{"product_id":"optical-esb-bus-repeater-master-module-yokogawa-ant401-50-cu1t","title":"Optical ESB Bus Repeater Master Module | Yokogawa ANT401-50\/CU1T","description":"\u003ch2\u003eYokogawa ANT401-50\/CU1T Optical ESB Bus Repeater Master Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa ANT401-50\/CU1T\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eANT401-50\u003c\/strong\u003e Optical ESB Bus Repeater Master Module, operates as a dedicated hardware component for optical transport of ESB Bus signals within CENTUM VP \/ CS 3000 FIO System platforms. The unit converts standard electrical copper backplane signals into optical media streams to drive long-distance communication links to remote I\/O blocks. It serves as the baseline physical layer converter needed to establish deterministic node-to-node connectivity without throughput degradation over extended fiber runs.\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\/CU1T (Style S1)\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\u003ePlatform\u003c\/td\u003e\n\u003ctd\u003eCENTUM VP \/ CENTUM CS 3000 FIO System\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 (Net module weight) \/ 2.0 kg (Total shipping weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e22 x 124 x 126 mm (Overall module structure)\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\u003eApproximately 0.5 A current draw from base chassis supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Configuration Suffix\u003c\/td\u003e\n\u003ctd\u003e5 (Standard type, no explosion protection), 0 (Basic type)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Unit Option\u003c\/td\u003e\n\u003ctd\u003e\/CU1T (Connector unit with built-in terminator for ESB Bus)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Medium\u003c\/td\u003e\n\u003ctd\u003eOptical fiber link (CU1T interface variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Distance\u003c\/td\u003e\n\u003ctd\u003eUp to 5 km per single stage (10 km across dual stages with Vnet\/IP R1.03+)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Topologies\u003c\/td\u003e\n\u003ctd\u003eStar or chain configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Base Installation\u003c\/td\u003e\n\u003ctd\u003eANB10D or AFF50D Field Control Unit (FCU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Slot Allocation\u003c\/td\u003e\n\u003ctd\u003eOdd slots reserved for Bus 1; even slots reserved for Bus 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Compliance\u003c\/td\u003e\n\u003ctd\u003eISA G3 corrosion resistance (when ordered with suffix -3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control Loops and DCS Instrument Integration\u003c\/h3\u003e\n\u003cp\u003eThe module acts as a high-speed serialization gateway that passes field process values from 4-20 mA HART loop protocol networks across distant plant zones to the core processor rack. The internal optical conversion circuits achieve high isolation benchmarks, establishing structural channel-to-channel isolation limits that prevent high-voltage electrical surges from migrating through communication lines. This dielectric isolation preserves signal measurement integrity on distant analog racks, allowing localized cold junction compensation architectures to execute thermal conversions without tracking common-mode ground noise.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What function does the \/CU1T option suffix perform on this specific module assembly?\u003c\/p\u003e\n\u003cp\u003eA: The \/CU1T designation specifies that the hardware includes a dedicated connector unit block fitted with an integrated internal electrical line terminator, matching the characteristic impedance of the incoming copper ESB Bus cable.\u003c\/p\u003e\n\u003cp\u003eQ: How is physical path fault tolerance achieved when deploying this master interface?\u003c\/p\u003e\n\u003cp\u003eA: The architecture supports a dual redundant bus configuration, where the primary module is inserted into an odd-numbered slot of the ANB10D\/AFF50D chassis for Bus 1, and the secondary module occupies an even-numbered slot to handle Bus 2 data mirroring.\u003c\/p\u003e\n\u003cp\u003eQ: Can the single-stage optical transmission limit be extended past 5 km without adding extra stages?\u003c\/p\u003e\n\u003cp\u003eA: No. The physical transceiver components are rated for a maximum line attenuation profile that restricts a single optical fiber run to 5 km; extending the distance up to 10 km requires a two-stage repeating layout and Vnet\/IP R1.03+ system software enablement.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminator Engagement Verification:\u003c\/strong\u003e Confirm that the \/CU1T connector unit is seated and locked flush against the module interface faceplate to prevent signal reflections on the electrical side of the loop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiber Alignment Integrity:\u003c\/strong\u003e Clean all optical fiber cable ferrules using an approved lint-free solvent wipe before inserting them into the transceiver ports to stop airborne dust particles from scattering the light beam.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlot Mapping Allocation:\u003c\/strong\u003e Adhere strictly to the odd-numbered and even-numbered slot constraints inside the ANB10D or AFF50D FCU housing to avoid configuration errors during system boot cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Bend Radius Control:\u003c\/strong\u003e Clamp the incoming optical fiber lines securely inside the wire trunking, keeping cross-sectional bends wide enough to avoid micro-bending losses that reduce communication margins.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43683750379610,"sku":"ANT401-50\/CU1T","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/629..jpg?v=1784598210","url":"https:\/\/www.spareoil.com\/products\/optical-esb-bus-repeater-master-module-yokogawa-ant401-50-cu1t","provider":"SpareOil Automation","version":"1.0","type":"link"}