
DATA TECHNOLOGY CORPORATION

DTC-2278S/D (900140-89B)

Card Type               Hard drive controller card
Hard Drives supported   Two IDE (AT) 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      34-pin cable connector       J5
  external                            - floppy drive

  25-pin parallel port       CN2      40-pin secondary             J6
  - external                          IDE(AT) connector

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

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

                        USER CONFIGURABLE SETTINGS

                   Function                      Label        Position

     Floppy drive interface enabled              W7         Pins 2 & 3
                                                               closed

      Floppy drive interface disabled             W7         Pins 1 & 2
                                                               closed

     Game port enabled                           W8           Closed

      Game port disabled                          W8            Open

     Parallel port is uni-directional            W17          Closed

      Parallel port is bi-directional             W17           Open

                      PARALLEL PORT ADDRESS SELECTION

           Setting                     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

                      SERIAL PORT 1 ADDRESS SELECTION

           Setting                     W5                     W6

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

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

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

            Disabled           Pins 1 & 2 closed      Pins 1 & 2 closed

                      SERIAL PORT 2 ADDRESS SELECTION

           Setting                     W3                     W4

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

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

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

            Disabled           Pins 1 & 2 closed      Pins 1 & 2 closed

                     SERIAL PORT 1 INTERRUPT SELECTION

          IRQ                 W14              W15              W16

            IRQ3              Open            Closed            Open

           IRQ4              Open             Open            Closed

            IRQ5             Closed            Open             Open

                     SERIAL PORT 2 INTERRUPT SELECTION

          IRQ                 W11              W12              W13

           IRQ3              Open             Open            Closed

            IRQ4              Open            Closed            Open

            IRQ5             Closed            Open             Open

                     PARALLEL PORT INTERRUPT SELECTION

            IRQ                      W9                      W10

             IRQ5                  Closed                   Open

            IRQ7                   Open                   Closed

