BOCA RESEARCH, INC.

IOAT45

Card Type          Multi I/O card
Chipset/Controller GM82C455
I/O Options        Parallel ports (2), serial ports (2)
Maximum DRAM       N/A

[Image]

                            CONNECTIONS

        Purpose          Location         Purpose          Location

  Parallel port 2          J1       Serial port 1            J4

  Serial port 2            J3       Parallel port 1          J7

                         SERIAL PORT CONFIGURATION

    Port 1 (J4)       J2/A      J2/E     Port 2 (J3)    J2/B       J2/F

  »      COM1        Pins 1    Pins 1       COM2        Pins 1   Pins 1 &
                      & 2       & 2                      & 2        2

         COM3        Pins 1    Pins 2       COM4        Pins 1   Pins 2 &
                      & 2       & 3                      & 2        3

       Disabled      Pins 2     N/A       Disabled      Pins 2     N/A
                      & 3                                & 3

  Note:All Pins designated should be placed in the closed position.

                   PRIMARY SERIAL PORT INTERRUPT SELECT

      IRQ            J2/I           J2/J          J2/K           J2/L

  »     IRQ4          N/A        Pins 1 & 2        N/A           N/A
                                   closed

        IRQ3       Pins 1 & 2       N/A            N/A           N/A
                    closed

        IRQ5          N/A           N/A         Pins 1 & 2       N/A
                                                 closed

        IRQ9          N/A           N/A            N/A        Pins 1 & 2
                                                                closed

                  SECONDARY SERIAL PORT INTERRUPT SELECT

      IRQ            J2/I           J2/J          J2/K           J2/L

  »     IRQ3       Pins 2 & 3       N/A            N/A           N/A
                    closed

        IRQ4          N/A        Pins 2 & 3        N/A           N/A
                                   closed

        IRQ5          N/A           N/A         Pins 2 & 3       N/A
                                                 closed

        IRQ9          N/A           N/A            N/A        Pins 2 & 3
                                                                closed

                        PARALLEL PORT CONFIGURATION

     Port 1 (J7)             J2/C         Port 2 (J1)          J2/D

  »       Enabled         Pins 1 & 2        Enabled          Pins 1 & 2
                            closed                            closed

         Disabled         Pins 2 & 3        Disabled         Pins 2 & 3
                            closed                            closed

                      PARALLEL PORT INTERRUPT SELECT

    Port 1 (J7)            J2/G           Port 2 (J1)          J2/H

  »       IRQ7           Pins 2 & 3          IRQ5           Pins 1 & 2
                          closed                              closed

          IRQ5           Pins 1 & 2          IRQ7           Pins 2 & 3
                          closed                              closed