YOKOGAWA ALR121-S51 S1 Serial Communication Module, Industry Leading Connectivity Solution
The YOKOGAWA ALR121-S51 S1 is a high-performance serial communication module designed for advanced industrial automation systems. This module supports both RS-422 and RS-485 interfaces, offering flexible point-to-point and multipoint communication capabilities. It’s ideal for applications requiring robust data transmission over extended distances.
Product Type:Serial Communication Module
Interface:RS-422/RS-485 (4-wire system)
Connection Method:Point-to-point (RS-422), Multipoint (RS-485)
Communication Function:I/O Wiring – Cable with 3-pair shield, AKB161, or AKB162
Current Consumption:0.5 A
Suffix Code:S=Standard type, 1=With ISA Standard G3
Weight:0.34 kg
The YOKOGAWA ALR121-S51 S1 Serial Communication Module is designed to provide reliable and efficient data transmission in industrial environments. With support for both RS-422 and RS-485 protocols, this module offers flexibility and robust performance for a wide range of applications.
This module employs a 4-wire system which allows it to handle both point-to-point and multipoint connections, making it suitable for various configurations within an industrial setting.
Equipped with advanced I/O wiring options including cable with 3-pair shield, AKB161, or AKB162, this module ensures high-quality data transmission with minimal interference.
Designed for ease of use, the module consumes just 0.5 A of current, ensuring low power consumption without compromising on functionality.
Weighing at only 0.34 kg, the YOKOGAWA ALR121-S51 S1 is lightweight yet durable, making it easy to install and maintain in any industrial setup.


















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