Yokogawa Electric Corporation AMN31 S1 Terminal IO Module

The I/O Module Nest for Yokogawa CENTUM DCS cabinets is a rack-mounted, industrial-grade base that mounts and interfaces terminal-type I/O modules, providing the physical and electrical connection between field wiring terminal boards and the I/O modules. Model AMN31 S1, manufactured by Yokogawa, is designed for CENTUM DCS systems, enabling organized module installation and reliable operation within control cabinets. Key specs include an approximate weight of 0.91 kg and a construction suited for industrial environments, with the nest serving as the structural and electrical support for I/O module assemblies. Common applications are in oil and gas, chemical plants, and power generation where Yokogawa CENTUM architectures require secure terminal-based I/O module integration. As a legacy/surplus component, it is associated with replacements such as Yokogawa AMN32 Module Nest, Yokogawa A2NN Node Interface Unit (upgrade path), and Yokogawa N-IO Base Unit Systems.