AST RESEARCH, INC.

I/O PLUS II

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

[Image]

                                CONNECTIONS

        Purpose          Location            Purpose           Location

  Serial port 1 (DTE)       CN1       Apple II game               J5
                                      connector

  Serial port 2 (DTE)       J2        Apple II game               J6
                                      connector

  Serial port 2 (DCE)       J3        IBM game connector          J7

  Parallel port             J4

                     SERIAL 1 PORT CONFIGURATION

    COM         IRQ        J8/A       J8/B        J9/D       J9/E

   COM 1         4        Closed      Open       Closed      Open

   COM 2         3         Open      Closed       Open      Closed

  Disabled      N/A        Open       Open        Open       Open

          SERIAL PORT 2 CONFIGURATION

  Setting       IRQ        J8/C        J9/F

  Enabled       3S        Closed      Closed

  Disabled      N/A        Open        Open

   SERIAL PORT 2 DTE/DCE CONFIGURATION

       Setting               C16

         DCE          Pins 3 & 4 closed

         DTE          Pins 1 & 2 closed

                PARALLEL PORT CONFIGURATION

    Port        IRQ        J8/D        J8/E        J9/A

  1 (LPT1)       7         Open       Closed      Closed

  2 (LPT2)       7        Closed       Open       Closed

  Disabled      N/A        Open        Open        Open

                          GAME PORT CONFIGURATION

               Setting                                J8/F

               Enabled                               Closed

               Disabled                               Open

       Note: There are two types of game ports on this card, an IBM &
       Apple type. When enabling the Apple game port (2) you must install
       a chip (74LS05) at U1. This chip must be removed when enabling the
       IBM game port.

  FACTORY CONFIGURED - DO NOT ALTER

      Jumper            Position

       J9/B                N/A

       J9/C                N/A

       J9/G                N/A

       J9/H                N/A