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       # DATA TECHNOLOGY CORPORATION
       
          DTC2278D (400544-89A)
       
          Card Type               Hard drive controller card             
          Data-bus                32-bit VESA Local Bus                  
          Size                    Full-length, half-height card          
          Hard drives supported   Four IDE(AT) interface drives          
          Floppy drives supported Two 360KB, 720KB, 1.2MB, 1.44MB drives 
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |       Function       | Label |      Function       | Label |
          |----------------------+-------+---------------------+-------|
          | Drive active LED     |  J1   | 16-pin game port -  |  J5   |
          |                      |       | internal            |       |
          |----------------------+-------+---------------------+-------|
          | 40-pin IDE(AT)       |  J2   | 9-pin serial port 1 |  J6   |
          | primary interface    |       | - external          |       |
          | connector            |       |                     |       |
          |----------------------+-------+---------------------+-------|
          | 40-pin IDE(AT)       |  J3   | 10-pin serial port  |  J7   |
          | secondary interface  |       | 2 - internal        |       |
          | connector            |       |                     |       |
          |----------------------+-------+---------------------+-------|
          | 34-pin control cable |  J4   | 25-pin parallel     |  J8   |
          | connector - floppy   |       | port - external     |       |
          | drive                |       |                     |       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               USER CONFIGURABLE CONNECTIONS                |
          |------------------------------------------------------------|
          |               Function                | Location | Setting |
          |---------------------------------------+----------+---------|
          | » | Floppy drive interface enabled    |    W2    |  Open   |
          |---+-----------------------------------+----------+---------|
          |   | Floppy drive interface disabled   |    W2    | Closed  |
          |---+-----------------------------------+----------+---------|
          | » | Parallel port is uni-directional  |    W3    | Closed  |
          |---+-----------------------------------+----------+---------|
          |   | Parallel port is bi-directional   |    W3    |  Open   |
          |---+-----------------------------------+----------+---------|
          | » | Game port enabled                 |    W4    |  Open   |
          |---+-----------------------------------+----------+---------|
          |   | Game port disabled                |    W4    | Closed  |
          |---+-----------------------------------+----------+---------|
          | » | Parallel port address is 378h     |    W5    |  Open   |
          |   | (LPT1)                            |          |         |
          |---+-----------------------------------+----------+---------|
          |   | Parallel port address is 278      |    W5    | Closed  |
          |   | (LPT2)                            |          |         |
          |---+-----------------------------------+----------+---------|
          | » | Serial port 1 address is 3F8h     |    W6    |  Open   |
          |   | (COM1)                            |          |         |
          |---+-----------------------------------+----------+---------|
          |   | Serial port 1 address is 3E8h     |    W6    | Closed  |
          |   | (COM3)                            |          |         |
          |---+-----------------------------------+----------+---------|
          | » | Serial port 1 enabled             |    W7    |  Open   |
          |---+-----------------------------------+----------+---------|
          |   | Serial port 1 disabled            |    W7    | Closed  |
          |---+-----------------------------------+----------+---------|
          | » | Parallel port enabled             |    W8    |  Open   |
          |---+-----------------------------------+----------+---------|
          |   | Parallel port disabled            |    W8    | Closed  |
          |---+-----------------------------------+----------+---------|
          | » | Serial port 2 address is 2F8h     |    W9    |  Open   |
          |   | (COM2)                            |          |         |
          |---+-----------------------------------+----------+---------|
          |   | Serial port 2 address is 2E8h     |    W9    | Closed  |
          |   | (COM4)                            |          |         |
          |---+-----------------------------------+----------+---------|
          | » | Serial port 2 enabled             |   W10    |  Open   |
          |---+-----------------------------------+----------+---------|
          |   | Serial port 2 disabled            |   W10    | Closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             SERIAL PORT 1 INTERRUPT SELECTION              |
          |------------------------------------------------------------|
          |      IRQ       |     W11      |     W12      |     W13     |
          |----------------+--------------+--------------+-------------|
          |   |    IRQ3    |     Open     |    Closed    |    Open     |
          |---+------------+--------------+--------------+-------------|
          | » |    IRQ4    |    Closed    |     Open     |    Open     |
          |---+------------+--------------+--------------+-------------|
          |   |    IRQ5    |     Open     |     Open     |   Closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             SERIAL PORT 2 INTERRUPT SELECTION              |
          |------------------------------------------------------------|
          |      IRQ       |     W14      |     W15      |     W16     |
          |----------------+--------------+--------------+-------------|
          | » |    IRQ3    |    Closed    |     Open     |    Open     |
          |---+------------+--------------+--------------+-------------|
          |   |    IRQ4    |     Open     |    Closed    |    Open     |
          |---+------------+--------------+--------------+-------------|
          |   |    IRQ5    |     Open     |     Open     |   Closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             PARALLEL PORT INTERRUPT SELECTION              |
          |------------------------------------------------------------|
          |          IRQ          |       W17        |       W18       |
          |-----------------------+------------------+-----------------|
          |     |      IRQ5       |       Open       |     Closed      |
          |-----+-----------------+------------------+-----------------|
          | »   |      IRQ7       |      Closed      |      Open       |
          +------------------------------------------------------------+