Jumper settings for Rumba board?

Hello,

In the lower middle near the power connections is a row of 3 jumper pins (see red circle in the picture). Despite some research, I still don't fully understand what their meaning is and how the jumpers have to be set there.

You can apparently switch between Pwr and 12V_Select. I operate my rumba board externally with 24V. Which setting do I have to choose for the jumpers?

Thank you

I assume that Pwr means that the connected devices (like fans) are powered by the power supply voltage (in my case 24V). 12V means that Rumba reduces the voltage of 24V, so that 12V fans can also be operated directly?

You could easily check that theory with a voltmeter....