Mikroe RS232 Isolator 2 Click contains a fully isolated transceiver used to provide secure and easy UART to RS232 conversion. The board features the Renesas ICL3221 3.3V powered RS232 transmitter/receiver. It provides ±15kV ESD protection on its RS232 pins. The board has an assured minimum data rate of 250kbps. It features an automatic power-down function and uses high-speed digital optocouplers to isolate the RS232 interface for 3.75kV isolation. It also possesses an LED indicator that indicates a valid RS232 signal at any of the receiver inputs.