DIAMOND FLOWER, INC.
====================

   DIO-500

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

<gopher://bitreich.org/I/th99/i/C-D/50214-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose      | Location |     Purpose      | Location |
   |-------------------+----------+------------------+----------|
   | Serial port 2     |    J1    | Serial port 1    |    J3    |
   |-------------------+----------+------------------+----------|
   | Game port         |    J2    | Parallel port    |    J4    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SERIAL PORT CONFIGURATION                  |
   |------------------------------------------------------------|
   | Port 1 (J3)  | Port 2 (J1) | SW1/2 | SW1/3 | SW1/7 | SW1/8 |
   |--------------+-------------+-------+-------+-------+-------|
   |>> |   COM1   |    COM2     |  On   |  On   |  On   |  On   |
   |---+----------+-------------+-------+-------+-------+-------|
   |   |   COM2   |    COM3     |  Off  |  On   |  On   |  On   |
   |---+----------+-------------+-------+-------+-------+-------|
   |   |   COM3   |    COM4     |  On   |  Off  |  On   |  On   |
   |---+----------+-------------+-------+-------+-------+-------|
   |   | Disabled |  Disabled   |  N/A  |  N/A  |  Off  |  Off  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT INTERRUPT SELECTION               |
   |------------------------------------------------------------|
   |  Port 1 (J3)   |  SW2/5   |  SW2/6   |  SW2/7   |  SW2/8   |
   |----------------+----------+----------+----------+----------|
   |>>   |   IRQ4   |   Off    |   Off    |    On    |   Off    |
   |-----+----------+----------+----------+----------+----------|
   |     |   IRQ3   |   Off    |    On    |   Off    |   Off    |
   |-----+----------+----------+----------+----------+----------|
   |     |   IRQ2   |    On    |   Off    |   Off    |   Off    |
   |-----+----------+----------+----------+----------+----------|
   |     |   IRQ5   |   Off    |   Off    |   Off    |    On    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT INTERRUPT SELECTION               |
   |------------------------------------------------------------|
   |  Port 2 (J1)   |  SW2/1   |  SW2/2   |  SW2/3   |  SW2/4   |
   |----------------+----------+----------+----------+----------|
   |>>   |   IRQ3   |   Off    |    On    |   Off    |   Off    |
   |-----+----------+----------+----------+----------+----------|
   |     |   IRQ4   |   Off    |   Off    |    On    |   Off    |
   |-----+----------+----------+----------+----------+----------|
   |     |   IRQ2   |    On    |   Off    |   Off    |   Off    |
   |-----+----------+----------+----------+----------+----------|
   |     |   IRQ5   |   Off    |   Off    |   Off    |    On    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |        SERIAL PORT NORMAL/FORCED TRUE CONFIGURATION        |
   |------------------------------------------------------------|
   |   Port 1    | Port 2  |        JP1         |      JP2      |
   |-------------+---------+--------------------+---------------|
   |>> | Normal  | Normal  | Pins 1 & 2, 4 & 5, | Pins 1 & 2, 4 |
   |   |         |         |    7 & 8 closed    |  & 5, 7 & 8   |
   |   |         |         |                    |    closed     |
   |---+---------+---------+--------------------+---------------|
   |   | Forced  | Forced  | Pins 2 & 3, 5 & 6, | Pins 2 & 3, 5 |
   |   |  True   |  True   |    8 & 9 closed    |  & 6, 8 & 9   |
   |   |         |         |                    |    closed     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            SERIAL PORT'S DTE/DCE CONFIGURATION             |
   |------------------------------------------------------------|
   |   Primary serial port J3    |   Secondary serial port J1   |
   |-----------------------------+------------------------------|
   |         Jumper JP4          |          Jumper JP3          |
   |                             |                              |
<gopher://bitreich.org/I/th99/i/C-D/50214-2.png>
   |                     | [3][IMG]                     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                PARALLEL PORT CONFIGURATION                 |
   |------------------------------------------------------------|
   |   Parallel port    |    LPT    |    SW1/1    |    SW1/5    |
   |--------------------+-----------+-------------+-------------|
   |>>  |    Enabled    |     1     |     Off     |     On      |
   |----+---------------+-----------+-------------+-------------|
   |    |   Disabled    |     2     |     On      |     Off     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             PARALLEL PORT INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |               IRQ               |           JP5            |
   |---------------------------------+--------------------------|
   |>>        |          7           |          Closed          |
   |----------+----------------------+--------------------------|
   |          |          5           |           Open           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  GAME PORT CONFIGURATION                   |
   |------------------------------------------------------------|
   |               Port               |          SW1/4          |
   |----------------------------------+-------------------------|
   |>>  |           Enabled           |           On            |
   |----+-----------------------------+-------------------------|
   |    |          Disabled           |           Off           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             FACTORY CONFIGURED - DO NOT ALTER              |
   |------------------------------------------------------------|
   |           Switch            |           Position           |
   |-----------------------------+------------------------------|
   |            SW1/6            |             N/A              |
   +------------------------------------------------------------+