Here it is drawn in LightBurn. I have a lot more to mine (controlling blast gates as well as a master line switch), but this is the relevant schematic for you (including a manual override switch allowing for independent operation of the fume extractor and bypassing the necessity for the controller signalling).
If you want to download the LightBurn drawing, I have attached it as well. You may want to enable Filled Smooth to view it (Alt+Shift+W).
AutoExtractor.lbrn (1.5 MB)