I have the metro ( Seyco) vac attachment attached to an old refurbished house style central vac that is tucked away in a noise deadening cupboard for under the table dust. Also a fan at the back of the saw equipped with a filter to take away the dust in the air. I did fix up a 1/2 flex hose to take away the table surface dust that works ok until it plugs up. I also use a dust mask most of the time.
I placed a plugin strip on the saw that fan, vac system, light and the saw { foot control) plugs into. The dust system must be running before the saw can be turned on.
At one I tried the to have the vac plug into the foot switch so the system would start up only when the saw was started . however the vac burnt out prematurally.