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

   RS-232 DUAL I/O SHORT CARD

   Card Type               Serial controller                      
   Chip Set                Unidentified                           
   I/O Options             Serial ports (2)                       
   Hard Drives supported   None                                   
   Floppy drives supported None                                   
   Data Bus                8-bit ISA                              
   Card Size               Half-length                            

<gopher://bitreich.org/I/th99/i/U-Z/54756-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function       | Label |      Function       | Label |
   |----------------------+-------+---------------------+-------|
   | Serial Port 1        |  CN1  | Serial Port 2       |  CN2  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SERIAL PORTS CONFIGURATION                 |
   |------------------------------------------------------------|
   | Setting            | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 |
   |--------------------+-------+-------+-------+-------+-------|
   |>> | Port 1=COM2    |  Off  |  Off  |  Off  |  Off  |  Off  |
   |   | Port 2=COM1    |       |       |       |       |       |
   |---+----------------+-------+-------+-------+-------+-------|
   |   | Port 1=COM1    |  On   |  Off  |  Off  |  Off  |  On   |
   |   | Port           |       |       |       |       |       |
   |   | 2=disabled     |       |       |       |       |       |
   |---+----------------+-------+-------+-------+-------+-------|
   |   | Port 1=COM2    |  Off  |  Off  |  Off  |  Off  |  Off  |
   |   | Port           |       |       |       |       |       |
   |   | 2=disabled     |       |       |       |       |       |
   |---+----------------+-------+-------+-------+-------+-------|
   |   | Port 1=COM1    |  On   |  On   |  Off  |  Off  |  On   |
   |   | Port 2=COM2    |       |       |       |       |       |
   |---+----------------+-------+-------+-------+-------+-------|
   |   | Port 1=COM3    |  Off  |  Off  |  On   |  On   |  Off  |
   |   | Port 2=COM4    |       |       |       |       |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORTS CONFIGURATION (CON'T)             |
   |------------------------------------------------------------|
   | Setting           | SW1/6 | SW1/7 | SW1/8 | SW1/9 | SW1/10 |
   |-------------------+-------+-------+-------+-------+--------|
   |>> | Port 1=COM2   |  On   |  On   |  Off  |  On   |   On   |
   |   | Port 2=COM1   |       |       |       |       |        |
   |---+---------------+-------+-------+-------+-------+--------|
   |   | Port 1=COM1   |  Off  |  Off  |  Off  |  Off  |  Off   |
   |   | Port          |       |       |       |       |        |
   |   | 2=disabled    |       |       |       |       |        |
   |---+---------------+-------+-------+-------+-------+--------|
   |   | Port 1=COM2   |  On   |  Off  |  Off  |  On   |  Off   |
   |   | Port          |       |       |       |       |        |
   |   | 2=disabled    |       |       |       |       |        |
   |---+---------------+-------+-------+-------+-------+--------|
   |   | Port 1=COM1   |  Off  |  Off  |  On   |  Off  |  Off   |
   |   | Port 2=COM2   |       |       |       |       |        |
   |---+---------------+-------+-------+-------+-------+--------|
   |   | Port 1=COM3   |  Off  |  Off  |  Off  |  Off  |  Off   |
   |   | Port 2=COM4   |       |       |       |       |        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 1 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |        IRQ         |       SW1/5       |       SW1/6       |
   |--------------------+-------------------+-------------------|
   |        IRQ4        |        On         |        Off        |
   |--------------------+-------------------+-------------------|
   |        IRQ3        |        Off        |        On         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 2 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |        IRQ         |       SW1/7        |      SW1/8       |
   |--------------------+--------------------+------------------|
   |        IRQ3        |        Off         |        On        |
   |--------------------+--------------------+------------------|
   |        IRQ4        |         On         |       Off        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               MISCELLANEOUS TECHNICAL NOTES                |
   |------------------------------------------------------------|
   | If the computer already has serial ports installed the     |
   | default settings will not work.                            |
   +------------------------------------------------------------+