Pilot the the reset line by two input I have two input signal that when activated have to restart the ardiuno board so I have to connect them to the RESET pin. As you know the arduino board have only one RESET pin so I can't connect both to the same pin.
I think that a good idea is a circuit that takes the two inputs and activate the RESTART pin when one of the two is active.
Have you any idea to solve that problem? 

Thank you.
Just use diode logic.

The resistor is probably not needed because the Arduino has an internal pullup resistor.

This assumes that the two reset inputs are active low







simulate this circuit &ndash; Schematic created using CircuitLab