{"product_id":"yokogawa-alr121-s00-serial-communication","title":"Yokogawa ALR121-S00 Serial Communication","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa ALR121-S00\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eALR121\u003c\/strong\u003e Serial Communication Module, operates as a dedicated hardware component for half-duplex subsystem integration and data conversion within distributed control system (DCS) architectures.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe ALR121 series utilizes explicit engineering suffixes to define hardware builds and communication interface variants. Below is the technical breakdown for the \u003cstrong\u003eALR121-S00\u003c\/strong\u003e configuration:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eALR121\u003c\/strong\u003e: Core base model designator for the dual-port serial communication module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-S\u003c\/strong\u003e: Standard type construction baseline for standard industrial enclosure installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0\u003c\/strong\u003e: Phase indicator slot mapping designator.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0\u003c\/strong\u003e: Basic functionality block revision baseline.\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\u003eALR121-S00\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\u003e0.34 kg (Net) \/ 1.5 kg (Shipping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard CENTUM series I\/O slot footprint size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard industrial enclosure environmental parameters apply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eInternally derived via I\/O node backplane tracking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSerial Communication Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eRS-422 \/ RS-485 (2 ports)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Function\u003c\/td\u003e\n\u003ctd\u003eHalf-duplex tracking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSynchronization Method\u003c\/td\u003e\n\u003ctd\u003eStart-stop synchronization (Asynchronous)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Code\u003c\/td\u003e\n\u003ctd\u003eBinary data structure execution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Network and Component Architecture\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtocol Conversion Latencies and Throughput\u003c\/strong\u003e The serial communication module establishes a deterministic hardware gateway over its dual RS-422\/RS-485 physical channels. By processing incoming binary start-stop synchronization frames directly on its onboard controller, it minimizes protocol conversion latencies when linking external subsystems like PLCs or instrumentation clusters back to the Field Control Unit (FCU).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntrinsic Safety Barriers and Noise Suppression\u003c\/strong\u003e The differential signaling architecture inherent to the RS-422\/RS-485 standard provides robust common-mode noise rejection. This layout suppresses electrical transients and high-frequency industrial interference over long-distance cable runs, protecting the internal backplane logic bus from external ground potential variations.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":47621294162110,"sku":"ALR121-S00","price":3000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-06-11_15-31-20_f51f589b-a27f-4cbe-a813-e8a78f7b832a.png?v=1781164448","url":"https:\/\/www.autooiltech.com\/ar\/products\/yokogawa-alr121-s00-serial-communication","provider":"AutoOilTech Limited","version":"1.0","type":"link"}