
UNIDENTIFIED

AD450 AT I/O CARD

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

[Image]

                            CONNECTIONS

        Purpose          Location         Purpose          Location

  Serial port 1            J1       Game port                J4

  Serial port 2            J3       Parallel port            J5

                         SERIAL PORT CONFIGURATION

    Port 1        Port 2         J2/E           J2/F            J2/G
     (J1)         (J3)

     COM1         COM3        Pins 2 & 3        Open          Pins 1 & 2
                                closed                         closed

     COM1         COM4        Pins 1 & 2        Open          Pins 1 & 2
                                closed                         closed

     COM4         COM3        Pins 2 & 3        Open          Pins 2 & 3
                                closed                         closed

     COM4         COM4        Pins 1 & 2        Open          Pins 2 & 3
                                closed                         closed

     COM2          N/A           N/A          Pins 2 & 3         N/A
                                               closed

     N/A          COM2           N/A          Pins 1 & 2         N/A
                                               closed

                      SERIAL PORT INTERRUPT SELECTION

     Port 1(J1)        Port 2 (J3)          J2/C               J2/D

         IRQ4            IRQ3            Pins 1 & 2        Pins 2 & 3
                                           closed             closed

          IRQ3            IRQ4            Pins 2 & 3        Pins 1 & 2
                                           closed             closed

       PARALLEL PORT CONFIGURATION

         LPT                 J2/B

          2           Pins 1 & 2 closed

          3           Pins 2 7 3 closed

    PARALLEL PORT INTERRUPT SELECTION

         IRQ                 J2/A

          7           Pins 1 & 2 closed

          5           Pins 2 & 3 closed

