SCSI Notes

  MHz  Bits  DTC  MB/S  Notes

    5     8    N     5
    5    16    N    10
   10     8    N    10  Fast
   10    16    N    20  Fast, Wide
   20     8    N    20  Ultra
   20    16    N    40  Ultra, Wide
   40     8    N    40  Ultra2
   40    16    N    80  Ultra2, Wide
   40    16    Y   160  Ultra160


Maximum cable lengths

  MHz  S/E    HVD  LVD

    5   6m    25m  12m
   10  (3m)   25m  12m
   20  (1.5m) 25m  12m
   40         12m  12m
  DTC              12m

 * (brackets indicate 'not recommended' configurations)

 * No stubs longer than 10cm.

 * Stubs at least 30cm apart.

 * 30, 56, 86, 112cm spacing should minimise reflection effects.