{"product_id":"ant401-50-yokogawa-centum-esb-optical-bus-repeater-module","title":"ANT401-50 Yokogawa Centum ESB Optical Bus Repeater Module","description":"\u003ch2\u003eYokogawa ANT401-50 Optical ESB Bus Repeater Master Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa ANT401-50\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eANT401\u003c\/strong\u003e Optical ESB Bus Repeater Master Module, operates as a dedicated hardware component for extending serial fieldbus communication lines over optical fiber within Yokogawa Centum CS3000 and Centum VP DCS networks. The module converts electric ESB bus signals into optical pulses to enable real-time deterministic communication between Field Control Units (FCUs) and remote I\/O nodes over long physical distances.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe base module ordering code designates specific hardware protective treatments and connector configurations:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANT401\u003c\/strong\u003e: Base optical ESB bus repeater master module logic platform.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-50\u003c\/strong\u003e: Standard non-explosion protection hardware build with basic functional integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\/CU1N\u003c\/strong\u003e: Equipped with CU1N connector unit for standard ESB bus cabling interface.\u003c\/li\u003e\n\u003c\/ul\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\/CU1N \/ ANT401\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\u003eSingapore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 kg (Shipping Weight 3.0 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e142.5 mm x 130.0 mm x 32.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e~10 W (24 VDC Nominal, 0.5 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eESB Bus Optical Transport\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Distance\u003c\/td\u003e\n\u003ctd\u003eUp to 5 km (Standard single-mode quartz fiber)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eDual LC (IEC 61754-20 compliant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Loss Limit\u003c\/td\u003e\n\u003ctd\u003e0 to 10 dB @ 1.3 um wavelength\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Topology\u003c\/td\u003e\n\u003ctd\u003eChain (max 2 stages), Star (up to 8 pairs with ANT502)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation and Optical Fieldbus Conversion\u003c\/h3\u003e\n\u003cp\u003eConverting copper ESB signal tracks into optical pulse vectors provides complete galvanic isolation between local Field Control Units and distributed remote node racks. This optical decoupling eliminates ground loop currents and suppresses electro-magnetic interference (EMI) across long-distance plant runs. Internal optoelectronic conversion circuitry processes signal transmissions at deterministic fieldbus rates, utilizing dual Tx\/Rx optical ports to maintain uninterrupted, isolated channel data integrity without introducing protocol conversion latency.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can maintenance personnel perform hot-swap replacement on an active ANT401-50 module?\u003c\/p\u003e\n\u003cp\u003eA: Yes. Technicians can replace the module online without interrupting systemic backplane power, provided the system operates in a dual-redundant ESB bus configuration and the secondary optical link handles active traffic.\u003c\/p\u003e\n\u003cp\u003eQ: What optical power loss parameters must technicians maintain across the fiber link?\u003c\/p\u003e\n\u003cp\u003eA: Field engineers must verify that total optical link loss remains strictly within the 0 to 10 dB margin at the 1.3 um operating wavelength to prevent bit error rate degradation.\u003c\/p\u003e\n\u003cp\u003eQ: How do onboard diagnostic LEDs report physical link errors?\u003c\/p\u003e\n\u003cp\u003eA: Front-panel LED indicators directly reflect 24 VDC power availability, active optical link state, data transfer activity, and internal module fault conditions for rapid troubleshooting.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the module directly into the designated I\/O or communication slot of the node rack, ensuring the rear backplane edge connector fully seats before tightening the top and bottom retention screws. Clean all LC fiber optic connectors with lint-free optical wipes prior to insertion to prevent dust contamination inside the optical transceivers. Maintain minimum bend radius limits on single-mode optical patch cables within the cabinet wireways to avoid micro-bending signal attenuation.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43882218913882,"sku":"ANT401-50\/CU1N","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/869..jpg?v=1787283966","url":"https:\/\/www.spareoil.com\/products\/ant401-50-yokogawa-centum-esb-optical-bus-repeater-module","provider":"SpareOil Automation","version":"1.0","type":"link"}