Rambo 1.3 PWM pins

Hi Everyone. I am in the process of refurbishing a Taz 5 I bought a few months back.

I downloaded a manual for the Rambo 1.3 from Ultimachine. I wanted to familiarize myself with the various connections. I also looked over the TAZ 5 Control Box Assembly Workflow assembly

For the PWM pins 1 and 2, what is the voltage there? Is it 12v or 24v? I want to plug a connector for a fan there.

Thanks.