SUNTEK INFORMATION SYSTEMS, INC.

I/O EXTENSION XT

Card Type          Multi I/O card
Chipset Controller Unidentified
I/O Options        Serial port (2), game port, parallel port
Maximum DRAM       N/A

[Image]

                                CONNECTIONS

       Purpose           Location           Purpose           Location

  9-pin serial port         J1         25-pin parallel           J3
  connector 1                          port connector

  10-pin serial port        J2         16-pin game port          J4
  interface 2                          interface

                 PARALLEL PORT BASE I/O ADDRESS SELECTION

                Address                               SW1/3

  »                 378h                               Off

                    278h                                On

                     PARALLEL PORT INTERRUPT SELECTION

           IRQ                    JP3/A                    JP3/B

  »           7                    Open                    Closed

              5                   Closed                    Open

                      SERIAL PORT 1 & 2 CONFIGURATION

   Serial port 1       Serial port 2         SW1/1             SW1/2

    COM1 (3F8h -        COM2 (2F8h -          Off               On
       3FFh)               2FFh)

    COM2 (2F8h -        COM3 (3E8h -           On               Off
       2FFh)               3EFh)

    COM3 (3E8h -        COM4 (2E8h -           On               On
       3EFh)               2EFh)

      Disabled            Disabled            Off               Off

                     SERIAL PORT 1 INTERRUPT SELECTION

      IRQ          JP1/A          JP1/B          JP1/C          JP1/D

  »      4          Open          Open          Closed          Open

         2         Closed         Open           Open           Open

         3          Open         Closed          Open           Open

         5          Open          Open           Open          Closed

                     SERIAL PORT 2 INTERRUPT SELECTION

      IRQ          JP2/A          JP2/B          JP2/C          JP2/D

  »      3          Open         Closed          Open           Open

         2         Closed         Open           Open           Open

         4          Open          Open          Closed          Open

         5          Open          Open           Open          Closed

  REALTIME CLOCK/CALENDAR CONFIGURATION

       Setting               SW1/4

      Disabled                Off

       Enabled                On

  REALTIME CLOCK/CALENDAR INTERRUPT SELECTION

      IRQ            JP4/A           JP4/B

       2             Open           Closed

       5            Closed           Open