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Hi,

what is the input voltage range of I/O pin number 1 (digital input pin) of RUT955 I/O ? It says that it is only for passive sensors. Can I connect 12VDC? If voltage is zero then it becomes open circuit. If I apply any voltage then it will be short circuit right?

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Hello,

If you want the digital output value to change on voltage applied you would need to use pins 2(positive) and 7(ground).

Pin 1 as it states is used for passive sensor output which is high when the pins are shorted, basically just wires touching.

More information can be found in our wiki: https://wiki.teltonika-networks.com/view/RUT955_Input/Output#Status

Regards,

PauliusRug