
BOCA RESEARCH INC.

IO/AT 44

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

[Image]

                                CONNECTIONS

     Purpose           Location            Purpose           Location

  Serial port 1           J1           Parallel port 1          J5

  Serial port 2           J2           Parallel port 2          J6

                        PARALLEL PORT CONFIGURATION

     Port 1 (J5)          Port 2 (J3)         J3/A             J3/B

          LPT1              LPT2           Pins 1 & 2       Pins 2 & 3
                                             closed           closed

           LPT2              LPT1           Pins 2 & 3       Pins 1 & 2
                                             closed           closed

         Disabled            LPT1             Open           Pins 1 & 2
                                                              closed

         Disabled            LPT2             Open           Pins 2 & 3
                                                              closed

           LPT1            Disabled         Pins 1 & 2         Open
                                             closed

           LPT2            Disabled         Pins 2 & 3         Open
                                             closed

         Disabled          Disabled           Open             Open

                      PARALLEL PORT INTERRUPT SELECT

   Port 1 (J5)      Port 2 (J3)            J3C                 J3D

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

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

                         SERIAL PORT CONFIGURATION

    Port 1 (J1)      Port 2 (J2)    J4/A      J4/B      J4/C       J4/D

        COM1           COM2       Pins 1     Pins 2    Open       Open
                                    & 2        & 3

         COM1           COM3       Pins 1     Open      Open     Pins 1 &
                                    & 2                             2

         COM1           COM4       Pins 1     Open      Open     Pins 2 &
                                    & 2                             3

         COM2           COM1       Pins 2     Pins 1    Open       Open
                                    & 3        & 2

         COM2           COM3       Pins 2     Open      Open     Pins 1 &
                                    & 3                             2

         COM2           COM4       Pins 2     Open      Open     Pins 2 &
                                    & 3                             3

         COM3           COM1        Open      Pins 1    Pins 1     Open
                                               & 2       & 2

         COM3           COM2        Open      Pins 2    Pins 1     Open
                                               & 3       & 2

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

         COM4           COM1        Open      Pins 1    Pins 2     Open
                                               & 2       & 3

         COM4           COM2        Open      Pins 2    Pins 2     Open
                                               & 3       & 3

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

       Disabled         COM1        Open      Pins 1    Open       Open
                                               & 2

       Disabled         COM2        Open      Pins 2    Open       Open
                                               & 3

       Disabled         COM3        Open      Open      Open     Pins 1 &
                                                                    2

       Disabled         COM4        Open      Open      Open     Pins 2 &
                                                                    3

         COM1         Disabled     Pins 1     Open      Open       Open
                                    & 2

         COM2         Disabled     Pins 2     Open      Open       Open
                                    & 3

         COM3         Disabled      Open      Open      Pins 1     Open
                                                         & 2

         COM4         Disabled      Open      Open      Pins 2     Open
                                                         & 3

  Note: Pins designated should be in the closed position.

                       SERIAL PORT INTERRUPT SELECT

    Port 1 (J1)      Port 2 (J2)    J4/E      J4/F      J4/G       J4/H

        IRQ4           IRQ3        Open      Open      Pins 1   Pins 2 &
                                                         & 2        3

         IRQ4           IRQ2        Open      Pins 1    Pins 1     Open
                                               & 2       & 2

         IRQ4           IRQ5        Open      Pins 2    Pins 1     Open
                                               & 3       & 2

         IRQ2           IRQ3       Pins 1     Open      Open     Pins 2 &
                                    & 2                             3

         IRQ2           IRQ4       Pins 1     Open      Open     Pins 1 &
                                    & 2                             2

         IRQ2           IRQ5       Pins 1     Pins 2    Open       Open
                                    & 2        & 3

         IRQ3           IRQ2        Open      Pins 1    Pins 2     Open
                                               & 2       & 3

         IRQ3           IRQ4        Open      Open      Pins 2   Pins 1 &
                                                         & 3        2

         IRQ3           IRQ5        Open      Pins 2    Pins 2     Open
                                               & 3       & 3

         IRQ5           IRQ2       Pins 2     Pins 1    Open       Open
                                    & 3        & 2

         IRQ5           IRQ3       Pins 2     Open      Open     Pins 2 &
                                    & 3                             3

         IRQ5           IRQ4       Pins 2     Open      Open     Pins 1 &
                                    & 3                             2

       Disabled         IRQ2        Open      Pins 1    Open       Open
                                               & 2

       Disabled         IRQ3        Open      Open      Open     Pins 2 &
                                                                    3

       Disabled         IRQ4        Open      Open      Open     Pins 1 &
                                                                    2

       Disabled         IRQ5        Open      Pins 2    Open       Open
                                               & 3

         IRQ2         Disabled     Pins 1     Open      Open       Open
                                    & 2

         IRQ3         Disabled      Open      Open      Pins 2     Open
                                                         & 3

         IRQ4         Disabled      Open      Open      Pins 1     Open
                                                         & 2

         IRQ5         Disabled     Pins 2     Open      Open       Open
                                    & 3

  Note: Pins designated should be in the closed position.

