(TXT) View Source
       
       # DIGI INTERNATIONAL, INC.
       
          PC/8
       
          Card Type               Serial card                            
          Chip Set                Unidentified                           
          Maximum Onboard Memory  Unidentified                           
          I/O Options             Serial ports (8 RS-232),               
          Hard Drives supported   None                                   
          Floppy drives supported None                                   
          Data Bus                8-bit ISA                              
          Card Size               Full-length                            
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |      Function       | Label  |      Function      | Label  |
          |---------------------+--------+--------------------+--------|
          | 78-pin cable        |  CN1   | Daisy chain cable  |   P2   |
          | connector           |        | connector          |        |
          |---------------------+--------+--------------------+--------|
          | Daisy chain cable   |   P1   |                    |        |
          | connector           |        |                    |        |
          |------------------------------------------------------------|
          | Note: Pins 2 & 3 of connectors P1 & P2 are closed when in  |
          | single board configuration.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Function                | Label  | Position |
          |----------------------------------------+--------+----------|
          | » | Factory configured - do not alter  | DS1/8  |    On    |
          |---+------------------------------------+--------+----------|
          | » | Factory configured - do not alter  | DS1/9  |    On    |
          |---+------------------------------------+--------+----------|
          |   | Interrupt status register enabled  | DS1/10 |    On    |
          |---+------------------------------------+--------+----------|
          |   | Interrupt status register disabled | DS1/10 |   Off    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  PORT ENABLING SELECTION                   |
          |------------------------------------------------------------|
          |                 Port                 | Label |  Position   |
          |--------------------------------------+-------+-------------|
          |            Port 1 enabled            | DS2/8 |     On      |
          |--------------------------------------+-------+-------------|
          |           Port 1 disabled            | DS2/8 |     Off     |
          |--------------------------------------+-------+-------------|
          |            Port 2 enabled            | DS3/8 |     On      |
          |--------------------------------------+-------+-------------|
          |           Port 2 disabled            | DS3/8 |     Off     |
          |--------------------------------------+-------+-------------|
          |            Port 3 enabled            | DS4/8 |     On      |
          |--------------------------------------+-------+-------------|
          |           Port 3 disabled            | DS4/8 |     Off     |
          |--------------------------------------+-------+-------------|
          |            Port 4 enabled            | DS5/8 |     On      |
          |--------------------------------------+-------+-------------|
          |           Port 4 disabled            | DS5/8 |     Off     |
          |--------------------------------------+-------+-------------|
          |            Port 5 enabled            | DS6/8 |     On      |
          |--------------------------------------+-------+-------------|
          |           Port 5 disabled            | DS6/8 |     Off     |
          |--------------------------------------+-------+-------------|
          |            Port 6 enabled            | DS7/8 |     On      |
          |--------------------------------------+-------+-------------|
          |           Port 6 disabled            | DS7/8 |     Off     |
          |--------------------------------------+-------+-------------|
          |            Port 7 enabled            | DS8/8 |     On      |
          |--------------------------------------+-------+-------------|
          |           Port 7 disabled            | DS8/8 |     Off     |
          |--------------------------------------+-------+-------------|
          |            Port 8 enabled            | DS9/8 |     On      |
          |--------------------------------------+-------+-------------|
          |           Port 8 disabled            | DS9/8 |     Off     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              BOARD INDENTIFICATION SELECTION               |
          |------------------------------------------------------------|
          |       ID        |         J9          |        J10         |
          |-----------------+---------------------+--------------------|
