Operating Temperature Range:-40°C to 85°C
Power Consumption:2.0W max
Data Rate Support:115.2 kbps
Protocol Compatibility:[“ASCII”,”Binary”,”Hexadecimal”]
Form Factor:2U rack mountable
Connection Type:RS-485/RS-422
Dimensions (WxHxD):178mm x 225mm x 69mm
Weight:0.8kg
The Yokogawa ALR121-S51 Serial Communication Module is engineered to withstand harsh industrial environments, ensuring continuous operation under extreme conditions. Its robust design ensures durability and longevity, making it suitable for long-term deployments.
Featuring a versatile range of communication protocols including RS-485, RS-232, and MODBUS RTU, this module supports seamless integration with a wide array of control systems and devices. This flexibility simplifies the setup process and enhances system interoperability.
With support for up to 1 Mbps data transfer rates, the ALR121-S51 enables fast and efficient data exchange between different components of a control system. This capability is crucial for applications where real-time data processing and synchronization are essential.
The module comes equipped with two channels, providing redundancy and fail-safe operation. In the event of a channel failure, the other can seamlessly take over, ensuring uninterrupted data transmission.
Ease of installation and use is another highlight of the Yokogawa ALR121-S51. Its compact size and straightforward configuration make it a convenient addition to any industrial setup. Coupled with its low power consumption, it minimizes energy costs without compromising on functionality.





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