{"product_id":"yokogawa-ant401-50-optical-esb-bus-repeater-master-module","title":"Yokogawa ANT401-50 Optical ESB Bus Repeater Master 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 converting electrical ESB bus signals into optical signals within CENTUM VP, CS 3000, and ProSafe-RS control networks.\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 (Style S1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa Electric Corporation\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\u003e0.25 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e22 x 124 x 126 mm\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\u003e0.5 A (from 5 VDC chassis supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Medium\u003c\/td\u003e\n\u003ctd\u003eOptical fiber cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Distance\u003c\/td\u003e\n\u003ctd\u003e5 km per stage (10 km maximum in dual-stage extension)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTopology\u003c\/td\u003e\n\u003ctd\u003eStar or chain configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Units\u003c\/td\u003e\n\u003ctd\u003eANB10D, AFF50D, ANT10U, ANT502-50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eGalvanic isolation between electrical ESB and optical interfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFieldbus Connectivity \u0026amp; Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe ANT401-50 master module converts high-speed electrical ESB signals into modulated optical pulses to extend communication distances between local control units and remote I\/O nodes. By transmitting control traffic over fiber optic links, the module provides complete electrical channel-to-channel isolation, suppressing common-mode noise, ground loops, and high-voltage surges. Integrated diagnostic circuits track link power attenuation margins, reporting real-time signal health status directly to the host control system software.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the ANT401-50 module be replaced online while the control system is active?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module supports online hot-swapping inside standard Yokogawa node units. Replacing the card does not interrupt backplane power or cause data frame corruption on adjacent running modules.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum fiber link distance supported between an ANT401-50 master and an ANT502-50 slave?\u003c\/p\u003e\n\u003cp\u003eA: A single optical stage supports transmission distances up to 5 km over multi-mode or single-mode fiber infrastructure. Connecting two stages in series allows system architects to extend the total bus distance up to 10 km.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInsert the ANT401-50 into the dedicated slot of the field control unit or node unit, securing the top and bottom thumbscrews to ensure frame ground continuity. Connect fiber optic cables using clean LC-type connectors, observing minimum bend radius specifications to avoid micro-bending signal losses. Attach the ESB bus connector unit (such as the CU1N option) firmly to the front interface, and torque all cable retention screws to prevent vibration-induced loosening. Keep fiber ports capped with dust covers until final cable termination to prevent optical transceiver contamination.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43895503257690,"sku":"ANT401-50","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/53._8f9fcd19-e154-474b-9186-b711ffb7bcf3.jpg?v=1787535844","url":"https:\/\/www.spareoil.com\/products\/yokogawa-ant401-50-optical-esb-bus-repeater-master-module","provider":"SpareOil Automation","version":"1.0","type":"link"}