| RS-232 | 
                                 Support UART to RS232 Transceiver  | 
                        
| RS-485 | 
                                 Support UART to RS485 Transceiver  | 
                        
| Multi-protocol | 
                                 Support UART to RS232/RS485/RS422 Muti-Port Transceiver  | 
                        
| CAN | 
                                 Support CAN Bus Transceiver  | 
                        
