Serial Ports

The 825 Gen2 has three built-in serial ports

COM1	RS232 with RTS/CTS handshake lines
COM2	RS232 or 20mA current loop based on jumper selection on main board
COM3	RS232 or RS485 based on jumper selection and software configuration

Ethernet to serial or USB to serial adapters may also be used if more serial ports are needed.

For 825 Gen2 app development it is recommended to use the CCommSerial class provided in the library lib825ev for serial communications.