I am replacing a 4 way switch, and I'm confused where the wires need to go on the new switch. The old switch had a pair(A) of red and black wires going to 2 terminals labeled line 1, and another pair(B) of red and black wires going to 2 terminals labeled line 2. All 4 terminal screws are brass. There are also neutral wires from each pair that have been tied together but no ground wires.
The new switch has on one side a black screw at the top labeled in and a brass screw at the bottom labeled out. The other side is reversed, with a brass screw at the top labeled out and a black screw at the bottom labeled in.
Any help is appreciated. Also, the new switch has a ground screw. Do I need to find something to ground the switch to? The new switch is an Enerlites brand.