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       # DATA TECHNOLOGY CORPORATION
       
          DTC-3520A (400592-89A)
       
          Card Type               Hard drive controller card             
          Hard Drives supported   Up to 7 SCSI-2 devices                 
          Floppy drives supported None                                   
          Data Bus                16-bit ISA                             
          Card Size               Half-length, half-height card          
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |        Function        | Location |  Function   | Location |
          |------------------------+----------+-------------+----------|
          | 50-pin SCSI connector  |   CN1    | 25-pin SCSI |   CN2    |
          | - internal             |          | connector - |          |
          |                        |          | external    |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          | » | Factory configured - do not     | JP1/A | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Parity bit enable               | JP1/B |    Closed    |
          |---+---------------------------------+-------+--------------|
          |   | Parity bit disable              | JP1/B |     Open     |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     | JP1/C | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     | JP1/F | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     | JP1/G | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     | JP1/H | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     |  JP2  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     |  JP3  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     |  JP4  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | BIOS enabled                    | JP6/A |    Closed    |
          |---+---------------------------------+-------+--------------|
          |   | BIOS disabled                   | JP6/A |     Open     |
          |---+---------------------------------+-------+--------------|
          | » | Port address 340h               | JP6/D |    Closed    |
          |---+---------------------------------+-------+--------------|
          |   | Port address 140h               | JP6/D |     Open     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   BIOS ADDRESS SELECTION                   |
          |------------------------------------------------------------|
          |      Address       |       JP6/B       |       JP6/C       |
          |--------------------+-------------------+-------------------|
          |       C800h        |       Open        |       Open        |
          |--------------------+-------------------+-------------------|
          |       CC00h        |      Closed       |       Open        |
          |--------------------+-------------------+-------------------|
          |       D800h        |       Open        |      Closed       |
          |--------------------+-------------------+-------------------|
          |       DC00h        |      Closed       |      Closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    INTERRUPT SELECTION                     |
          |------------------------------------------------------------|
          | IRQ |  JP1/D  | JP1/E  | JP5/A  | JP5/B  | JP5/C  | JP5/D  |
          |-----+---------+--------+--------+--------+--------+--------|
          |IRQ9 | Closed  | Closed |  Open  |  Open  |  Open  | Closed |
          |-----+---------+--------+--------+--------+--------+--------|
          |IRQ10| Closed  |  Open  |  Open  |  Open  | Closed |  Open  |
          |-----+---------+--------+--------+--------+--------+--------|
          |IRQ11|  Open   | Closed |  Open  | Closed |  Open  |  Open  |
          |-----+---------+--------+--------+--------+--------+--------|
          |IRQ12|  Open   |  Open  | Closed |  Open  |  Open  |  Open  |
          +------------------------------------------------------------+