The CWC is designed to simulate the torpedo function and communicates with the communication wire board(CWB) through a wire simulator Board(WSB).The CWC is divided into a digital part and an analog part. The communication of the CWC is via two communication wires, and the analog signals(data, control, and sound) of the torpedo are simulated through analog circuits(amplifiers, filters, ADCs, etc.).It has been designed to meet the WCU requirements of the intagrated combat system for Submarine.