The RS-232 RS-422/485 Converter (Data Only) operates in full-duplex mode over 4-wire lines, and it's transparent to data format and data rates up to 64 kbps. A 4-position terminal block on the RS-422/485 port makes installation a breeze. And this converter is flexible, too - it can work in either point-to-point or multipoint applications. You can set the RS-232 interface as either Data Terminal Equipment (DTE) or Data Communications Equipment (DCE) for a wide range of applications. The RS-232 RS-422/485 Converter (Data Only) is available either as a standalone unit or rack card. Choose your standalone unit for 115- or 230-VAC power. You can transmit data up to 4000 feet (1219.2 m) over the RS-422/485 interface. And in a multipoint application, up to 64 converters can be daisy chained.