____________________________________
                                | Addr | Switch1 | Switch2 | Switch3 |
    ___________                 |______|_________|_________|_________|
   |  _  _  _  |ON              |  0   |   Off   |   Off   |   Off   |
   | | || || | |                |  1   |   On    |   Off   |   Off   |
   | |_||_||_| |OFF             |  2   |   Off   |   On    |   Off   |
   |__1__2__3__|                |  3   |   On    |   On    |   Off   |
                                |  4   |   Off   |   Off   |   On    |
                                |  5   |   On    |   Off   |   On    |
                                |  6   |   Off   |   On    |   On    |
                                |  7   |   On    |   On    |   On    |
                                |______|_________|_________|_________|