DTK COMPUTER, INC.

MINI 286 COURIER I/O CARD

Card Type          Multi I/O card
Chipset/Controller Unknown
I/O Options        Parallel port, serial ports (2)
Maximum DRAM       N/A

[Image]

                            CONNECTIONS

     Purpose         Location         Purpose         Location

  Parallel port        CN1         Serial port 2         CN3

  Serial port 1        CN2

                         SERIAL PORT CONFIGURATION

    Port 1 (CN2)       Port 2 (CN3)          JP2               JP1

  »       COM1             COM2        Pins 2 & 3, 4 &      Pins 1 & 2
                                          5 closed            closed

          COM2             COM1        Pins 1 & 2, 5 &      Pins 1 & 2
                                          6 closed            closed

          COM3             COM4        Pins 2 & 3, 4 &      Pins 3 & 4
                                          5 closed            closed

          COM4             COM3        Pins 1 & 2, 5 &      Pins 3 & 4
                                          6 closed            closed

                       SERIAL PORT INTERRUPT SELECT

     Port 1 (CN2)         Port 2 (CN3)                   JP3

  »        IRQ4               IRQ3            Pins 1 & 2, 5 & 6 closed

           IRQ3               IRQ4            Pins 2 & 3, 4 & 5 closed

                      PARALLEL PORT INTERRUPT SELECT

        IRQ             System Type            JP4              JP5

  »       IRQ7         AT compatible          Open           Pins 3 & 4
                                                              closed

          IRQ5         AT compatible         Closed          Pins 1 & 2
                                                              closed

          IRQ7         XT compatible          Open           Pins 3 & 4
                                                              closed

          IRQ7         XT compatible         Closed          Pins 3 & 4
                                                              closed