1.37GB SCSI Disk Drives
      Disk Drive PN31G9755
      ( 2 possible configurations )
   ____________________________   Config1 (Ex. addr 1)
  |Addr|Jmp ID2|Jmp ID1|Jmp ID0|    _________________
  |____|_______|_______|_______|   | o o X o o o o o |
  | 0  |  Off  | Off   |  Off  |   | o o X o o   o o |
  | 1  |  Off  | Off   |  On   |   |_|_|_|___________|
  | 2  |  Off  | On    |  Off  | ID2_| | |_ID0
  | 3  |  Off  | On    |  On   |       |         Config2 (Ex .addr 3)
  | 4  |  On   | Off   |  Off  |       |           ______________
  | 5  |  On   | Off   |  On   |      ID1         | o X X   o    |
  | 6  |  On   | On    |  Off  |                  | o X X o o    |
  |____|_______|_______|_______|                  |_|_|_|________|
                                                    | | |
   Jumper PN65F1103                             ID2_| | |_ID0
                                                     ID