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       # DATA TECHNOLOGY CORPORATION
       
          DTC2280 (400485-89C)
       
          Card Type            Hard drive controller card                
          Hard Drives          Two IDE (AT) drives                       
          supported            
          Floppy drives        Two 360KB, 720KB, 1.2MB, or 1.44MB drives 
          supported            
          Data Bus             16-bit ISA                                
          Card Size            Half-length, half-height card             
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |     Function      | Location |     Function     | Location |
          |-------------------+----------+------------------+----------|
          | 9-pin serial port |   CN1    | 10-pin serial    |   JP4    |
          | 1 - external      |          | port 2 -         |          |
          |                   |          | internal         |          |
          |-------------------+----------+------------------+----------|
          | 40-pin primary    |   JP1    | 34-pin cable     |   JP5    |
          | IDE(AT) connector |          | connector -      |          |
          |                   |          | floppy drive     |          |
          |-------------------+----------+------------------+----------|
          | 16-pin game port  |   JP2    | 2-pin connector  |   JP8    |
          |                   |          | - drive active   |          |
          |                   |          | LED              |          |
          |-------------------+----------+------------------+----------|
          | 10-pin serial     |   JP3    | 25-pin parallel  |   JP15   |
          | port 1 - internal |          | port - external  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Function                | Label | Position  |
          |----------------------------------------+-------+-----------|
          | » | Floppy drive order is normal (A:,  | JP6/A | Pins 1 &  |
          |   | B:)                                |       | 2 closed  |
          |---+------------------------------------+-------+-----------|
          |   | Floppy drive order is reversed     | JP6/A | Pins 2 &  |
          |   | (B:, A:)                           |       | 3 closed  |
          |---+------------------------------------+-------+-----------|
          | » | Floppy drive address 3F0h          | JP6/B | Pins 2 &  |
          |   |                                    |       | 3 closed  |
          |---+------------------------------------+-------+-----------|
          |   | Floppy drive address 370h          | JP6/B | Pins 1 &  |
          |   |                                    |       | 2 closed  |
          |---+------------------------------------+-------+-----------|
          | » | IDE interface enabled              | JP6/C | Pins 1 &  |
          |   |                                    |       | 2 closed  |
          |---+------------------------------------+-------+-----------|
          |   | IDE interface disabled             | JP6/C | Pins 2 &  |
          |   |                                    |       | 3 closed  |
          |---+------------------------------------+-------+-----------|
          | » | IDE address is 170h                | JP6/D | Pins 1 &  |
          |   |                                    |       | 2 closed  |
          |---+------------------------------------+-------+-----------|
          |   | IDE address is 1F0h                | JP6/D | Pins 2 &  |
          |   |                                    |       | 3 closed  |
          |---+------------------------------------+-------+-----------|
          | » | Floppy drive interface enabled     | JP6/E | Pins 1 &  |
          |   |                                    |       | 2 closed  |
          |---+------------------------------------+-------+-----------|
          |   | Floppy drive interface disabled    | JP6/E | Pins 2 &  |
          |   |                                    |       | 3 closed  |
          |---+------------------------------------+-------+-----------|
          | » | Game port enabled                  | JP16  |  Closed   |
          |---+------------------------------------+-------+-----------|
          |   | Game port disabled                 | JP16  |   Open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                IDEIOR/IDEIOW PATH SELECTION                |
          |------------------------------------------------------------|
          |          Path          |    Label     |      Position      |
          |------------------------+--------------+--------------------|
          | » |     ATBUS IOR      |      J1      | Pins 2 & 3 closed  |
          |---+--------------------+--------------+--------------------|
          |   |   W83758P—IOROP    |      J1      | Pins 1 & 2 closed  |
          |---+--------------------+--------------+--------------------|
          | » |     ATBUS IOW      |      J2      | Pins 2 & 3 closed  |
          |---+--------------------+--------------+--------------------|
          |   |   W83758P—IOWOP    |      J2      | Pins 1 & 2 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              PARALLEL PORT ADDRESS SELECTION               |
          |------------------------------------------------------------|
          |     Setting      |       JP9/E        |       JP9/F        |
          |------------------+--------------------+--------------------|
          | » | LPT1 (378h)  | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
          |---+--------------+--------------------+--------------------|
          |   | LPT2 (278h)  | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   | LPT3 (3BCh)  | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              SERIAL PORT 1 ADDRESS SELECTION               |
          |------------------------------------------------------------|
          |     Setting      |       JP9/A        |       JP9/B        |
          |------------------+--------------------+--------------------|
          | » | COM1 (3F8h)  | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   | COM3 (3E8h)  | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
          |---+--------------+--------------------+--------------------|
          |   |   Disabled   | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              SERIAL PORT 2 ADDRESS SELECTION               |
          |------------------------------------------------------------|
          |     Setting      |       JP9/C        |       JP9/D        |
          |------------------+--------------------+--------------------|
          | » | COM2 (2F8h)  | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   | COM4 (2E8h)  | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
          |---+--------------+--------------------+--------------------|
          |   |   Disabled   | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             SERIAL PORT 1 INTERRUPT SELECTION              |
          |------------------------------------------------------------|
          |      IRQ       |    JP12/A    |    JP12/B    |   JP12/C    |
          |----------------+--------------+--------------+-------------|
          | » |    IRQ4    |    Closed    |     Open     |    Open     |
          |---+------------+--------------+--------------+-------------|
          |   |    IRQ3    |     Open     |    Closed    |    Open     |
          |---+------------+--------------+--------------+-------------|
          |   |    IRQ5    |     Open     |     Open     |   Closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             SERIAL PORT 2 INTERRUPT SELECTION              |
          |------------------------------------------------------------|
          |      IRQ       |    JP12/D    |    JP12/E    |   JP12/F    |
          |----------------+--------------+--------------+-------------|
          | » |    IRQ3    |    Closed    |     Open     |    Open     |
          |---+------------+--------------+--------------+-------------|
          |   |    IRQ4    |     Open     |    Closed    |    Open     |
          |---+------------+--------------+--------------+-------------|
          |   |    IRQ5    |     Open     |     Open     |   Closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             PARALLEL PORT INTERRUPT SELECTION              |
          |------------------------------------------------------------|
          |          IRQ          |      JP12/G      |     JP12/H      |
          |-----------------------+------------------+-----------------|
          | »   |      IRQ7       |      Closed      |      Open       |
          |-----+-----------------+------------------+-----------------|
          |     |      IRQ5       |       Open       |     Closed      |
          +------------------------------------------------------------+