The Terasaki 2101A is a high-performance 86/10 architecture CPU module, serving as the core processing unit for marine power automation and industrial control systems. It integrates a central processor, volatile/non-volatile memory chips, serial communication interfaces, and peripheral control circuits to execute real-time control logic, data processing, and system coordination tasks. This module acts as the "brain" of the Terasaki control system, managing data acquisition from I/O modules, executing advanced control algorithms, facilitating communication with upper-level monitoring systems, and ensuring the stable operation of shipboard power distribution and machinery monitoring. With dual edge connectors and robust EMC protection, it delivers reliable performance in harsh maritime environments characterized by high vibration, salt spray, and electromagnetic interference.