{"product_id":"yokogawa-alr121-s50-s1-communication-module","title":"Yokogawa ALR121-S50 S1 Communication Module","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa ALR121-S50 S1\u003c\/strong\u003e serves as the primary \u003cstrong\u003eALR121-S50 S1\u003c\/strong\u003e Communication Module utilized to execute serial communication and subsystem interfacing across distributed control system platforms.\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\u003eALR121-S50 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\u003e0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.2 cm x 12.4 cm x 12.6 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard Industrial Rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard Backplane Power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Type\u003c\/td\u003e\n\u003ctd\u003eSerial Communication Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Configuration\u003c\/td\u003e\n\u003ctd\u003eDual RS-422 \/ RS-485 ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation and Loop Protocol\u003c\/h3\u003e\n\u003cp\u003eThe hardware configuration maintains strict electrical isolation across communication ports to eliminate ground loop interference and suppress transient voltage surges from external field devices. Integration with standard process control communication protocols and serial interface standards ensures deterministic data exchange, high-speed buffering, and transparent command execution without degrading link reliability.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the restrictions regarding hot-swapping the ALR121-S50 S1 module?\u003c\/p\u003e\n\u003cp\u003eA: Hot-swapping is restricted unless explicit node redundancy configuration or controller-level maintenance mode activation is engaged to prevent backplane communication errors.\u003c\/p\u003e\n\u003cp\u003eQ: How are external serial devices connected to the communication module?\u003c\/p\u003e\n\u003cp\u003eA: Field cabling is terminated via dedicated front-panel connectors adhering to RS-422 or RS-485 pinout specifications for balanced differential signaling.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the unit directly into the designated slot of the node base, ensuring physical alignment with backplane connectors before engaging securing screws. Route communication cables away from high-voltage power conduits and use shielded twisted-pair cabling to preserve data integrity. Terminate cable shielding and ground drain wires securely to the designated cabinet earth grounding bar.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":50364151365884,"sku":"ALR121-S50-S1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/ALR121-S50-S1.jpg?v=1784597680","url":"https:\/\/www.electronicplc.com\/es\/products\/yokogawa-alr121-s50-s1-communication-module","provider":"Electronic PLC","version":"1.0","type":"link"}