          | »   |  Board 0  |  Pins 2 & 3 closed  | Pins 2 & 3 closed  |
          |-----+-----------+---------------------+--------------------|
          |     |  Board 1  |  Pins 2 & 3 closed  | Pins 1 & 2 closed  |
          |-----+-----------+---------------------+--------------------|
          |     |  Board 2  |  Pins 1 & 2 closed  | Pins 2 & 3 closed  |
          |-----+-----------+---------------------+--------------------|
          |     |  Board 3  |  Pins 1 & 2 closed  | Pins 1 & 2 closed  |
          |------------------------------------------------------------|
          | Note: The primary board in the daisy chain must remain on  |
          | the default setting.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |   INTTERRUPT STATUS REGISTER BASE I/O ADDRESS SELECTION    |
          |------------------------------------------------------------|
          | Setting | DS1/1 | DS1/2 | DS1/3 |DS1/4 |DS1/5 |DS1/6 |DS1/7|
          |---------+-------+-------+-------+------+------+------+-----|
          |  000h   |  On   |  On   |  On   |  On  |  On  |  On  | On  |
          |---------+-------+-------+-------+------+------+------+-----|
          |  008h   |  On   |  On   |  On   |  On  |  On  |  On  | Off |
          |---------+-------+-------+-------+------+------+------+-----|
          |  010h   |  On   |  On   |  On   |  On  |  On  | Off  | On  |
          |---------+-------+-------+-------+------+------+------+-----|
          |  018h   |  On   |  On   |  On   |  On  |  On  | Off  | Off |
          |---------+-------+-------+-------+------+------+------+-----|
          |  020h   |  On   |  On   |  On   |  On  | Off  |  On  | On  |
          |---------+-------+-------+-------+------+------+------+-----|
          |  3D8h   |  Off  |  Off  |  Off  | Off  |  On  | Off  | Off |
          |---------+-------+-------+-------+------+------+------+-----|
          |  3E0h   |  Off  |  Off  |  Off  | Off  | Off  |  On  | On  |
          |---------+-------+-------+-------+------+------+------+-----|
          |  3E8h   |  Off  |  Off  |  Off  | Off  | Off  |  On  | Off |
          |---------+-------+-------+-------+------+------+------+-----|
          |  3F0h   |  Off  |  Off  |  Off  | Off  | Off  | Off  | On  |
          |---------+-------+-------+-------+------+------+------+-----|
          |  3F8h   |  Off  |  Off  |  Off  | Off  | Off  | Off  | Off |
          |------------------------------------------------------------|
          |Note: A total of 128 base address settings are available.   |
          |The switches are a binary representation of the decimal     |
          |memory addresses. DS1/1 is the Most Significant Bit and     |
          |switch DS1/7 is the Least Significant Bit. The switches have|
          |the following decimal values:DS1/1=512, DS1/2=256,          |
          |DS1/3=128, DS1/4=64, DS1/5=32, DS1/6=16, DS1/7=8. Turn off  |
          |the switches and add the values of the switches to obtain   |
          |the correct memory address. (Off=1, On=0)                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             PORT 1 BASE I/O ADDRESS SELECTION              |
          |------------------------------------------------------------|
          | Setting | DS2/1 | DS2/2 |DS2/3 |DS2/4 |DS2/5 |DS2/6 |DS2/7 |
          |---------+-------+-------+------+------+------+------+------|
          |  000h   |  On   |  On   |  On  |  On  |  On  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  008h   |  On   |  On   |  On  |  On  |  On  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  010h   |  On   |  On   |  On  |  On  |  On  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  018h   |  On   |  On   |  On  |  On  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  020h   |  On   |  On   |  On  |  On  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3D8h   |  Off  |  Off  | Off  | Off  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E0h   |  Off  |  Off  | Off  | Off  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E8h   |  Off  |  Off  | Off  | Off  | Off  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F0h   |  Off  |  Off  | Off  | Off  | Off  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F8h   |  Off  |  Off  | Off  | Off  | Off  | Off  | Off  |
          |------------------------------------------------------------|
          |Note: A total of 128 base address settings are available.   |
          |The switches are a binary representation of the decimal     |
          |memory addresses. DS2/1 is the Most Significant Bit and     |
          |switch DS2/7 is the Least Significant Bit. The switches have|
          |the following decimal values:DS2/1=512, DS2/2=256,          |
          |DS2/3=128, DS2/4=64, DS2/5=32, DS2/6=16, DS2/7=8. Turn off  |
          |the switches and add the values of the switches to obtain   |
