{"product_id":"ssb401-11-yokogawa-prosafe-rs-optical-esb-bus-module","title":"SSB401-11 Yokogawa ProSafe-RS Optical ESB Bus Module","description":"\u003ch2\u003eYokogawa SSB401-11 ProSafe-RS Safety Node Base\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa SSB401-11\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSSB401\u003c\/strong\u003e Safety Node Base Unit, operates as a dedicated hardware component for high-speed deterministic bus communications and safety I\/O power routing within ProSafe-RS SIS and CENTUM VP platforms.\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\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSSB401-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\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\u003e0.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e51 x 203 x 146 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eSystem internal regulated DC distribution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctional Type\u003c\/td\u003e\n\u003ctd\u003eSafety Node Base Unit \/ Optical ESB Bus Repeater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Integrity Level\u003c\/td\u003e\n\u003ctd\u003eSIL2 \/ SIL3 (IEC 61508 Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Bus\u003c\/td\u003e\n\u003ctd\u003eESB Bus (Optical Repeater, Master Side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Transfer Rate\u003c\/td\u003e\n\u003ctd\u003e128 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber Connector Type\u003c\/td\u003e\n\u003ctd\u003eSC Connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eOptical isolation via ESB bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and Safety Bus Connectivity\u003c\/h3\u003e\n\u003cp\u003eConfigured for high-reliability process environments, the SSB401-11 provides galvanic isolation and optical signal conversion across distributed network segments. The unit executes deterministic ESB bus data transfer over fiber-optic media, eliminating electrical ground loop interference between Field Control Units and I\/O expansion racks. Integrated channel-to-channel isolation safeguards sensitive SIL3 safety loops against high-voltage surges, maintaining continuous 4-20 mA HART and safety logic loop integrity under severe electromagnetic conditions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the SSB401-11 extend the ESB bus communication distance?\u003c\/p\u003e\n\u003cp\u003eA: The module functions as a master-side optical repeater, converting electrical ESB bus signals into optical signals via standard SC fiber connectors for transmission up to 5 km or 50 km depending on optical configuration.\u003c\/p\u003e\n\u003cp\u003eQ: What safety integrity levels are supported by the SSB401-11 base platform?\u003c\/p\u003e\n\u003cp\u003eA: The unit carries TÜV SÜD certification compliant with IEC 61508 and IEC 61511 standards, supporting SIL2 and SIL3 safety instrumented functions.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the SSB401-11 base into the designated rack slot using four M5 screws to ensure structural stability and reliable backplane engagement. Maintain clean optical interfaces on all SC fiber connectors, applying protective dust caps on unassigned ports to prevent contamination. Ensure a minimum fiber bending radius of 30 mm during cable routing to prevent attenuation losses. Connect the main protective earth ground conductor directly to the chassis grounding terminal using a low-impedance strap before powering the node assembly.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43838380212314,"sku":"SSB401-11","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/608_87a86142-fc35-4828-a27d-cd56dc995331.jpg?v=1786588621","url":"https:\/\/www.spareoil.com\/products\/ssb401-11-yokogawa-prosafe-rs-optical-esb-bus-module","provider":"SpareOil Automation","version":"1.0","type":"link"}