
DATA TECHNOLOGY CORPORATION

DTC2280E (400572-898)

Data-bus                16-bit ISA
Hard drives supported   Two IDE(AT) interface drives
Floppy drives supported Two 360KB, 720KB, 1.2MB, 1.44MB drives
Size                    Half-length, full-height card

[Image]

                                CONNECTIONS

         Function             Label           Function            Label

  Unidentified                 JP1      10-pin serial port 1 -     JP5
                                        internal

  25-pin parallel port -       JP2      34-pin control cable       JP6
  external                              connector - floppy
                                        drive

  16-pin game port -           JP3      40-pin IDE(AT)             JP7
  internal                              interface connector

  10-pin serial port 2 -       JP4      Drive active LED           JP8
  internal

                       USER CONFIGURABLE CONNECTIONS

              Function                   Location           Setting

     Factory configured - do not           W2           Unidentified
      alter

     Factory configured - do not           W3           Unidentified
      alter

     Game port enabled                     W7         Pins 1 & 2 closed

      Game port disabled                    W7         Pins 2 & 3 closed

     Parallel port IRQ7 enabled            W9         Pins 2 & 3 closed

      Parallel port IRQ5 enabled            W9         Pins 1 & 2 closed

     Serial port 2 enabled                W12         Pins 1 & 2 closed

      Serial port 2 disabled               W12         Pins 2 & 3 closed

     Parallel port address is 378h        W13         Pins 1 & 2 closed
      (LPT1)

      Parallel port address is 278h        W13         Pins 2 & 3 closed
      (LPT2)

     Serial port 2 address is 2F8h        W14         Pins 1 & 2 closed
      (COM2)

      Serial port 2 address is 2E8h        W14         Pins 2 & 3 closed
      (COM4)

     Floppy drive interface               W15         Pins 1 & 2 closed
      enabled

      Floppy drive interface               W15         Pins 2 & 3 closed
      disabled

     IDE(AT) interface enabled            W16         Pins 1 & 2 closed

      IDE(AT) interface disabled           W16         Pins 2 & 3 closed

     Serial port 1 enabled                W17         Pins 1 & 2 closed

      Serial port 1 disabled               W17         Pins 2 & 3 closed

                          CONNECTIONS (CONTINUED)

                Function                    Location          Setting

     Serial port 1 address is 3F8h            W19           Pins 1 & 2
      (COM1)                                                   closed

      Serial port 1 address is 3E8h            W19           Pins 2 & 3
      (COM3)                                                   closed

     IDE(AT) interface address 1F0 -          W20           Pins 1 & 2
      1F7h                                                     closed

      IDE(AT) interface address 170 -          W20           Pins 2 & 3
      177h                                                     closed

                     SERIAL PORT 1 INTERRUPT SELECTION

      IRQ          W5/        W5/         W5/        W5/          W10

                 pins 1 &   pins 2 &    pins 3 &   pins 4 &
                    3          4           5          6

      IRQ4        N/A        N/A         N/A        N/A       Pins 2 & 3
                                                                closed

       IRQ5        N/A        N/A         N/A        N/A       Pins 1 & 2
                                                                closed

       IRQ9      Closed       Open       Open        Open        Open

       IRQ10      Open        Open      Closed       Open        Open

       IRQ11      Open       Closed      Open        Open        Open

       IRQ12      Open        Open       Open       Closed       Open

                     SERIAL PORT 2 INTERRUPT SELECTION

      IRQ          W4/        W4/         W4/        W4/          W8

                 pins 1 &   pins 2 &    pins 3 &   pins 4 &
                    3          4           5          6

      IRQ3        N/A        N/A         N/A        N/A       Pins 2 & 3
                                                                closed

       IRQ4        N/A        N/A         N/A        N/A       Pins 1 & 2
                                                                closed

       IRQ9      Closed       Open       Open        Open        Open

       IRQ10      Open        Open      Closed       Open        Open

       IRQ11      Open       Closed      Open        Open        Open

       IRQ12      Open        Open       Open       Closed       Open

                        IDE(AT) INTERRUPT SELECTION

     IRQ        W6/pins 1 &    W6/pins 2 &    W6/pins 3 &   W6/pins 4 & 6
                     3              4             5

    IRQ11          Open           Open           Open          Closed

    IRQ12          Open          Closed          Open           Open

    IRQ14          Open           Open          Closed          Open

    IRQ15         Closed          Open           Open           OPen

                   DMA CHANNEL SELECTION

      Channel          W1/A      W1/B      W1/C      W1/D

         1             Open      Open     Closed    Closed

         3            Closed    Closed     Open      Open

                    PARALLEL PORT MODE SELECTION

        Setting                 W11                    W18

  Bi-Directional /ECP    Pins 1 & 2 closed      Pins 2 & 3 closed

          EPP            Pins 2 & 3 closed      Pins 1 & 2 closed

    Uni-directional      Pins 1 & 2 closed      Pins 1 & 2 closed

       Disabled          Pins 2 & 3 closed      Pins 2 & 3 closed