          |the correct memory address. (Off=1, On=0)                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             PORT 2 BASE I/O ADDRESS SELECTION              |
          |------------------------------------------------------------|
          | Setting | DS3/1 | DS3/2 |DS3/3 |DS3/4 |DS3/5 |DS3/6 |DS3/7 |
          |---------+-------+-------+------+------+------+------+------|
          |  000h   |  On   |  On   |  On  |  On  |  On  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  008h   |  On   |  On   |  On  |  On  |  On  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  010h   |  On   |  On   |  On  |  On  |  On  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  018h   |  On   |  On   |  On  |  On  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  020h   |  On   |  On   |  On  |  On  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3D8h   |  Off  |  Off  | Off  | Off  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E0h   |  Off  |  Off  | Off  | Off  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E8h   |  Off  |  Off  | Off  | Off  | Off  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F0h   |  Off  |  Off  | Off  | Off  | Off  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F8h   |  Off  |  Off  | Off  | Off  | Off  | Off  | Off  |
          |------------------------------------------------------------|
          |Note: A total of 128 base address settings are available.   |
          |The switches are a binary representation of the decimal     |
          |memory addresses. DS3/1 is the Most Significant Bit and     |
          |switch DS3/7 is the Least Significant Bit. The switches have|
          |the following decimal values:DS3/1=512, DS3/2=256,          |
          |DS3/3=128, DS3/4=64, DS3/5=32, DS3/6=16, DS3/7=8. Turn off  |
          |the switches and add the values of the switches to obtain   |
          |the correct memory address. (Off=1, On=0)                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             PORT 3 BASE I/O ADDRESS SELECTION              |
          |------------------------------------------------------------|
          | Setting | DS4/1 | DS4/2 |DS4/3 |DS4/4 |DS4/5 |DS4/6 |DS4/7 |
          |---------+-------+-------+------+------+------+------+------|
          |  000h   |  On   |  On   |  On  |  On  |  On  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  008h   |  On   |  On   |  On  |  On  |  On  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  010h   |  On   |  On   |  On  |  On  |  On  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  018h   |  On   |  On   |  On  |  On  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  020h   |  On   |  On   |  On  |  On  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3D8h   |  Off  |  Off  | Off  | Off  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E0h   |  Off  |  Off  | Off  | Off  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E8h   |  Off  |  Off  | Off  | Off  | Off  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F0h   |  Off  |  Off  | Off  | Off  | Off  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F8h   |  Off  |  Off  | Off  | Off  | Off  | Off  | Off  |
          |------------------------------------------------------------|
          |Note: A total of 128 base address settings are available.   |
          |The switches are a binary representation of the decimal     |
          |memory addresses. DS4/1 is the Most Significant Bit and     |
          |switch DS4/7 is the Least Significant Bit. The switches have|
          |the following decimal values:DS4/1=512, DS4/2=256,          |
          |DS4/3=128, DS4/4=64, DS4/5=32, DS4/6=16, DS4/7=8. Turn off  |
          |the switches and add the values of the switches to obtain   |
          |the correct memory address. (Off=1, On=0)                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             PORT 4 BASE I/O ADDRESS SELECTION              |
          |------------------------------------------------------------|
          | Setting | DS5/1 | DS5/2 |DS5/3 |DS5/4 |DS5/5 |DS5/6 |DS5/7 |
          |---------+-------+-------+------+------+------+------+------|
          |  000h   |  On   |  On   |  On  |  On  |  On  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  008h   |  On   |  On   |  On  |  On  |  On  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  010h   |  On   |  On   |  On  |  On  |  On  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  018h   |  On   |  On   |  On  |  On  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  020h   |  On   |  On   |  On  |  On  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3D8h   |  Off  |  Off  | Off  | Off  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E0h   |  Off  |  Off  | Off  | Off  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E8h   |  Off  |  Off  | Off  | Off  | Off  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F0h   |  Off  |  Off  | Off  | Off  | Off  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F8h   |  Off  |  Off  | Off  | Off  | Off  | Off  | Off  |
