{"product_id":"yokogawa-snt401-53-cu1n-optical-esb-bus-repeater-master-module","title":"Yokogawa SNT401-53\/CU1N Optical ESB Bus Repeater Master Module","description":"\u003cp\u003eConfigured for high-speed signal conversion in ProSafe-RS safety systems, the \u003cstrong\u003eYokogawa SNT401-53\/CU1N\u003c\/strong\u003e (\u003cstrong\u003eSNT401\u003c\/strong\u003e Optical ESB Bus Repeater Master Module) provides direct electrical-to-optical signal execution for extended communication distances.\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\u003eSNT401-53\/CU1N\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\u003e0.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Yokogawa Bus Module Form Factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e220-240 VAC input requirement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctionality\u003c\/td\u003e\n\u003ctd\u003eElectrical to Optical ESB signal conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Distance\u003c\/td\u003e\n\u003ctd\u003eMax 5 km (via ANT401 fiber optic cable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e10% to 90% (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSafety Instrumented System Communication Integrity\u003c\/h3\u003e\n\u003cp\u003eThe SNT401-53\/CU1N utilizes robust galvanic isolation to maintain signal integrity between the safety-critical electrical backplane and remote I\/O nodes. Within the ProSafe-RS architecture, this module ensures fail-safe state execution by monitoring optical link continuity; any disruption in the fiber optic path triggers immediate bus status feedback to the master controller. The design facilitates deterministic data transmission, preventing signal degradation over the 5 km maximum span while maintaining the required SIL-rated isolation levels necessary for safety-critical network topologies.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the SNT401-53\/CU1N support hot-swapping during active operation?\u003c\/p\u003e\n\u003cp\u003eA: No. Due to the nature of bus master modules and safety-critical system stability, the power supply must be disconnected and the system placed into a maintenance state before module removal or installation.\u003c\/p\u003e\n\u003cp\u003eQ: Is the optical link monitoring capable of detecting partial signal attenuation?\u003c\/p\u003e\n\u003cp\u003eA: The module is designed to monitor for link loss. While it provides transmission over 5 km, performance is contingent upon the use of specified ANT401 fiber optic cabling and proper termination to avoid excess signal loss that could trigger a bus fault.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting\u003c\/strong\u003e: Ensure the module is seated securely within the designated I\/O rack slot. Utilize the locking mechanisms to provide vibration resistance in high-density rack configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiber Optic Handling\u003c\/strong\u003e: When connecting the fiber optic interface, ensure the optical connector is clean and free of debris. Maintain a minimum bend radius for the fiber optic cable to prevent micro-cracks and subsequent signal attenuation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding and Grounding\u003c\/strong\u003e: Connect the module chassis to the system common ground point using low-impedance conductors to provide effective EMI protection. Ensure that electrical bus cabling is segregated from high-voltage power lines to prevent induced noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management\u003c\/strong\u003e: While the module is rated up to 70 deg C, maintain adequate clearance around the rack ventilation slots to ensure consistent passive heat dissipation and prevent localized thermal saturation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49515401740540,"sku":"SNT401-53\/CU1N","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/SNT401-53CU1N1.jpg?v=1783906475","url":"https:\/\/www.electronicplc.com\/es\/products\/yokogawa-snt401-53-cu1n-optical-esb-bus-repeater-master-module","provider":"Electronic PLC","version":"1.0","type":"link"}