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       # DIAMOND FLOWER, INC.
       
          DIAMOND I/O
       
          Card Type          Multi I/O                                   
          Chipset/Controller National Semiconductor                      
          I/O Options        Parallel port, serial ports (2)             
          Maximum DRAM       N/A                                         
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |      Purpose      | Location |     Purpose      | Location |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |    J1    | Parallel port    |    J3    |
          |-------------------+----------+------------------+----------|
          | Serial port 2     |    J2    |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 SERIAL PORT CONFIGURATION                  |
          |------------------------------------------------------------|
          |  Port 1 (J1)  |  Setting   | SW1/switch 3  | SW1/switch 6  |
          |---------------+------------+---------------+---------------|
          | »   |  COM1   |  Enabled   |      On       |      Off      |
          |-----+---------+------------+---------------+---------------|
          |     |  COM3   |  Disabled  |      Off      |      On       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 SERIAL PORT CONFIGURATION                  |
          |------------------------------------------------------------|
          |  Port 2 (J2)  |  Setting   | SW1/switch 4  | SW1/switch 7  |
          |---------------+------------+---------------+---------------|
          | »   |  COM2   |  Enabled   |      On       |      Off      |
          |-----+---------+------------+---------------+---------------|
          |     |  COM4   |  Disabled  |      Off      |      On       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              SERIAL PORT INTERRUPT SELECTION               |
          |------------------------------------------------------------|
          | Port 1 (J1)  | Port 2 (J2) | SW2/1 | SW2/2 | SW2/3 | SW2/4 |
          |--------------+-------------+-------+-------+-------+-------|
          | »    | IRQ4  |    IRQ3     |  On   |  Off  |  On   |  Off  |
          |------+-------+-------------+-------+-------+-------+-------|
          |      | IRQ3  |    IRQ4     |  Off  |  On   |  Off  |  On   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |       SERIAL PORT NORMAL/FORCED TRUE CONFIGURATION         |
          |------------------------------------------------------------|
          |   Port 1    | Port 2  |         J4         |      J5       |
          |-------------+---------+--------------------+---------------|
          | » | Normal  | Normal  | Pins 2 & 3, 5 & 6, | Pins 2 & 3, 5 |
          |   |         |         |    8 & 9 closed    |  & 6, 8 & 9   |
          |   |         |         |                    |    closed     |
          |---+---------+---------+--------------------+---------------|
          |   | Forced  | Forced  | Pins 1 & 2, 4 & 5, | Pins 1 & 2, 4 |
          |   |  True   |  True   |    7 & 8 closed    |  & 5, 7 & 8   |
          |   |         |         |                    |    closed     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            SERIAL PORT'S DTE/DCE CONFIGURATION             |
          |------------------------------------------------------------|
          |   Primary serial port J1    |   Secondary serial port J2   |
          |-----------------------------+------------------------------|
          |          Jumper J6          |          Jumper J7           |
          |                             |                              |
 (IMG) IMG 2
          |                     | [3][IMG]                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  PARALLEL PORT SETTINGS                    |
          |------------------------------------------------------------|
          |       LPT        |    SW1/switch 1    |    SW1/switch 5    |
          |------------------+--------------------+--------------------|
          | » |      1       |         On         |        Off         |
          |---+--------------+--------------------+--------------------|
          |   |      2       |        Off         |         On         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 PARALLEL PORT INTERRUPTS                   |
          |------------------------------------------------------------|
          |       IRQ        |    SW2/switch 5    |    SW2/switch 6    |
          |------------------+--------------------+--------------------|
          | » |     IRQ7     |         On         |        Off         |
          |---+--------------+--------------------+--------------------|
          |   |     IRQ5     |        Off         |         On         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CLOCK CONFIGURATION                     |
          |------------------------------------------------------------|
          |            Clock             |        SW1/switch 2         |
          |------------------------------+-----------------------------|
          | » |         Enabled          |             On              |
          |---+--------------------------+-----------------------------|
          |   |         Disabled         |             Off             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CLOCK INTERRUPT SELECT                    |
          |------------------------------------------------------------|
          |       IRQ        |    SW2/switch 7    |    SW2/switch 8    |
          |------------------+--------------------+--------------------|
          | » |     IRQ2     |        Off         |         On         |
          |---+--------------+--------------------+--------------------|
          |   |     IRQ5     |         On         |        Off         |
          +------------------------------------------------------------+