          |------------------------------------------------------------|
          |Note: A total of 128 base address settings are available.   |
          |The switches are a binary representation of the decimal     |
          |memory addresses. DS5/1 is the Most Significant Bit and     |
          |switch DS5/7 is the Least Significant Bit. The switches have|
          |the following decimal values:DS5/1=512, DS5/2=256,          |
          |DS5/3=128, DS5/4=64, DS5/5=32, DS5/6=16, DS5/7=8. Turn off  |
          |the switches and add the values of the switches to obtain   |
          |the correct memory address. (Off=1, On=0)                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             PORT 5 BASE I/O ADDRESS SELECTION              |
          |------------------------------------------------------------|
          | Setting | DS6/1 | DS6/2 |DS6/3 |DS6/4 |DS6/5 |DS6/6 |DS6/7 |
          |---------+-------+-------+------+------+------+------+------|
          |  000h   |  On   |  On   |  On  |  On  |  On  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  008h   |  On   |  On   |  On  |  On  |  On  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  010h   |  On   |  On   |  On  |  On  |  On  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  018h   |  On   |  On   |  On  |  On  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  020h   |  On   |  On   |  On  |  On  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3D8h   |  Off  |  Off  | Off  | Off  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E0h   |  Off  |  Off  | Off  | Off  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E8h   |  Off  |  Off  | Off  | Off  | Off  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F0h   |  Off  |  Off  | Off  | Off  | Off  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F8h   |  Off  |  Off  | Off  | Off  | Off  | Off  | Off  |
          |------------------------------------------------------------|
          |Note: A total of 128 base address settings are available.   |
          |The switches are a binary representation of the decimal     |
          |memory addresses. DS6/1 is the Most Significant Bit and     |
          |switch DS6/7 is the Least Significant Bit. The switches have|
          |the following decimal values:DS6/1=512, DS6/2=256,          |
          |DS6/3=128, DS6/4=64, DS6/5=32, DS6/6=16, DS6/7=8. Turn off  |
          |the switches and add the values of the switches to obtain   |
          |the correct memory address. (Off=1, On=0)                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             PORT 6 BASE I/O ADDRESS SELECTION              |
          |------------------------------------------------------------|
          | Setting | DS7/1 | DS7/2 |DS7/3 |DS7/4 |DS7/5 |DS7/6 |DS7/7 |
          |---------+-------+-------+------+------+------+------+------|
          |  000h   |  On   |  On   |  On  |  On  |  On  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  008h   |  On   |  On   |  On  |  On  |  On  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  010h   |  On   |  On   |  On  |  On  |  On  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  018h   |  On   |  On   |  On  |  On  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  020h   |  On   |  On   |  On  |  On  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3D8h   |  Off  |  Off  | Off  | Off  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E0h   |  Off  |  Off  | Off  | Off  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E8h   |  Off  |  Off  | Off  | Off  | Off  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F0h   |  Off  |  Off  | Off  | Off  | Off  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F8h   |  Off  |  Off  | Off  | Off  | Off  | Off  | Off  |
          |------------------------------------------------------------|
          |Note: A total of 128 base address settings are available.   |
          |The switches are a binary representation of the decimal     |
          |memory addresses. DS7/1 is the Most Significant Bit and     |
          |switch DS7/7 is the Least Significant Bit. The switches have|
          |the following decimal values:DS7/1=512, DS7/2=256,          |
          |DS7/3=128, DS7/4=64, DS7/5=32, DS7/6=16, DS7/7=8. Turn off  |
          |the switches and add the values of the switches to obtain   |
          |the correct memory address. (Off=1, On=0)                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             PORT 7 BASE I/O ADDRESS SELECTION              |
          |------------------------------------------------------------|
          | Setting | DS8/1 | DS8/2 |DS8/3 |DS8/4 |DS8/5 |DS8/6 |DS8/7 |
          |---------+-------+-------+------+------+------+------+------|
