4 pair twisted shielded cable
Микро- конвертер сигнала Rs485 Rs422 Usb VCC для компьютера
USB to RS485 RS422 Converter Product Description This is an universal USB to RS-485/422 converter, there is no need of external power supply. It complies with USB, RS422, and RS-485 standards; it converts USB signal to a balanced differential RS-422 or RS-485 signal. The built-in fast instant ...