________________ _________ _________
                   | Addr | Jumper3 | Jumper2 ³ Jumper1 |
                   |______|_________|_________|_________|
                   |  0   |         |         |         |
                   |  1   |         |         |    X    |
                   |  2   |         |    X    |         |
                   |  3   |         |    X    |    X    |
                   |  4   |    X    |         |         |
                   |  5   |    X    |         |    X    |
                   |  6   |    X    |    X    |         |
                   |  7*  |    X    |    X    |    X    |
                   |______|_________|_________|_________|

                            6   5   4   3   2   1
                           _______________________
                          |                       |
                          | o   o   |   o       o |
                          | o   o   |   o       o |
                          |_____________|_______|_|
                                        |       |
                        Most Significant Bit    |
                                                |
                               Least Significant Bit

                       Jumper 4 parity (always)
                       Jumpers 5 & 6 removed

             * Normally reserved for SCSI adapter address.