AST RESEARCH, INC.

I/O MINI EXPANSION I/O CARD

Card Type              Parallel card, Serial card
Chip Set               Unidentified
Maximum Onboard Memory None
I/O Options            Parallel port, serial ports (2)
Data Bus               8-bit ISA

[Image]

                                CONNECTIONS

          Function             Label           Function             Label

  Serial port 1                 J1     Serial port 2                 J3

  Parallel port                 J2

                      PARALLEL PORT ADDRESS SELECTION

       Setting              E1                E2                E3

          LPT1            Closed             Open              Open

  »       LPT2             Open             Closed             Open

          LPT3             Open              Open             Closed

                             ADDRESS SELECTION

       Setting               E6               E7                E8

  »        COM1            Closed            Open              Open

           COM2             Open             Open             Closed

                            INTERRUPT SELECTION

       IRQ             E4            E5            E9            E10

  »      IRQ3        Closed         Open         Closed          Open

         IRQ4         Open         Closed         Open           Open

         IRQ7         Open          Open          Open          Closed

            Note: IRQ3 enabled if second serial port is installed.