USB to 2-Port RS422 / RS485
Industrial ISOLATED

U-485G is an isolated USB to RS422 / RS485 converter that requires no external power supply. With its standard DIN rail mount and optional screw terminals it is a great choice for industrial and commercial applications for general use at point to point or point to multi point networks where you wish to protect your equipment from voltage surges and spikes. It connects to other RS422 / RS485 devices and up to 32 nodes can be connected in one network.

The circuitry is build around the popular FT232BL chip from FTDI, with high speed 6N137 isolation optocouplers from Fairchild Semiconductors.
A nice feature of this converter is that it has a slide switch to enable and disable the built-in terminal resistor.

This USB to RS485 / RS422 converter has one RS485 port and one RS422 port. Only one port can be used at a time. Which port is in use (RS485 or RS422) is determined by the slide switch on top of the converter.

Multiple converters can be connected to the same computer without problems. Each converter will then create one virtual COM port which will show up in your computer's Device Manager.