus Repeater Master Module, operates as a dedicated hardware component for optical transport of ESB Bus signals within ProSafe-RS Safety Instrumented System networks. It converts electrical ESB signals to optical form to enable long-distance connection between safety control units and remote safety node modules.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\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\u003eModel \/ Brand\u003c\/td\u003e\n\u003ctd\u003eYokogawa SNT411-13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e32.8 mm × 130 mm × 142.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperatingTemp\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePowerConsumption\u003c\/td\u003e\n\u003ctd\u003e0.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eESB Bus optical transport\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection Method\u003c\/td\u003e\n\u003ctd\u003eStar type, Chain type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Connecting Stages\u003c\/td\u003e\n\u003ctd\u003eMaximum two\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Distance\u003c\/td\u003e\n\u003ctd\u003e5 km to 50 km (total for two stages)\u003c\/td\u003e\n\u003c\/tr\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProSafe-RS Optical Transport and Safety Isolation\u003c\/h3\u003e\n\u003cp\u003eThe SNT411-13 provides optical isolation between the master and slave ESB Bus nodes, eliminating ground loop issues and EMI interference. It supports high-speed real-time data handling up to 128 Mbps and can operate in star, chain, or mixed topologies. The module is compatible with dual-redundant network configurations and maintains signal integrity across maximum two connection stages with a total optical path up to 50 km.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the SNT411-13 module be replaced while the system is operational?\u003cbr\u003eA: Hot-swap is supported only when deployed within redundant ProSafe-RS network configurations to avoid interruption to safety functions.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum supported distance for optical transmission?\u003cbr\u003eA: The module can extend optical ESB Bus communication up to 50 km across two connection stages.\u003c\/p\u003e\n\u003cp\u003eQ: Which network topologies are supported for connection?\u003cbr\u003eA: The module supports star-type, chain-type, and mixed star\/chain connections.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the module in a Yokogawa-compatible safety rack using standard single-slot allocation.\u003c\/li\u003e\n\u003cli\u003eEnsure optical fibers are properly terminated and cleaned before connection to prevent signal attenuation.\u003c\/li\u003e\n\u003cli\u003eMaintain recommended fiber routing to avoid sharp bends and mechanical stress.\u003c\/li\u003e\n\u003cli\u003eConfirm electrical ESB Bus cabling is grounded and shielded where necessary before optical conversion.\u003c\/li\u003e\n\u003cli\u003eVerify link integrity and attenuation levels between master and slave modules to prevent receiver saturation.\u003c\/li\u003e\n\u003cli\u003eInstall in a controlled environment with ventilation for passive cooling; avoid enclosed high-temperature zones.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44182187114584,"sku":"SNT411-13","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/SNT411-13.jpg?v=1780543668","url":"https:\/\/www.industriaxplc.com\/ar\/products\/optical-esb-bus-repeater-master-module-yokogawa-snt411-13","provider":"IndustriaX Limited","version":"1.0","type":"link"}