Two Channel RS-232 to RS-422 Converter

Two Channel RS-232 to RS-422 Converter allows your computer to communicate up to 4000 feet by converting the RS-232 signal to RS-422. If the peripheral to be connected will operate on the RS-422 signal, only one converter is required. If both the Data Transmitting Equipment and Data Receiving Equipment use only RS-232, then two converters should be used..