{"product_id":"yokogawa-ant401-50-s1-prosafe-rs-optical-bus-repeater-module","title":"YOKOGAWA ANT401-50 S1 ProSafe-RS Optical Bus Repeater Module","description":"\u003ch2\u003eYOKOGAWA ANT401-50 S1 Optical ESB Bus Repeater Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-speed data transmission in CENTUM VP and ProSafe-RS networks, the \u003cstrong\u003eYOKOGAWA ANT401-50 S1\u003c\/strong\u003e (\u003cstrong\u003eANT401-50\u003c\/strong\u003e Optical ESB Bus Repeater Module) provides direct physical\/electrical execution. This hardware component functions as a primary optical bus interface, translating internal bus signals into optical media formats to sustain long-distance communication links between local Node Interface Units and remote Field Control Units (FCU). The unit drives high-throughput optical loops while executing structural galvanic isolation across the transmission lines, ensuring synchronous real-time diagnostics and network data routing without adding latency to the primary industrial control loop.\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 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\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 \/ ~0.3 kg gross\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.2 x 11.4 x 6.3 cm (Module core) \/ 125 x 130 x 248 mm (Total base assembly)\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\u003e5 VDC via Node Interface Unit \/ ~300 mA current draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eCENTUM VP, ProSafe-RS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Input Capacity\u003c\/td\u003e\n\u003ctd\u003e16 analog input channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Type\u003c\/td\u003e\n\u003ctd\u003e4-20 mA current input compatibility matrix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.1% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e250 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003eLower than or equal to 100 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Resistance\u003c\/td\u003e\n\u003ctd\u003eISA G3 corrosion resistance baseline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, UL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and DCS Instrumentation Technical Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe module incorporates robust channel-to-channel isolation parameters alongside system-level galvanic isolation boundaries to prevent ground loops and protect node microprocessors from inductive field transients. Field circuits feed directly into a matrix handling 16 channels, which minimizes footprint demands inside control cabinets.\u003c\/p\u003e\n\u003cp\u003eThe transceiver architecture supports the 4-20 mA HART loop protocol layer, which passes complex field device variables cleanly to the host controller over the optical bus extension. Built-in self-diagnostics continuously track data link health and power supply margins, lighting local front-panel LEDs instantly if line attenuation breaches nominal margins or if an open-loop condition occurs. The S1 connector option provides a specific cabling configuration designed for standard field wiring harnesses.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the ANT401-50 S1 module support on-line hot-swap replacement while the node rack is energized?\u003c\/p\u003e\n\u003cp\u003eA: No, maintenance teams must de-energize the host Node Interface Unit before removing the module. Extracting the card under an active 300 mA load generates backplane transients that disrupt adjacent optical ESB bus communication.\u003c\/p\u003e\n\u003cp\u003eQ: How does the hardware respond if the optical signal experiences significant db attenuation?\u003c\/p\u003e\n\u003cp\u003eA: The internal diagnostic circuit senses the drop below nominal reception thresholds, flags an internal network fault status, and forces the respective 16 analog input registers into a fail-safe state within 100 ms.\u003c\/p\u003e\n\u003cp\u003eQ: Can this module ingest direct RTD or voltage signals without external conditioning?\u003c\/p\u003e\n\u003cp\u003eA: No, the input channels match a 250 Ohm input impedance designed strictly for standard 4-20 mA current loops. Voltage or temperature sensors require dedicated external transmitters to convert signals prior to module termination.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Engagement:\u003c\/strong\u003e Align the module frame straight with the assigned slot on the Node Interface Unit. Tighten the integral securing screws completely to ensure constant contact pressure and mitigate structural plant vibrations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical Fiber Handling:\u003c\/strong\u003e Maintain the minimum specified bend radius when routing the fiber optic cables. Sharp bends introduce severe optical signal loss and induce premature physical fractures in the core.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding Infrastructure:\u003c\/strong\u003e Ground all external 4-20 mA field loops at a single master instrumentation earth point. Keep the shield termination short to maximize high-frequency noise rejection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConduit Route Separation:\u003c\/strong\u003e Separate low-voltage signal cables from high-power AC motor leads or switching circuits. Utilize distinct wire ducts to prevent electromagnetic cross-talk from corrupting the 16 analog inputs.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43700496040026,"sku":"ANT401-50 S1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/672..jpg?v=1784699222","url":"https:\/\/www.spareoil.com\/products\/yokogawa-ant401-50-s1-prosafe-rs-optical-bus-repeater-module","provider":"SpareOil Automation","version":"1.0","type":"link"}