
DATA TECHNOLOGY CORPORATION

DTC2278E (400518-89W)

Card Type               Hard drive controller card
Hard Drives supported   Four EIDE drives
Floppy drives supported Two 360KB, 720KB, 1.2MB, or 1.44MB drives
Data Bus                32-bit VESA Local Bus
Card Size               Full-length, half-height card

[Image]

                                CONNECTIONS

        Function           Location          Function           Location

  9-pin serial port 1 -      CN1      40-pin secondary             J3
  external                            IDE(AT) connector

  25-pin parallel port -     CN2      34-pin cable connector       J4
  external                            - floppy drive

  2-pin connector -           J1      16-pin game port             J5
  drive active LED

  40-pin primary IDE(AT)      J2      10-pin serial port 2 -       J7
  connector                           internal

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

     Floppy drive order is normal (A:, B:)      W26         Pins 1 & 2
                                                              closed

      Floppy drive order is reversed (B:,        W26         Pins 2 & 3
      A:)                                                     closed

     Floppy drive address 3F0-3F7               W27         Pins 2 & 3
                                                              closed

      Floppy drive address 370-377               W27         Pins 1 & 2
                                                              closed

     Floppy drive interface enabled             W28         Pins 1 & 2
                                                              closed

      Floppy drive interface disabled            W28         Pins 2 & 3
                                                              closed

     Game port enabled                          W46          Closed

      Game port disabled                         W46           Open

                      PARALLEL PORT ADDRESS SELECTION

           Setting                    W24                    W25

          LPT1 (378h)         Pins 2 & 3 closed      Pins 1 & 2 closed

           LPT2 (278h)         Pins 1 & 2 closed      Pins 2 & 3 closed

           LPT3 (3BCh)         Pins 1 & 2 closed      Pins 1 & 2 closed

            Disabled           Pins 2 & 3 closed      Pins 2 & 3 closed

                      SERIAL PORT 1 ADDRESS SELECTION

           Setting                    W20                    W21

          COM1 (3F8h)         Pins 1 & 2 closed      Pins 2 & 3 closed

           COM3 (3E8h)         Pins 2 & 3 closed      Pins 1 & 2 closed

            Disabled           Pins 2 & 3 closed      Pins 2 & 3 closed

                      SERIAL PORT 2 ADDRESS SELECTION

           Setting                    W22                    W23

          COM2 (2F8h)         Pins 1 & 2 closed      Pins 2 & 3 closed

           COM4 (2E8h)         Pins 2 & 3 closed      Pins 1 & 2 closed

            Disabled           Pins 2 & 3 closed      Pins 2 & 3 closed

                     SERIAL PORT 1 INTERRUPT SELECTION

        IRQ                W35                W36               W37

         IRQ4            Closed             Open              Open

          IRQ3             Open             Closed             Open

          IRQ5             Open              Open             Closed

                     SERIAL PORT 2 INTERRUPT SELECTION

        IRQ                W38                W39               W40

         IRQ3            Closed             Open              Open

          IRQ4             Open             Closed             Open

          IRQ5             Open              Open             Closed

                     PARALLEL PORT INTERRUPT SELECTION

            IRQ                      W41                     W42

            IRQ7                  Closed                   Open

             IRQ5                   Open                   Closed

                 PARALLEL PORT MODE SELECTION

       Setting               W29                  W30

    Printer mode       Pins 1 & 2 closed   Pins 1 & 2 closed

       EPP/SPP         Pins 2 & 3 closed   Pins 1 & 2 closed

       EPP/ECP         Pins 1 & 2 closed   Pins 2 & 3 closed

       EXT2FDD         Pins 2 & 3 closed   Pins 2 & 3 closed

                  ECP DMA CHANNEL SELECTION

       Channel              Label               Position

          1                  W31           Pins 1 & 2 closed

          3                  W31           Pins 2 & 3 closed

                         PRINTER OUTPUT DIRECTION

     Setting             W43                W44                W45

      Output            Closed             Open                Open

  Bi-directional         Open              Open                Open

   DACK1 (DRQ1)          Open             Closed               Open

   DACK3 (DRQ3)          Open              Open               Closed

