AST RESEARCH, INC.
==================

   I/O PLUS II

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

<gopher://bitreich.org/I/th99/i/A-B/51237-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |    Purpose     | Location |       Purpose       | Location |
   |----------------+----------+---------------------+----------|
   | Serial port 1  |   CN1    | Apple II game       |    J5    |
   | (DTE)          |          | connector           |          |
   |----------------+----------+---------------------+----------|
   | Serial port 2  |    J2    | Apple II game       |    J6    |
   | (DTE)          |          | connector           |          |
   |----------------+----------+---------------------+----------|
   | Serial port 2  |    J3    | IBM game connector  |    J7    |
   | (DCE)          |          |                     |          |
   |----------------+----------+---------------------+----------|
   | 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              |
   +------------------------------------------------------------+