If the vac has an outlet for triggering from a connected tool, plug in the sander to the outlet, otherwise you'll need to plug the sander in to a wall outlet or extension cord and turn on the vac manually. For the vacuum hose, it's probably not the exact size as the sander's outlet, so some sort of adaptor will be needed. Rockler woodworking has an adaptor kit that would likely work to make the transition, but I've not tried it out.