
DATA TECHNOLOGY CORPORATION

DTC 2278E (400516-89A)

  Data bus:                32-bit VL-Bus

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

  Hard drive supported:    Two IDE(AT) or EIDE interface drives

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

[Image]

                              CONNECTIONS

                     Function                            Location

  10-pin serial port 2 - internal                           J2

  9-pin serial port 1 - external                            J3

  16-pin game port                                          J4

  34-pin cable connector - floppy drive                     J5

  40-pin connector - secondary IDE(AT) interface            J6

  40-pin connector - primary IDE(AT) interface              J7

  4-pin connector - drive active LED                        J8

  25-pin parallel port - external                           J9

                        USER CONFIGURABLE SETTINGS

             Function                    Location            Setting

     Game port enabled                    W14                closed

      Game port disabled                   W14                 open

                          PARALLEL PORT INTERRUPT

            IRQ                      W12                     W13

             IRQ7                   open                   closed

              IRQ5                  closed                   open

                      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

                      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

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

             Disabled           pins 1 & 2 closed      pins 1 & 2 closed

  Note: 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

           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

  Note: COM1 & COM3 are automatically configured to IRQ4.

  COM2 & COM4 are automatically configured to IRQ3.

                     PARALLEL PORT MODE CONFIGURATION

           Mode                       W7                     W22

           Printer           pins 2 & 3 closed       pins 2 & 3 closed

              ECP             pins 2 & 3 closed       pins 1 & 2 closed

              EPP             pins 1 & 2 closed       pins 2 & 3 closed

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

                    DMA SELECTION

  Channel      W8         W9        W10        W11

     1       closed      open     closed      open

     3        open      closed     open      closed

                       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.

