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

   A-101 AT I/O CARD

   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/50293-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose      | Location |     Purpose      | Location |
   |-------------------+----------+------------------+----------|
   | Serial port 2     |   CN1    | Game port        |   CN3    |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |   CN2    | Parallel port    |   CN4    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SERIAL PORT CONFIGURATION                  |
   |------------------------------------------------------------|
   |   Port 1 (CN2)   | Port 2 (CN1)  |    S1/A    |    S1/B    |
   |------------------+---------------+------------+------------|
   |>>   |    COM1    |     COM2      |    Open    |    Open    |
   |-----+------------+---------------+------------+------------|
   |     |    COM2    |     COM3      |   Closed   |    Open    |
   |-----+------------+---------------+------------+------------|
   |     |    COM3    |     COM4      |   Closed   |   Closed   |
   |-----+------------+---------------+------------+------------|
   |     |    COM3    |   Disabled    |    Open    |   Closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT INTERRUPT SELECT                |
   |------------------------------------------------------------|
   |      Port 1 (CN2)      |      S2/C       |      S2/D       |
   |------------------------+-----------------+-----------------|
   |>>   |       IRQ4       |     Closed      |      Open       |
   |-----+------------------+-----------------+-----------------|
   |     |       IRQ3       |      Open       |     Closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT INTERRUPT SELECT                |
   |------------------------------------------------------------|
   |      Port 2 (CN1)      |      S2/E       |      S2/F       |
   |------------------------+-----------------+-----------------|
   |>>   |       IRQ3       |      Open       |     Closed      |
   |-----+------------------+-----------------+-----------------|
   |     |       IRQ4       |     Closed      |      Open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                PARALLEL PORT CONFIGURATION                 |
   |------------------------------------------------------------|
   |             LPT             |             S1/C             |
   |-----------------------------+------------------------------|
   |              1              |             Open             |
   |-----------------------------+------------------------------|
   |              2              |            Closed            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               PARALLEL PORT INTERRUPT SELECT               |
   |------------------------------------------------------------|
   |         IRQ          |       S2/A       |       S2/B       |
   |----------------------+------------------+------------------|
   |>>  |      IRQ7       |      Closed      |       Open       |
   |----+-----------------+------------------+------------------|
   |    |      IRQ5       |       Open       |      Closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                FACTORY CONFIGURED SETTINGS                 |
   |------------------------------------------------------------|
   |            Switch            |           Setting           |
   |------------------------------+-----------------------------|
   |             S1/D             |             N/A             |
   +------------------------------------------------------------+