The 5047 provides breakout of all ECM signals for debug, design validation and development. Plated through holes on the PCB allow soldering of probe wires to IO, Data, Power and Serial Identification signals. LEDs indicate presence of 3V, 5V, +12V, -12V and Ground. Elevates the ECM module by 2 mm and saves wear on the ECM carrier board connectors. Since this is a debug too there is no serial identification circuit.