The optoRS232-HS system can be used for the optical transmission of RS232 signals (hardware handshake) with transmission rates of up to 116 kbit/s. It consists of two identical battery-supplied transceivers connected to each other with an optical fiber. Our integrated devices feature voltage ranges as low as 1. 8 V and a variety of channel configurations and data rates for reliable communication in harsh environments. Design for. MORNSUN RS 232 transceiver modules is designed by RS 232 protocol, and it replaces the traditional design by integrating transceiver, isolation chip and high efficient DC/DC isolated power in one module. Functional Principle and Construction of Optocouplers.