{"product_id":"alr121-s50-yokogawa-communication-module-new-original-stock","title":"ALR121-S50 YOKOGAWA Communication Module | New \u0026 Original Stock","description":"\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA ALR121-S50\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eALR121\u003c\/strong\u003e Communication Module, operates as a dedicated hardware component for serial communication interfacing within CENTUM VP control systems.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe ALR121 series utilizes a specific suffix code structure to define network interface standards and environmental protection levels:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel ALR121:\u003c\/strong\u003e Serial communication module for RS-232\/RS-422\/RS-485 interfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuffix S50:\u003c\/strong\u003e Standard configuration for integration with CENTUM VP field control stations.\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-S50\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 x 12.4 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 range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eSubject to backplane supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eRS-232, RS-422, RS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eSerial data exchange with external devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control Connectivity and Signal Integrity\u003c\/h3\u003e\n\u003cp\u003eThe ALR121-S50 module acts as a high-speed serial interface, facilitating data exchange between the control station and third-party subsystems such as PLCs, analyzers, or barcode scanners. The internal architecture facilitates channel-to-channel isolation, preventing common-mode noise propagation between disparate serial loops. By executing robust signal conditioning, the module ensures that asynchronous data packets maintain integrity over various cable lengths. The module is engineered to handle variable baud rates, maintaining deterministic communication performance within the DCS environment.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the ALR121-S50 support simultaneous operation of different serial standards?\u003c\/p\u003e\n\u003cp\u003eA: The module is designed to support specific serial physical layers. Verification of the module wiring and configuration settings is required to ensure compatibility with the selected RS-232, RS-422, or RS-485 standard.\u003c\/p\u003e\n\u003cp\u003eQ: Is this module hot-swappable?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The ALR121-S50 supports removal and insertion while the control station is powered, provided that local safety and maintenance procedures are strictly followed to avoid electrical discharge during the process.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the control station is de-energized and follows lockout-tagout protocols before commencing hardware installation.\u003c\/li\u003e\n\u003cli\u003eAlign the ALR121-S50 module with the guide rails on the backplane, ensuring pins engage smoothly without lateral pressure.\u003c\/li\u003e\n\u003cli\u003eSecure the module using the built-in locking mechanism to maintain contact stability in high-vibration industrial environments.\u003c\/li\u003e\n\u003cli\u003eConnect serial cables according to the project-specific wiring diagram; ensure the cable shielding is terminated to the cabinet ground to prevent interference.\u003c\/li\u003e\n\u003cli\u003ePerform a diagnostic loop test from the engineering station after installation to confirm communication handshake and data throughput are within nominal parameters.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49199428501756,"sku":"ALR121-S50","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/ALR121-S501.jpg?v=1781487121","url":"https:\/\/www.electronicplc.com\/products\/alr121-s50-yokogawa-communication-module-new-original-stock","provider":"Electronic PLC","version":"1.0","type":"link"}