OK, sorry this took so long. I am using the relay at the bottom of this post to start and stop my Dewalt with my G-Code (I use UGS, I assume it will work with Easel and Chilipeppr as well)…here is how I have wired it up:
On the power supply where I marked an “A” the positive wire goes to the Arduino header pin 11. The ground wire goes to the Arduino ground.
On the power supply where I marked a “B” the positive goes to the positive relay input and the ground wire goes to the ground input on the relay.
Once wired, the switch on the power supply must be in the logic position, the router plugged into the relay in one of the “Normally Off” plugs, and the router power switch in the “On” position.
In G-Code, the M03 S12500 command turns it on (the router ignores the speed passed, but it needs it to trip the relay)
and the M05 command turns it off.
Makes sense?
http://www.amazon.com/gp/product/B00WV7GMA2?psc=1&redirect=true&ref_=oh_aui_search_detailpage