
DATA TECHNOLOGY CORPORATION

DTC2278VL (900085-89B/D)

  Data bus:                32-bit, VL-bus

  Size:                    Three/quarter-length, half-height card

  Hard drive supported:    Two IDE (AT) interface drives

  Floppy drives            Two 360KB, 720KB, 1.2MB or 1.44MB drives
  supported:

[Image]

                              CONNECTIONS

                     Function                            Location

  4-pin connector - drive active LED                        J1

  40-pin IDE (AT) interface connector - port 1              J2

  34-pin control cabled connector - floppy drive            J3

  Game port                                                 J4

  9-pin serial port 2 - external                            J5

  10-pin serial port 1 - internal                           J6

  25-pin parallel port                                      J7

                        USER CONFIGURABLE SETTINGS

                Function                    Location         Setting

     IDE IRQ14 enabled                        W6           pins 1 & 2
                                                              closed

      IDE IRQ15 enabled                        W6           pins 2 & 3
                                                              closed

     Parallel port is output only            W17           pins 1 & 2
                                                              closed

      Parallel port is input/output           W17           pins 2 & 3
                                                              closed

     Game port enabled                       W26             closed

      Game port disabled                      W26              open

               IDE DATA TRANSFER RATES (FOR 33MHZ VL-BUS PC)

       Rate            W1         W2         W3         W4         W5

       3.9MB/s     pins 1 &   pins 2 &   pins 2 &   pins 2 &    pins 1 &
                       2          3          3          3           2

        3.3MB/s     pins 2 &   pins 2 &   pins 1 &   pins 2 &    pins 1 &
                       3          3          2          3           2

        3.5MB/s     pins 2 &   pins 1 &   pins 2 &   pins 2 &    pins 1 &
                       3          2          3          3           2

        3.7MB/s     pins 2 &   pins 1 &   pins 1 &   pins 2 &    pins 1 &
                       3          2          2          3           2

        4.2MB/s     pins 1 &   pins 2 &   pins 1 &   pins 2 &    pins 1 &
                       2          3          2          3           2

        4.4MB/s     pins 1 &   pins 1 &   pins 2 &   pins 2 &    pins 1 &
                       2          2          3          3           2

        4.8MB/s     pins 1 &   pins 1 &   pins 1 &   pins 2 &    pins 1 &
                       2          2          2          3           2

        5.1MB/s     pins 2 &   pins 2 &   pins 2 &   pins 1 &    pins 1 &
                       3          3          3          2           2

        5.6MB/s     pins 2 &   pins 2 &   pins 1 &   pins 1 &    pins 1 &
                       3          3          2          2           2

        6.1MB/s     pins 2 &   pins 1 &   pins 2 &   pins 1 &    pins 1 &
                       3          2          3          2           2

        6.7MB/s     pins 2 &   pins 1 &   pins 1 &   pins 1 &    pins 1 &
                       3          2          2          2           2

        7.4MB/s     pins 1 &   pins 2 &   pins 2 &   pins 1 &    pins 1 &
                       2          3          3          2           2

        8.3MB/s     pins 1 &   pins 1 &   pins 1 &   pins 1 &    pins 1 &
                       2          2          2          2           2

  Note:The pins indicated should be closed.

             IDE DATA TRANSFER RATES (FOR NON-33MHZ VL-BUS PC)

    Rate         W1           W2          W3          W4           W5

  3.3MB/s      pins 1 &    pins 2 &    pins 1 &     pins 2 &   pins 2 & 3
                  2           3           2            3

  3.6MB/s      pins 1 &    pins 1 &    pins 2 &     pins 2 &   pins 2 & 3
                  2           2           3            3

  3.8MB/s      pins 1 &    pins 1 &    pins 1 &     pins 2 &   pins 2 & 3
                  2           2           2            3

  4.2MB/s      pins 2 &    pins 2 &    pins 2 &     pins 1 &   pins 2 & 3
                  3           3           3            2

  4.5MB/s      pins 2 &    pins 2 &    pins 1 &     pins 1 &   pins 2 & 3
                  3           3           2            2

  5.0MB/s      pins 2 &    pins 1 &    pins 2 &     pins 1 &   pins 2 & 3
                  3           2           3            2

  5.6MB/s      pins 2 &    pins 1 &    pins 1 &     pins 1 &   pins 2 & 3
                  3           2           2            2

  6.3MB/s      pins 1 &    pins 2 &    pins 2 &     pins 1 &   pins 2 & 3
                  2           3           3            2

  7.2MB/s      pins 1 &    pins 1 &    pins 1 &     pins 1 &   pins 2 & 3
                  2           2           2            2

  Note:The pins indicated should be closed.

                        FLOPPY DRIVE CONFIGURATION

           Address                     W7                    W10

              3F0h             pins 2 & 3 closed     pins 1 & 2 closed

               370h             pins 1& 2 closed      pins 1 & 2 closed

             Disabled                  N/A            pins 2 & 3 closed

                             IDE CONFIGURATION

           Address                     W8                     W9

              1F0h             pins 2 & 3 closed     pins 1 & 2 closed

               170h             pins 1& 2 closed      pins 1 & 2 closed

             Disabled                  N/A            pins 2 & 3 closed

                        SERIAL PORT 1 CONFIGURATION

         COM/Address                   W11                   W12

           COM1/3F8h           pins 1 & 2 closed     pins 2 & 3 closed

            COM3/3E8h           pins 2 & 3 closed     pins 1 & 2 closed

            COM4/2E8h           pins 1& 2 closed      pins 1 & 2 closed

             Disabled           pins 2 & 3 closed     pins 2 & 3 closed

                      SERIAL PORT 1 INTERRUPT SELECT

          IRQ                 W18              W19              W20

           IRQ4             closed           open              open

            IRQ3              open           closed             open

            IRQ5              open            open             closed

          Disabled            open            open              open

                        SERIAL PORT 2 CONFIGURATION

         COM/Address                   W13                   W14

           COM2/2F8h           pins 1 & 2 closed     pins 2 & 3 closed

            COM3/3E8h           pins 1 & 2 closed     pins 1 & 2 closed

            COM4/2E8h           pins 2 & 3 closed     pins 1 & 2 closed

             Disabled           pins 2 & 3 closed     pins 2 & 3 closed

                      SERIAL PORT 2 INTERRUPT SELECT

          IRQ                 W21              W22              W23

           IRQ3             closed           open              open

            IRQ4              open           closed             open

            IRQ5              open            open             closed

          Disabled            open            open              open

                        PARALLEL PORT CONFIGURATION

         LPT/Address                   W15                   W16

           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

                      PARALLEL PORT INTERRUPT SELECT

             IRQ                       W24                   W25

              IRQ7                  closed                  open

               IRQ5                   open                  closed

             Disabled                 open                   open

