(TXT) View Source
       
       # DTK COMPUTER, INC.
       
          PTM-1261C/1661C
       
          Processor    80286                                             
          Processor    12/16MHz                                          
          Speed        
          Chip Set     C & T                                             
          Max. Onboard 5MB                                               
          DRAM         
          Cache        None                                              
          BIOS         DTK                                               
          Dimensions   333mm x 222mm                                     
          I/O Options  Floppy drive interface, game port, IDE interface, 
                       parallel port, PS/2 mouse interface, serial ports 
                       (2)                                               
          NPU Options  80287                                             
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Power LED &       |    J1    | External battery |    J9    |
          | keylock           |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Turbo LED         |    J2    | Serial port 2    |   J10    |
          |-------------------+----------+------------------+----------|
          | Reset switch      |    J3    | Serial port 1    |   J11    |
          |-------------------+----------+------------------+----------|
          | Turbo switch      |    J4    | Parallel port    |   J12    |
          |-------------------+----------+------------------+----------|
          | IDE interface     |    J5    | PS/2 mouse       |   J13    |
          |                   |          | interface        |          |
          |-------------------+----------+------------------+----------|
          | Floppy drive      |    J6    | IDE interface    |   W12    |
          | interface         |          | LED              |          |
          |-------------------+----------+------------------+----------|
          | Game port         |    J7    |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | IDE type select new standard     |  W11   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | IDE type select original         |  W11   | pins 1 & 2 |
          |   | standard (i.e., CP-342)          |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Floppy drive interface (J6)      |  W14   |   Closed   |
          |   | enabled                          |        |            |
          |---+----------------------------------+--------+------------|
          |   | Floppy drive interface (J6)      |  W14   |    Open    |
          |   | disabled                         |        |            |
          |---+----------------------------------+--------+------------|
          | » | IDE interface enabled            |  W21   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | IDE interface disabled           |  W21   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | Game port enabled                |  W22   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Game port disabled               |  W22   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select monochrome   |  W23   |    Open    |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select color        |  W23   |   Closed   |
          |---+----------------------------------+--------+------------|
          | » | Battery select internal          |  W24   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Battery select external          |  W24   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Power good signal detect from    |  W25   | pins 2 & 3 |
          |   | power supply                     |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Power good signal detect from    |  W25   | pins 1 & 2 |
          |   | board                            |        |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  | Bank 0 |  P-0   | Bank 1 |  P-1   | Bank 2 | Bank  |
          |       |        |        |        |        |        |   3   |
          |-------+--------+--------+--------+--------+--------+-------|
          | 512KB |  (4)   |  (2)   |  NONE  |  NONE  |  NONE  | NONE  |
          |       | 44256  | 41256  |        |        |        |       |
          |-------+--------+--------+--------+--------+--------+-------|
          | 640KB |  (4)   |  (2)   |  (2)   |  NONE  |  NONE  | NONE  |
          |       | 44256  | 41256  | 64K x  |        |        |       |
          |       |        |        |   9    |        |        |       |
          |-------+--------+--------+--------+--------+--------+-------|
          |  1MB  |  (4)   |  (2)   |  (4)   |  (2)   |  NONE  | NONE  |
          |       | 44256  | 41256  | 44256  | 41256  |        |       |
          |-------+--------+--------+--------+--------+--------+-------|
          | 1.5MB |  (4)   |  (2)   |  (4)   |  (2)   |  (2)   | NONE  |
          |       | 44256  | 41256  | 44256  | 41256  | 256K x |       |
          |       |        |        |        |        |   9    |       |
          |-------+--------+--------+--------+--------+--------+-------|
          |  2MB  |  (4)   |  (2)   |  (4)   |  (2)   |  (2)   |  (2)  |
          |       | 44256  | 41256  | 44256  | 41256  | 256K x | 256K  |
          |       |        |        |        |        |   9    |  x 9  |
          |-------+--------+--------+--------+--------+--------+-------|
          |  2MB  |  NONE  |  NONE  |  NONE  |  NONE  | (2) 1M | NONE  |
          |       |        |        |        |        |  x 9   |       |
          |-------+--------+--------+--------+--------+--------+-------|
          |  3MB  |  (4)   |  (2)   |  (4)   |  (2)   | (2) 1M | NONE  |
          |       | 44256  | 41256  | 44256  | 41256  |  x 9   |       |
          |-------+--------+--------+--------+--------+--------+-------|
          |  4MB  |  NONE  |  NONE  |  NONE  |  NONE  | (2) 1M |  (2)  |
          |       |        |        |        |        |  x 9   | 1M x  |
          |       |        |        |        |        |        |   9   |
          |-------+--------+--------+--------+--------+--------+-------|
          |  5MB  |  (4)   |  (2)   |  (4)   |  (2)   | (2) 1M |  (2)  |
          |       | 44256  | 41256  | 44256  | 41256  |  x 9   | 1M x  |
          |       |        |        |        |        |        |   9   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM JUMPER CONFIGURATION                  |
          |------------------------------------------------------------|
          |  Size  |   W1   |   W2   |   W3   |   W4   |  W5   |  W6   |
          |--------+--------+--------+--------+--------+-------+-------|
          | 512KB  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2 | 1 & 2 |
          |--------+--------+--------+--------+--------+-------+-------|
          | 640KB  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2 | 1 & 2 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  1MB   | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2 | 1 & 2 |
          |--------+--------+--------+--------+--------+-------+-------|
          | 1.5MB  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3 | 2 & 3 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  2MB   | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3 | 2 & 3 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  2MB   | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2 | 1 & 2 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  3MB   | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3 | 2 & 3 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  4MB   | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2 | 1 & 2 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  5MB   | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3 | 2 & 3 |
          |------------------------------------------------------------|
          | Notes:Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                PARALLEL PORT CONFIGURATION                 |
          |------------------------------------------------------------|
          |   Setting    |        W13        |    W19     |    W20     |
          |--------------+-------------------+------------+------------|
          |     LPT1     | pins 1 & 2 closed |   Closed   |   Closed   |
          |--------------+-------------------+------------+------------|
          |     LPT2     | pins 2 & 3 closed |    Open    |    Open    |
          |--------------+-------------------+------------+------------|
          |   Disabled   |        N/A        |    Open    |   Closed   |
          |--------------+-------------------+------------+------------|
          |   Disabled   |        N/A        |   Closed   |    Open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                SERIAL PORT 1 CONFIGURATION                 |
          |------------------------------------------------------------|
          |   Setting    |        W13        |    W15     |    W16     |
          |--------------+-------------------+------------+------------|
          |     COM1     | pins 1 & 2 closed |   Closed   |   Closed   |
          |--------------+-------------------+------------+------------|
          |     COM3     | pins 2 & 3 closed |    Open    |    Open    |
          |--------------+-------------------+------------+------------|
          |   Disabled   |        N/A        |    Open    |   Closed   |
          |--------------+-------------------+------------+------------|
          |   Disabled   |        N/A        |   Closed   |    Open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                SERIAL PORT 2 CONFIGURATION                 |
          |------------------------------------------------------------|
          |   Setting    |        W13        |    W17     |    W18     |
          |--------------+-------------------+------------+------------|
          |     COM2     | pins 1 & 2 closed |   Closed   |   Closed   |
          |--------------+-------------------+------------+------------|
          |     COM4     | pins 2 & 3 closed |    Open    |    Open    |
          |--------------+-------------------+------------+------------|
          |   Disabled   |        N/A        |    Open    |   Closed   |
          |--------------+-------------------+------------+------------|
          |   Disabled   |        N/A        |   Closed   |    Open    |
          +------------------------------------------------------------+