I drilled an extra 3/4 hole in the middle of all the others at the bottom of the case and used an electrical wire clamp that the cat5 connector fits thru. Most of my LEs are wireless, but I put the hole and clamp in the bottom of all of them so I can change my mind whenever I want or need to. I don't remember the exact term for the clamp, but it is used for romex wire with the little sliding piece that you screw up to hold the wire. I am not trying to be water tight since the hole is on the bottom I am not worried about it.