{"product_id":"yokogawa-ant401-50-cu1t-centum-optical-bus-repeater-modules","title":"Yokogawa ANT401-50\/CU1T CENTUM Optical Bus Repeater Modules","description":"\u003ch2\u003eYokogawa ANT401-50 Optical ESB Bus Repeater Modules\u003c\/h2\u003e\n\u003cp\u003eConfigured for long-distance optical bus transmission in Yokogawa DCS networks, the \u003cstrong\u003eYokogawa ANT401-50\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eANT401-50\/CU1T\u003c\/strong\u003e Optical ESB Bus Repeater Master Module, operates as a dedicated hardware component for extending high-speed ESB bus communication between control units and remote I\/O nodes. The module interfaces dual fiber-optic transmission lines across distributed equipment racks to execute real-time bus signal conversion.\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\u003eANT401-50 (ANT401-50\/CU1T)\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\u003e3.2 cm x 11.4 cm x 6.3 cm\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\u003eStandard backplane supply draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eOptical ESB Bus Repeater Master Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Medium\u003c\/td\u003e\n\u003ctd\u003eSingle-mode fiber-optic cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Transmission Distance\u003c\/td\u003e\n\u003ctd\u003e5 km (up to 50 km with intermediate repeaters)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Redundancy\u003c\/td\u003e\n\u003ctd\u003eDual optical channels (A and B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise Immunity\u003c\/td\u003e\n\u003ctd\u003eHigh EMI resistance via optical isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003eUp to 95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDistributed Bus \u0026amp; Fieldbus Integration Profiles\u003c\/h3\u003e\n\u003cp\u003eThe optical bus repeater master module establishes dual-redundant fiber-optic links to bridge remote node units across extended physical distances. By converting backplane bus communication signals into optical pulses, the module eliminates ground loop differential voltages between control cabinets. Integrated diagnostic hardware monitors optical power margins and signal attenuation on both redundant channels, providing real-time bus state feedback and automatic path switching to preserve control loop determinism in high-noise electrical environments.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the ANT401-50 handle signal path degradation across redundant fiber links?\u003c\/p\u003e\n\u003cp\u003eA: The module continuously checks signal integrity on both primary and secondary optical channels. If signal attenuation or link loss occurs on channel A, communication switches to channel B without causing bus timeouts or controller execution interruptions.\u003c\/p\u003e\n\u003cp\u003eQ: Can the module be inserted into an energized baseplate slot during system operation?\u003c\/p\u003e\n\u003cp\u003eA: Module replacement under live power requires placing the corresponding bus segment in maintenance mode, as interrupting active optical signals will disrupt data traffic to connected downstream nodes.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eFirst, align the module PCB edge connector with the designated node slot and slide the unit into the rack until the latching mechanism locks into place.\u003c\/p\u003e\n\u003cp\u003eNext, remove the protective dust caps from the optical ports and connect single-mode fiber cables using SC-type connectors. Ensure minimum bend radius limits for optical cabling are maintained throughout cable trays, and keep optical fiber paths physically separated from high-voltage AC conductors by at least 200 mm to protect cabling from mechanical damage. Clean optical fiber end-faces with lint-free wipes before mating to prevent signal attenuation.\u003c\/p\u003e\n\u003cp\u003eFinally, confirm that all fiber cable connectors are fully seated, and verify that cabinet ventilation airflow remains unblocked to ensure operational thermal stability within the specified temperature limits.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43873341210714,"sku":"ANT401-5E\/CU1T","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/859.jpg?v=1787195885","url":"https:\/\/www.spareoil.com\/products\/yokogawa-ant401-50-cu1t-centum-optical-bus-repeater-modules","provider":"SpareOil Automation","version":"1.0","type":"link"}