Serial Port DeBug Hardware Connection onnect the device "Typec" and the computer. AIO-3588JD4 Typec has two functions (serial port/OTG upgrade) controlled by the dip switch. Please turn the dip switch to "DBG" when debug. Serial Parameters Baud rate: 1500000 Data bit: 8 Stop bit: 1 Parity check: none Flow control: none