... family of controllers, combines high-performance 32bit MCU, build-in Ethernet, and offers 3 serial ports (RS232/Rs485) optional. The ... time multi-task operating system (RTOS)l Build-in an Ethernet port and 3 serial communication ports optional, such as RS232, ... RS485, supporting the communication modes of Ethernet, GPRS/CDMA/GSM, wireless radio, special line and satellite ...