Amazon - Usb Seriale - Sconti su Usb Seriale AdSpedizione gratis (vedi condizioni) RS232 serial to USB converter cable schematic · AllPinouts interface converter cable for interconnection of USB and RS232 serial interfaces. 4 pin USB A / USB B / mini-USB jack connector at the computer’s USB cable How to wire a usb to a serial plug.. | [H]ard|Forum hardforum›[H]ard|Ware›General HardwareWell there is no "wiring diagram" for that. That's why I've been trying to figure out what the hell the OP is trying to do. rs232 and usb are completely different