External power supply on Digital Input

In a RUTX09 or in general on all models with Input, can I apply an external voltage of 12Volt coming from a source other than the power supply to the PIN input (IN THIS CASE PIN4)? (sharing mass obviously)
I just need to understand if I’m getting voltage from a system and I simply wanted to put a small power source that comes from that line to monitor the status of the power supply (present or absent)
I hope I explained myself.
Thanks for the support

Hi,

You can indeed apply voltage to a specific pin. Just be cautious not to exceed 30 volts, as this could harm the device.

For further information on the power options and input/output details for the RUTX09, you can visit these links:

Best regards,
Marijus

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Grazie ! :slight_smile:

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