{"product_id":"alr121-se1-yokogawa-serial-communication-module-new-original-stock","title":"ALR121-SE1 Yokogawa Serial Communication Module | New \u0026 Original Stock","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa ALR121-SE1\u003c\/strong\u003e (\u003cstrong\u003eALR121\u003c\/strong\u003e Serial Communication Module) serves as the primary \u003cstrong\u003eALR121\u003c\/strong\u003e interface component utilized to execute high-speed serial data exchange between Field Control Stations (FCS) and subsystem platforms like the FA-M3.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe ALR121-SE1 identifier specifies the hardware revision and interface environment:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eALR121\u003c\/strong\u003e: Base Serial Communication Module model series.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-S\u003c\/strong\u003e: Denotes the standard hardware release for CENTUM series integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eE1\u003c\/strong\u003e: Specifies the environmental and regional configuration, ensuring compatibility with Yokogawa FCS I\/O backplanes.\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-SE1\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\u003e130 mm x 30 mm x 100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 50 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Speed\u003c\/td\u003e\n\u003ctd\u003eUp to 115.2 kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSerial Communication and Subsystem Integration\u003c\/h3\u003e\n\u003cp\u003eThe ALR121-SE1 functions as a specialized gateway that translates serial protocols, allowing the FCS to integrate seamlessly with external subsystems such as FA-M3 controllers. The module manages data framing and synchronization at speeds up to 115.2 kbps, providing stable command and status exchange for distributed control applications. Its electrical design emphasizes high noise immunity, ensuring that data packets remain coherent in industrial environments subject to electromagnetic interference.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Is this module capable of performing RS-485 and RS-232 communication concurrently?\u003c\/p\u003e\n\u003cp\u003eA: The ALR121-SE1 is designed for dedicated serial tasks. Ensure that the communication port configuration in the system engineering software matches the physical wiring of the subsystem; attempting to multiplex different physical standards (RS-232\/RS-485) on a single port can lead to signal corruption.\u003c\/p\u003e\n\u003cp\u003eQ: Can the ALR121-SE1 be integrated into any Yokogawa field control unit?\u003c\/p\u003e\n\u003cp\u003eA: The module is compatible with specific Yokogawa FCS I\/O backplanes. Verify the hardware compatibility list for the target FCS node to ensure the module revision supports the installed firmware version of the controller.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInsert the module into the backplane carefully to avoid bending the communication pins; ensure the mechanical locking latches are fully engaged to provide a vibration-resistant connection.\u003c\/li\u003e\n\u003cli\u003eUse shielded, low-capacitance serial cables for long-distance transmissions to ensure signal integrity at the 115.2 kbps data rate.\u003c\/li\u003e\n\u003cli\u003eVerify the termination resistance is correctly set if the module is acting as a node on an RS-485 multi-drop network to prevent signal reflections.\u003c\/li\u003e\n\u003cli\u003eGround the cable shield at the control cabinet entry point to the system ground bus to prevent ground loops that could interfere with low-voltage serial signals.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49171662733564,"sku":"ALR121-SE1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/ALR121-SE11.jpg?v=1780882795","url":"https:\/\/www.electronicplc.com\/products\/alr121-se1-yokogawa-serial-communication-module-new-original-stock","provider":"Electronic PLC","version":"1.0","type":"link"}