2.1GB SCSI Disk Drives



                  ___________________________________________
                 | Address  | Jumper 4 | Jumper 3 | Jumper 2 |
                 |__________|__________|__________|__________|
                 |    0     |   Off    |   Off    |   Off    |
                 |    1     |   On     |   Off    |   Off    |
                 |    2     |   Off    |   On     |   Off    |
                 |    3     |   On     |   On     |   Off    |
                 |    4     |   Off    |   Off    |   On     |
                 |    5     |   On     |   Off    |   On     |
                 |    6     |   Off    |   On     |   On     |
                 |__________|__________|__________|__________|




     12  11  10  9   8   7   6   5   4   3   2   1
    _______________________________________________
   | o   o   o   o   X   o   o   X   o   X   X   o |
   | o   o   o   o   X   o   o   X   o   X   X   o |
   |_______________________________________________|

     Position 5 and 8 must have jumpers
     Position 1, 6, 7, 9, 10 11 and 12 must not have jumpers