
DATA TECHNOLOGY CORPORATION

DTC2278E (400518-89A)

Data Bus                32-bit VESA Local Bus
Card Size               Three-quarter length, half-height card
Hard Drives supported   Four IDE (AT) or EIDE drives
Floppy drives supported Two 360KB, 720KB, 1.2MB, or 1.44MB drives

[Image]

                                CONNECTIONS

        Function          Location           Function           Location

  10-pin serial port 2 -     J2       40-pin secondary             J6
  internal                            IDE(AT) connector

  9-pin serial port 1 -      J3       40-pin primary IDE(AT)       J7
  external                            connector

  16-pin game port           J4       4-pin connector -            J8
                                      drive active LED

  34-pin cable connector     J5       25-pin parallel port -       J9
  - floppy drive                      external

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

     Game port enabled                          W14          Closed

      Game port disabled                         W14           Open

                     SERIAL PORT 1 ADDRESS SELECTION

             COM                       W5                     W6

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

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

            Disabled           Pins 1 & 2 closed      Pins 1 & 2 closed

      Notes: COM1 & COM3 are automatically configured to IRQ4. COM2 &
      COM4 are automatically configured

      to IRQ3.

                     SERIAL PORT 2 ADDRESS SELECTION

             COM                       W3                     W4

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

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

            Disabled           Pins 1 & 2 closed      Pins 1 & 2 closed

      Notes: COM1 & COM3 are automatically configured to IRQ4. COM2 &
      COM4 are automatically

      configured to IRQ3.

                      PARALLEL PORT ADDRESS SELECTION

             LPT                       W1                     W2

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

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

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

            Disabled           Pins 1 & 2 closed      Pins 1 & 2 closed

                     PARALLEL PORT MODE CONFIGURATION

            Mode                      W7                     W22

               ECP             Pins 2 & 3 closed      Pins 1 & 2 closed

               EPP             Pins 1 & 2 closed      Pins 2 & 3 closed

            Printer           Pins 2 & 3 closed      Pins 2 & 3 closed

  Note: You must select a DMA channel when using ECP mode.

                             DMA CONFIGURATION

     Mode            W8            W9             W10            W11

         1         Closed         Open          Closed          Open

        3          Open         Closed          Open          Closed

                     SERIAL PORT 1 INTERRUPT SELECTION

         IRQ                 W19               W20              W21

           IRQ3              Open            Closed             Open

          IRQ4              Open             Open             Closed

           IRQ5             Closed            Open              Open

                     SERIAL PORT 2 INTERRUPT SELECTION

         IRQ                 W16               W17              W18

          IRQ3              Open             Open             Closed

           IRQ4              Open            Closed             Open

           IRQ5             Closed            Open              Open

                          PARALLEL PORT INTERRUPT

            IRQ                      W12                     W13

            IRQ7                   Open                   Closed

             IRQ5                  Closed                   Open

                       MISCELLANEOUS TECHNICAL NOTES

  The floppy controller in automatically configured. When a cable is
  attached, it is enabled; when no cable is attached it is disabled.