          |  000h   |  On   |  On   |  On  |  On  |  On  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  008h   |  On   |  On   |  On  |  On  |  On  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  010h   |  On   |  On   |  On  |  On  |  On  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  018h   |  On   |  On   |  On  |  On  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  020h   |  On   |  On   |  On  |  On  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3D8h   |  Off  |  Off  | Off  | Off  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E0h   |  Off  |  Off  | Off  | Off  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E8h   |  Off  |  Off  | Off  | Off  | Off  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F0h   |  Off  |  Off  | Off  | Off  | Off  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F8h   |  Off  |  Off  | Off  | Off  | Off  | Off  | Off  |
          |------------------------------------------------------------|
          |Note: A total of 128 base address settings are available.   |
          |The switches are a binary representation of the decimal     |
          |memory addresses. DS8/1 is the Most Significant Bit and     |
          |switch DS8/7 is the Least Significant Bit. The switches have|
          |the following decimal values:DS8/1=512, DS8/2=256,          |
          |DS8/3=128, DS8/4=64, DS8/5=32, DS8/6=16, DS8/7=8. Turn off  |
          |the switches and add the values of the switches to obtain   |
          |the correct memory address. (Off=1, On=0)                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             PORT 8 BASE I/O ADDRESS SELECTION              |
          |------------------------------------------------------------|
          | Setting | DS9/1 | DS9/2 |DS9/3 |DS9/4 |DS9/5 |DS9/6 |DS9/7 |
          |---------+-------+-------+------+------+------+------+------|
          |  000h   |  On   |  On   |  On  |  On  |  On  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  008h   |  On   |  On   |  On  |  On  |  On  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  010h   |  On   |  On   |  On  |  On  |  On  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  018h   |  On   |  On   |  On  |  On  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  020h   |  On   |  On   |  On  |  On  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3D8h   |  Off  |  Off  | Off  | Off  |  On  | Off  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E0h   |  Off  |  Off  | Off  | Off  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E8h   |  Off  |  Off  | Off  | Off  | Off  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F0h   |  Off  |  Off  | Off  | Off  | Off  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F8h   |  Off  |  Off  | Off  | Off  | Off  | Off  | Off  |
          |------------------------------------------------------------|
          |Note: A total of 128 base address settings are available.   |
          |The switches are a binary representation of the decimal     |
          |memory addresses. DS9/1 is the Most Significant Bit and     |
          |switch DS9/7 is the Least Significant Bit. The switches have|
          |the following decimal values:DS9/1=512, DS9/2=256,          |
          |DS9/3=128, DS9/4=64, DS9/5=32, DS9/6=16, DS9/7=8. Turn off  |
          |the switches and add the values of the switches to obtain   |
          |the correct memory address. (Off=1, On=0)                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              SERIAL PORT INTERRUPT SELECTION               |
          |------------------------------------------------------------|
          | IRQ  |  J85   |  J86   |  J87   |  J88   |  J89   |  J90   |
          |------+--------+--------+--------+--------+--------+--------|
          | IRQ2 |  Open  |  Open  |  Open  |  Open  |  Open  | Closed |
          |------+--------+--------+--------+--------+--------+--------|
          | IRQ3 | Closed |  Open  |  Open  |  Open  |  Open  |  Open  |
          |------+--------+--------+--------+--------+--------+--------|
          | IRQ4 |  Open  |  Open  |  Open  |  Open  | Closed |  Open  |
          |------+--------+--------+--------+--------+--------+--------|
          | IRQ5 |  Open  | Closed |  Open  |  Open  |  Open  |  Open  |
          |------+--------+--------+--------+--------+--------+--------|
          | IRQ6 |  Open  |  Open  |  Open  | Closed |  Open  |  Open  |
          |------+--------+--------+--------+--------+--------+--------|
          | IRQ7 |  Open  |  Open  | Closed |  Open  |  Open  |  Open  |
          |------------------------------------------------------------|
          | Note: Ports 1-8 must be set to accept either an odd or     |
          | even interrupt. J1-J8 corresponds to ports 1-8. Place      |
          | jumper on pins 1 & 2 for an odd interrupt or pins 2 & 3    |
          | for an even interrupt.                                     |
          +------------------------------------------------------------+