Very compact and highly integrated, the RJ203A+EM203A Ethernet module features built-in Ethernet magnetics, RJ45 connector, and even four status LEDs! While being a true one-component Ethernet solution, the RJ203A+EM203A  has a board footprint just slightly bigger than that of a regular RJ45 connector.

The RJ203A+EM203A  is a dual-use device: depending on the loaded firmware it can work as a fixed-function, ready-to-run serial-to-Ethernet converter (default) or BASIC-programmable module.

As a serial-to-Ethernet converter, the RJ203A+EM203A  allows you to quickly network-enable practically any serial device.

As a BASIC-programmable controller, the RJ203A+EM203A  offers a low-cost, rapid development alternative to expensive and complex computing platforms, such as LINUX-based boards.

Datasheet