The RTS terminal of this converter does not work properly, which from, we should not connect it but instead put a positive voltage in the terminal PC RTS-linker.

 

To achieve this we can, through a diode of rectification, the negative terminal connects to one of the wires of the power transformer converter and the cathode connects to the terminal 4 (the linker). Between the terminal 1 (mass) and terminal 4 (RTS-PC) of the linker is necessary to connect an electrolytic capacitor 100 to 400uF of 25V or higher.