This room is full of unusual equipment, including many complicated electrical devices, several mechanisms made of brass, and a large collection of mirrors and lenses. Dominating the center of the room is a large construction of uncertain purpose.
On one wall is a large knife switch, the kind with a handle that looks like it requires both hands and substantial strength to pull. It is tied in the Up position with heavy wire. Hanging from the wire is a sign saying "Hey! Don't turn on the main power bus until everything's been checked out."
Another wall has what appears to be a doorway. Looking through it, you see that the other side of the door is a 6 meter drop to the floor of the central tower.