SCIENTIFIC MICRO SYSTEMS, INC.

OMTI 5100I, OMTI 5200I, OMTI 5400I

  Data bus:                   50-pin SCSI interface

  Size:                       5.25" FF

  Hard drive supported:       Up to two IDE(AT) drives

  Floppy drives supported:    Two 360KB, 720KB, 1.2MB, 1.44Mb or 8"
                              drives (except 5100I)



[Image]

                             CONNECTIONS

                    Function                          Location

  50-pin SCSI interface                                  J1

  40-pin IDE(AT) connector                               J2

  34-pin floppy drive connector (not in 5100I)           J7

  50-pin tape drive connector (5400I only)               J8

  DC power connector                                     J10

                                    SCSI ID

  SCSI    ID/0     ID/1     ID/2     ID/3    ID/4     ID/5     ID/6     ID/7
   ID

  »   0  closed    open     open     open    open     open     open     open

      1   open    closed    open     open    open     open     open     open

      2   open     open    closed    open    open     open     open     open

      3   open     open     open    closed   open     open     open     open

      4   open     open     open     open    closed   open     open     open

      5   open     open     open     open    open     closed   open     open

      6   open     open     open     open    open     open     closed   open

      7   open     open     open     open    open     open     open     closed

                        USER CONFIGURABLE SETTINGS

               Function                     Location          Setting

  »   SCSI parity enabled                 W1/pins 1 & 2        closed

      SCSI parity disabled                W1/pins 2 & 3        closed

  »   Tape drive parity enabled           W2/pins 1 & 2        closed
      (5400I)

      Tape drive parity disabled          W2/pins 2 & 3        closed

      Motor on signal enabled by               W14              open
      command (5200I & 5400I)

      Motor on signal always enabled           W14             closed

      Ready signal for FDC enabled             W15             closed

      Ready signal for FDC disabled            W15              open

                         IDE SECTOR CONFIGURATION

        Bytes/Sector                   W3                     W4

  »            512                    open                   open

               256                   closed                  open

               512                    open                  closed

               1024                  closed                 closed

  Note: The two settings of 512 bytes/sector have different number of
  sector/track.

            LUN 0 DISK TYPE CONFIGURATION

    Drive Type         Model #             W5

       IDE              5100I        open or closed

       IDE          5200I, 5400I          open

     Flexible       5200I, 5400I         closed

            LUN 1 DISK TYPE CONFIGURATION

    Drive Type         Model #             W6

       IDE              5100I        open or closed

       IDE          5200I, 5400I          open

     Flexible       5200I, 5400I         closed

            LUN 2 DISK TYPE CONFIGURATION

    Drive Type         Model #             W7

       IDE              5100I        open or closed

       IDE          5200I, 5400I          open

     Flexible       5200I, 5400I         closed

            LUN 3 DISK TYPE CONFIGURATION

    Drive Type         Model #             W8

       IDE              5100I        open or closed

       IDE             5200I,             open

     Flexible       5200I, 5400I         closed

       Tape             5400I             open