The original design has no intelligence as it just bodges the Econet address lines onto the Archimedes podule bus, so whilst it works properly, it isn't officially recognised as a podule and a patch to the RISC OS Econet sofware is required. This one has a proper podule ROM so it will show up correctly. In addition, there are two Econet interface options. It will take a standard Master Series Econet module, or it can have the components directly fitted to the board. Also there is provision for Econet clock generation and termination.