Converter is very compact 125 x 54 x 25 mm size with external 9V power supply is having following features:-LED indication for Power & Signal Status. Support High Speed Baud Rate upto 11200 BPS. Point to point multidrop. Provision for termination resistor (RS422 / RS485 Receiver Side) Distance upto 1.2 km. / 9600 BPS. Remote Ground Level Protection Built in High Speed Optocoupler for Signal Isolation 3500 VAC.