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       # DIGI INTERNATIONAL, INC.
       
          PC/16
       
          Card Type         Serial                                       
          Chipset           Unidentified                                 
          I/O Options       Serial ports (16)                            
          Data Bus          8-bit ISA                                    
          Card Size         Full height, full length                     
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |      Function       | Label  |      Function       | Label |
          |---------------------+--------+---------------------+-------|
          | Serial ports via    |   P1   | Interrupt daisy     |  P3   |
          | ribbon cable        |        | chain connector     |       |
          |---------------------+--------+---------------------+-------|
          | Serial ports via    |   P2   |                     |       |
          | ribbon cable        |        |                     |       |
          |------------------------------------------------------------|
          |      Note:Standard RJ-45 serial ports are provided on an   |
          |      external expansion box.                               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Setting                 | Label | Position  |
          |----------------------------------------+-------+-----------|
          | » | Board is not daisy-chained or is   |  J7   | Pins 1 &  |
          |   | daisy-chained and is board 0       |       | 2 closed  |
          |---+------------------------------------+-------+-----------|
          |   | Board is daisy-chained and is      |  J7   | Pins 2 &  |
          |   | board 1                            |       | 3 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    INTERRUPT SELECTION                     |
          |------------------------------------------------------------|
          |Setting |   J1   |   J2   |   J3   |   J4   |  J5   |  J6   |
          |--------+--------+--------+--------+--------+-------+-------|
          |   2    | Closed |  Open  |  Open  |  Open  | Open  | Open  |
          |--------+--------+--------+--------+--------+-------+-------|
          |   3    |  Open  | Closed |  Open  |  Open  | Open  | Open  |
          |--------+--------+--------+--------+--------+-------+-------|
          |   4    |  Open  |  Open  | Closed |  Open  | Open  | Open  |
          |--------+--------+--------+--------+--------+-------+-------|
          |   5    |  Open  |  Open  |  Open  | Closed | Open  | Open  |
          |--------+--------+--------+--------+--------+-------+-------|
          |   6    |  Open  |  Open  |  Open  |  Open  |Closed | Open  |
          |--------+--------+--------+--------+--------+-------+-------|
          |   7    |  Open  |  Open  |  Open  |  Open  | Open  |Closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 BASE I/O ADDRESS SELECTION                 |
          |------------------------------------------------------------|
          |      Setting      |        U46         |        U58        |
          |-------------------+--------------------+-------------------|
          |    100h - 187h    |   PAL #40000247    |   PAL #40000246   |
          |-------------------+--------------------+-------------------|
          |   130h - 16Fh,    |   PAL #40000239    |   PAL #40000238   |
          | 188h, 1B0h - 1EFh |                    |                   |
          |-------------------+--------------------+-------------------|
          |    188h - 26Fh    |   PAL #40000249    |   PAL #40000248   |
          |-------------------+--------------------+-------------------|
          |   230h - 26Fh,    |   PAL #40000241    |   PAL #40000240   |
          | 289h, 2B0h - 2EFh |                    |                   |
          |------------------------------------------------------------|
          |      Note:The base I/O address is fixed by the programmed  |
          |      array logic chips installed in U46 and U58.           |
          +------------------------------------------------------------+