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