Interface for Yaesu/Kenpro SDX-series, USB, open-collector-outputs, 4-stage speed-control
ERC-Mini SDX can be used to control rotators of the SDX-series by Yaesu/Kenpro. The interface was checked with the most popular logging-, contesting and remote-programs.
You can use ERC-Mini SDX to directly mount it inside the SDX-control-box.