The Connect-IT model 222N converters now comes in two "flavors": The Model 222N allows an RS-232 device with DB-25 port to connect to an RS-422 device up to 4000 feet away over two twisted pair. The Model 222N9 does the same thing for an RS-232 device with a DB-9 port (now called EIA-574). Both converters support data rates up to 19.2 kbps, and require no AC power or batteries for operation. All handshaking lines are looped back. The Model 222NRC is a dual rack card version of the Model 222N, with two converters in one card!
RS232 to RS422 converter series is suitable for asynchronous communication in data communication networks, serial interface converters, rs232 to rs422 converters, SCADA system, and RS232 to RS422 converter cable replacement.