UNIDENTIFIED
============

   AT MULTI I/O AI-6, AT MULTI I/O AI2SG-6

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

<gopher://bitreich.org/I/th99/i/U-Z/50295-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose      | Location |     Purpose      | Location |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |    J3    | Game port        |    J5    |
   |-------------------+----------+------------------+----------|
   | Serial port 2     |    J4    | Parallel port    |    J6    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SERIAL PORT CONFIGURATION                  |
   |------------------------------------------------------------|
   |  Port 1  |  Port 2  |  J1/1   |  J1/2   |  J1/3   |  J1/4  |
   |   (J3)   |   (J4)   |         |         |         |        |
   |----------+----------+---------+---------+---------+--------|
   |   COM1   |   COM2   | Pins 2  | Pins 1  | Pins 2  | Pins 1 |
   |          |          |   & 3   |   & 2   |   &3    |  & 2   |
   |          |          | closed  | closed  | closed  | closed |
   |----------+----------+---------+---------+---------+--------|
   |   COM1   |   COM4   | Pins 2  | Pins 1  | Pins 1  | Pins 1 |
   |          |          |   & 3   |   & 2   |   & 2   |  & 2   |
   |          |          | closed  | closed  | closed  | closed |
   |----------+----------+---------+---------+---------+--------|
   |   COM1   | Disabled | Pins 2  | Pins 1  |   N/A   | Pins 2 |
   |          |          |   & 3   |   & 2   |         |  & 3   |
   |          |          | closed  | closed  |         | closed |
   |----------+----------+---------+---------+---------+--------|
   |   COM3   |   COM2   | Pins 1  | Pins 1  | Pins 2  | Pins 1 |
   |          |          |   & 2   |   & 2   |   & 3   |  & 2   |
   |          |          | closed  | closed  | closed  | closed |
   |----------+----------+---------+---------+---------+--------|
   |   COM3   |   COM4   | Pins 1  | Pins 1  | Pins 1  | Pins 1 |
   |          |          |   & 2   |   & 2   |   & 2   |  & 2   |
   |          |          | closed  | closed  | closed  | closed |
   |----------+----------+---------+---------+---------+--------|
   |   COM3   | Disabled | Pins 1  | Pins 1  |   N/A   | Pins 2 |
   |          |          |   & 2   |   & 2   |         |  & 3   |
   |          |          | closed  | closed  |         | closed |
   |----------+----------+---------+---------+---------+--------|
   | Disabled | Disabled |   N/A   | Pins 2  |   N/A   | Pins 2 |
   |          |          |         |   & 3   |         |  & 3   |
   |          |          |         | closed  |         | closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT INTERRUPT SELECT                |
   |------------------------------------------------------------|
   |  Port 1   |    J2/1    |   J2/2    |   J2/3    |   J2/4    |
   |   (J3)    |            |           |           |           |
   |-----------+------------+-----------+-----------+-----------|
   |>> | IRQ4  | Pins 1 & 2 |    N/A    |    N/A    |    N/A    |
   |   |       |   closed   |           |           |           |
   |---+-------+------------+-----------+-----------+-----------|
   |   | IRQ3  |    N/A     | Pins 1& 2 |    N/A    |    N/A    |
   |   |       |            |  closed   |           |           |
   |---+-------+------------+-----------+-----------+-----------|
   |   | IRQ5  |    N/A     |    N/A    | Pins 1 &  |    N/A    |
   |   |       |            |           | 2 closed  |           |
   |---+-------+------------+-----------+-----------+-----------|
   |   | IRQ9  |    N/A     |    N/A    |    N/A    | Pins 1 &  |
   |   |       |            |           |           | 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT INTERRUPT SELECT                |
   |------------------------------------------------------------|
   |  Port 2   |    J2/1    |   J2/2    |   J2/3    |   J2/4    |
   |   (J4)    |            |           |           |           |
   |-----------+------------+-----------+-----------+-----------|
   |>> | IRQ3  |    N/A     | Pins 2 &  |    N/A    |    N/A    |
   |   |       |            | 3 closed  |           |           |
   |---+-------+------------+-----------+-----------+-----------|
   |   | IRQ4  | Pins 2 & 3 |    N/A    |    N/A    |    N/A    |
   |   |       |   closed   |           |           |           |
   |---+-------+------------+-----------+-----------+-----------|
   |   | IRQ5  |    N/A     |    N/A    | Pins 2 &  |    N/A    |
   |   |       |            |           | 3 closed  |           |
   |---+-------+------------+-----------+-----------+-----------|
   |   | IRQ9  |    N/A     |    N/A    |    N/A    | Pins 2 &  |
   |   |       |            |           |           | 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                PARALLEL PORT CONFIGURATION                 |
   |------------------------------------------------------------|
   |       LPT        |        J1/5        |        J1/6        |
   |------------------+--------------------+--------------------|
   |>> |      1       | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |      2       | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   |        N/A         | Pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               PARALLEL PORT INTERRUPT SELECT               |
   |------------------------------------------------------------|
   |            IRQ             |             J2/5              |
   |----------------------------+-------------------------------|
   |>>  |         IRQ7          |       Pins 2 & 3 closed       |
   |----+-----------------------+-------------------------------|
   |    |         IRQ5          |       Pins 1 & 2 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  GAME PORT CONFIGURATION                   |
   |------------------------------------------------------------|
   |            Port            |             J1/7              |
   |----------------------------+-------------------------------|
   |          Enabled           |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |          Disabled          |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+