I just received my Ultimarc buttons for my control panel and the NO NC and Common contacts are not labeled. I know which is Common but which contact is NO and which is NC? I know that on my J-Stick joystick, the middle one is NO and on my coin door NO is the outer one. I'm assuming that they're the same as the joystick where the middle contact is NO but if someone could verify this I'd appreciate it. Thanks.