DATA TECHNOLOGY CORPORATION

DTC5250CX

  Data bus:                  8-bit, ISA

  Size:                      Full-length, full-height card

  Hard drive supported:      Two MFM ST506/412 drives

  Floppy drives supported:   Four 360KB, 720KB, 1.2MB, or 1.44MB drives

[Image]

                              CONNECTIONS

                     Function                            Location

  34-pin control cable connector-floppy drive               J1

  34-pin control cable connector-hard drive                 J2

  20-pin data cable connector - drive 0                     J3

  20-pin data cable connector - drive 1                     J4

  34-pin floppy drive cable connector - external            J5

                        USER CONFIGURABLE SETTINGS

              Function                    Location            Setting

  »   Floppy drive enabled               J6/jumper 3           open

      Floppy drive disabled              J6/jumper 3          closed

  »   Floppy drive B: 96 tracks per      J6/jumper 6          closed
      inch density enabled

      Floppy drive B: 48 tracks per      J6/jumper 6           open
      inch density enabled

  »   Floppy drive A: 96 tracks per      J6/jumper 7          closed
      inch density enabled

      Floppy drive A: 48 tracks per      J6/jumper 7           open
      inch density enabled

                        USER CONFIGURABLE SETTINGS

              Function                    Location            Setting

  »   Floppy drive port address is      SW2/switch 1            off
      3F0-3F7h

      Floppy drive port address is      SW2/switch 1            on
      370-377h

  »   BIOS enabled                      SW2/switch 3            on

      BIOS disabled                     SW2/switch 3            off

  »   BIOS size 16KB                    SW2/switch 4            on

      BIOS size 8KB                     SW2/switch 4            off

                 DRIVE TYPE SETTINGS - SW1/SWITCHES 1-8

  For settings of SW1 see drive type settings table in document C0061

                               BIOS ADDRESS

   Address      SW2/switch 5   SW2/switch 6   SW2/switch 7   SW2/switch 8

  »   C800h         on             off            on              on

      D800h         on             off            off             on

      E800h         on             off            on             off

                       MISCELLANEOUS TECHNICAL NOTES

  SW2/switch 2 is not used. If QIT01B1 EPROM is installed, jumper W1 must
   be closed, jumpers W2 and W3 must be open. The functions of J6/jumpers
                    1, 2, 4, 5, and 8 are undocumented.