... -friendly RoHS compliant Serial Physical InterfaceSerial InterfaceRS232 - RXD, TXD, RTS, CTS, DTR, DSR, RI, DCDRS422 - RX+, RX-, TX+, TX-RS485 - TRX ... , 8 bitsParityNone, Even, Odd, Mark, SpaceStop Bit1 or 2Flow ControlRTS/CTS Hardware, Xon/Xoff SoftwareNetwork Physical InterfaceNetwork InterfaceRJ45 (10Base-T/100Base ...