Black Box Async RS-232<->RS-485 Interface Converter - serial adapter - RS-232

Get 115.2kbps speed for transmissions over short distances or 19.2-kbps speed at distances up to 4000 feet (1219.2 m).

The IC1625A-F features a DB9 female connector on the RS-232 side, and DB9 female on the RS-485 side. It converts your unbalanced RS-232 signals to balanced half-duplex RS-485 signals.