(TXT) View Source
       
       # DTK COMPUTERS, INC.
       
          PTM-1260B
       
          Processor    80286                                             
          Processor    12MHz                                             
          Speed        
          Chip Set     VLSI                                              
          Max. Onboard 1MB                                               
          DRAM         
          Cache        None                                              
          BIOS         DTK                                               
          Dimensions   330mm x 218mm                                     
          I/O Options  Floppy drive interface, hard drive interface,     
                       parallel port, serial ports (2), video port       
          NPU Options  80287                                             
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Hard drive 1 data |   CN1    | Parallel port    |   CN9    |
          | cable connector   |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Hard drive 1 data |   CN2    | Power LED &      |   JP1    |
          | cable connector   |          | keylock          |          |
          |-------------------+----------+------------------+----------|
          | Hard drive        |   CN3    | Speaker          |   JP3    |
          | interface         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Floppy drive      |   CN4    | Turbo LED        |   JP4    |
          | interface         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Serial port 2     |   CN5    | Turbo switch     |   JP5    |
          |-------------------+----------+------------------+----------|
          | Video port        |   CN7    | IDE interface    |   JP12   |
          |                   |          | LED              |          |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |   CN8    | External battery |   JP20   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP2   |    N/A     |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Zero wait state enabled          |  JP8   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | One wait state enabled           |  JP8   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | Primary hard drive address is    |  JP13  | pins 2 & 3 |
          |   | 1F0h - 1F7h                      |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Secondary hard drive address is  |  JP13  | pins 1 & 2 |
          |   | 170h - 177h                      |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Primary floppy drive address is  |  JP13  | pins 5 & 6 |
          |   | 3F0h - 3F7h                      |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Secondary floppy drive address   |  JP13  | pins 4 & 5 |
          |   | is 370h - 37Fh                   |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | BIOS type select 32KB            |  JP14  |    Open    |
          |---+----------------------------------+--------+------------|
          |   | BIOS type select 64KB            |  JP14  |   Closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP15  |    N/A     |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Monochrome display primary       |  JP22  |    Open    |
          |---+----------------------------------+--------+------------|
          |   | CGA display primary              |  JP22  |   Closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 FLOPPY DRIVE CONFIGURATION                 |
          |------------------------------------------------------------|
          |       Drive       |    JP16     |    JP17     |    JP18    |
          |-------------------+-------------+-------------+------------|
          | » |    Enabled    |   Closed    |   Closed    |   Closed   |
          |---+---------------+-------------+-------------+------------|
          |   |   Disabled    |    Open     |    Open     |    Open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             PRIMARY SERIAL PORT CONFIGURATION              |
          |------------------------------------------------------------|
          |    Port 1 (CN8)    |       JP24        |       JP26        |
          |--------------------+-------------------+-------------------|
          |        COM1        |      Closed       |      Closed       |
          |--------------------+-------------------+-------------------|
          |        COM3        |       Open        |       Open        |
          |--------------------+-------------------+-------------------|
          |      Disabled      |      Closed       |       Open        |
          |--------------------+-------------------+-------------------|
          |      Disabled      |       Open        |      Closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            SECONDARY SERIAL PORT CONFIGURATION             |
          |------------------------------------------------------------|
          |    Port 2 (CN5)    |        JP25        |       JP27       |
          |--------------------+--------------------+------------------|
          |        COM2        |       Closed       |      Closed      |
          |--------------------+--------------------+------------------|
          |        COM4        |        Open        |       Open       |
          |--------------------+--------------------+------------------|
          |      Disabled      |        Open        |      Closed      |
          |--------------------+--------------------+------------------|
          |      Disabled      |       Closed       |       Open       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                PARALLEL PORT CONFIGURATION                 |
          |------------------------------------------------------------|
          |     LPT      |       JP19        |    JP23    |    JP28    |
          |--------------+-------------------+------------+------------|
          |     LPT1     | pins 1 & 2 closed |   Closed   |   Closed   |
          |--------------+-------------------+------------+------------|
          |     LPT2     | pins 2 & 3 closed |    Open    |    Open    |
          |--------------+-------------------+------------+------------|
          |   Disabled   |        N/A        |    Open    |   Closed   |
          |--------------+-------------------+------------+------------|
          |   Disabled   |        N/A        |   Closed   |    Open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |  Size  |   Bank 0   |  Parity 0  |   Bank 1   |  Parity 1  |
          |--------+------------+------------+------------+------------|
          | 512KB  | (4) 44256  | (2) 41256  |    NONE    |    NONE    |
          |--------+------------+------------+------------+------------|
          | 640KB  | (4) 44256  | (2) 41256  |  (4) 4464  |  (2) 4164  |
          |--------+------------+------------+------------+------------|
          |  1MB   | (4) 44256  | (2) 41256  | (4) 44256  | (2) 41256  |
          |------------------------------------------------------------|
          | Note:The exact locations of bank 0 and bank 1 are unknown. |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM JUMPER CONFIGURATION                  |
          |------------------------------------------------------------|
          |       Size        |        JP9         |       JP10        |
          |-------------------+--------------------+-------------------|
          |       512KB       |       Closed       |      Closed       |
          |-------------------+--------------------+-------------------|
          |       640KB       |        Open        |      Closed       |
          |-------------------+--------------------+-------------------|
          |        1MB        |        Open        |       Open        |
          +------------------------------------------------------------+