I bought this switch from "that other projector website" (sorry) It came with only a schematic on the side which I am having a hard time following. Can anyone shed light on how to wire this or has anyone used this type? Thanks in advance.

Here is a manual I found online
http://www.corcom.com/PDF/P.pdf

This is the back. It may be hard to see but there is a terminal at the bottom for the ground.

The side and schematic.