ALR121-S50 | Yokogawa | ALR121 Serial Communication Module
Genuine Yokogawa ALR121-S50. Communication Module.
Technical Specifications
| ALR121-S50 | is a serial communication module from Yokogawa, designed to support industrial communication via RS-422 and RS-485 protocols. It provides reliable data transfer and supports both point-to-point and multipoint connections. |
|---|---|
| Interface: | RS-422/RS-485 |
| Synchronization Method: | Start-stop synchronization |
| Communication Function: | Half-duplex |
| Transmission Speed: | 1200, 2400, 4800, 9600, 19200, 38400 bps (*1) |
| Transmission Code: | ASCII/binary |
| Current Consumption: | 0.5A |
| Dimensions (L x W x H): | 3.28 cm x 14.29 cm x 13 cm |
| Weight: | 0.3 kg |
| Shipping Weight: | 1.5 kg |
| Manufacturer | Yokogawa |
| Model / SKU | ALR121-S50 |
Ships within 24 hours | 12-Month Warranty | Worldwide Delivery
Yokogawa ALR121-S50 — Tested and Ready for Your Yokogawa System
The ALR121-S50 | Yokogawa | ALR121 Serial Communication Module is a communication module designed for Yokogawa automation platforms. Browse our complete selection of Yokogawa spare parts or explore by category: Communication Network Modules. Interface:: RS-422/RS-485. Synchronization Method:: Start-stop synchronization. Communication Function:: Half-duplex. Transmission Speed:: 1200, 2400, 4800, 9600, 19200, 38400 bps (*1). Transmission Code:: ASCII/binary.
Every module we ship undergoes functional verification on a live Yokogawa rack: power-up with correct backplane voltage, all channels exercised with calibrated signal sources, communication ports verified, and 48 hours of continuous operation at 55 degrees Celsius to catch early-life failures. A printed test report with serial number, test date, and measured values accompanies every shipment. Our power supplies and I/O modules follow the same rigorous testing protocol.
For maintenance teams keeping Yokogawa systems running, we recommend maintaining a tested spare for each critical module type. If you are also sourcing related components, consider CP451-10, CP451-11. Genuine Yokogawa with full traceability and Certificate of Conformance. 12-month comprehensive warranty. Ships within 24 hours from Shenzhen via DHL, FedEx, or UPS.
Compatible Parts — Same System
These modules share the same system family as the ALR121-S50. Commonly ordered together for complete rack builds or spare parts kits.
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