{"product_id":"yokogawa-nflr121-s00-s1-rs-422-rs-485-serial-module","title":"YOKOGAWA NFLR121-S00 S1 RS-422 RS-485 Serial Module","description":"\u003ch2\u003eYOKOGAWA NFLR121-S00 S1 Serial Communication Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for serial communication processing in Yokogawa DCS networks, the \u003cstrong\u003eYOKOGAWA NFLR121-S00 S1\u003c\/strong\u003e (\u003cstrong\u003eNFLR121\u003c\/strong\u003e Serial Communication Module) provides direct physical\/electrical execution. The hardware manages asynchronous data frame formatting and signal translation over dual RS-422\/RS-485 ports to interface remote field units with primary control node backplanes.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBase Model\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSuffix \/ Style Code\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eConfiguration Profile\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNFLR121\u003c\/td\u003e\n\u003ctd\u003e-S00\u003c\/td\u003e\n\u003ctd\u003eStandard physical interface hardware revision\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNFLR121\u003c\/td\u003e\n\u003ctd\u003eS1\u003c\/td\u003e\n\u003ctd\u003eHardware style\/revision level 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003eNFLR121-S00 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\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.2 cm x 14.1 cm x 13.0 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\u003e500 mA (backplane load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003eDual RS-422 \/ RS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Distance\u003c\/td\u003e\n\u003ctd\u003eUp to 1200 meters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Modes\u003c\/td\u003e\n\u003ctd\u003eHalf-duplex \/ Full-duplex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Framing\u003c\/td\u003e\n\u003ctd\u003e7\/8 bits, 1\/2 stop bits, Parity: None\/Even\/Odd\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eChannel-to-channel isolation, 1500 VAC dielectric strength\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control \u0026amp; Serial Network Interfacing\u003c\/h3\u003e\n\u003cp\u003eThe module incorporates channel-to-channel isolation with a 1500 VAC dielectric rating, isolating the internal bus logic from potential ground loop variances and field-side transients. Full EMI foil and braid shielding suppress noise pick-up across long-distance cable runs operating under RS-422\/RS-485 protocols. Standard 4-20 mA HART loop and digital communications pass transparently through serialized field networks while maintaining strict frame synchronization.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the maximum physical cable length supported without signal repeaters?\u003c\/p\u003e\n\u003cp\u003eA: The dual RS-422\/RS-485 serial ports support point-to-point and multidrop network runs up to a maximum distance of 1200 meters when using compliant shielded twisted-pair cabling.\u003c\/p\u003e\n\u003cp\u003eQ: How is the serial communication protocol configured on the module?\u003c\/p\u003e\n\u003cp\u003eA: Software parameters set the start-stop synchronization, ASCII\/Binary data formats, 7 or 8 character lengths, 1 or 2 stop bits, and None\/Even\/Odd parity directly through the DCS engineering environment.\u003c\/p\u003e\n\u003cp\u003eQ: What is the backplane current draw for this unit during active operation?\u003c\/p\u003e\n\u003cp\u003eA: The module draws a nominal current of 500 mA directly from the internal system backplane power rail.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInsert the module into the designated slot of the DCS rack until the rear connector seats firmly into the backplane, then tighten the top and bottom retaining screws to establish frame ground continuity. Maintain passive airflow surrounding the chassis to keep operating conditions within the -20 to +70 deg C envelope.\u003c\/p\u003e\n\u003cp\u003eRun RS-422 and RS-485 communication wires using shielded twisted-pair cables with a characteristic impedance of 120 ohms. Connect terminating resistors across the physical end-nodes of the RS-485 bus to prevent signal reflections over extended cable distances. Route all serial communication wiring through dedicated low-voltage wire trays, maintaining at least 300 mm separation from AC power lines and motor drive leads.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43873197129818,"sku":"NFLR121-S00 S1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/856..jpg?v=1787191661","url":"https:\/\/www.spareoil.com\/products\/yokogawa-nflr121-s00-s1-rs-422-rs-485-serial-module","provider":"SpareOil Automation","version":"1.0","type":"link"}