(TXT) View Source
       
       # UNITRON COMPUTER, INC.
       
          3486 SYSTEM TYPE 16
       
          Processor    80386SX/CX486SLC                                  
          Processor    16/20/25/33MHz                                    
          Speed        
          Chip Set     OPTI                                              
          Max. Onboard 16MB                                              
          DRAM         
          Cache        None                                              
          BIOS         Phoenix                                           
          Dimensions   254mm x 218mm                                     
          I/O Options  Floppy drive interface, game port, IDE interface, 
                       parallel port, serial ports (2), VGA port         
          NPU Options  80387SX                                           
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose        | Location | Purpose             | Location |
          |----------------+----------+---------------------+----------|
          | Game port      |   CN1    | IDE interface       |   J23    |
          |----------------+----------+---------------------+----------|
          | VGA port       |   CN2    | IDE interface LED   |   J24    |
          |----------------+----------+---------------------+----------|
          | Parallel port  |   CN3    | Turbo LED           |   J26    |
          |----------------+----------+---------------------+----------|
          | Serial port 2  |   CN4    | Turbo LED           |   J30    |
          |----------------+----------+---------------------+----------|
          | Serial port 1  |   CN5    | Power LED & keylock |   J31    |
          |----------------+----------+---------------------+----------|
          | Chassis fan    |   J13    | Floppy drive        |   J32    |
          | power          |          | interface           |          |
          |----------------+----------+---------------------+----------|
          | Reset switch   |   J14    | Riser Card          |   SL1    |
          |----------------+----------+---------------------+----------|
          | Speaker        |   J21    |                     |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | Hard drive installed             |   J1   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Hard drive not installed         |   J1   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Serial port B enabled            |   J3   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Serial port B disabled           |   J3   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Game port enabled                |   J4   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Game port disabled               |   J4   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Parallel port enabled            |   J7   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Parallel port disabled           |   J7   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Serial port A enabled            |   J8   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Serial port A disabled           |   J8   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Parallel port select LPT1        |   J9   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Parallel port select LPT2        |   J9   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select color        |  J11   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select monochrome   |  J11   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Display type select non          |  J15   |    Open    |
          |   | interlaced                       |        |            |
          |---+----------------------------------+--------+------------|
          |   | Display type select intrlaced    |  J15   |   Closed   |
          |---+----------------------------------+--------+------------|
          | » | NPU synchronous with CPU         |  J16   |    Open    |
          |---+----------------------------------+--------+------------|
          |   | NPU asynchronous with CPU        |  J16   |   Closed   |
          |---+----------------------------------+--------+------------|
          | » | Floppy drive interface enabled   |  J25   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Floppy drive interface disabled  |  J25   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | IDE interface enabled            |  J27   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | IDE interface disabled           |  J27   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Turbo LED enabled on J26 (System |  J29   | pins 1 & 2 |
          |   | M)                               |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Floppy drive LED enabled on J26  |  J29   | pins 2 & 3 |
          |   | (System B; open J30)             |        |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
          |-------+-------------+------------+------------+------------|
          | 512KB | (2) 256K x  |    NONE    |    NONE    |    NONE    |
          |       |      9      |            |            |            |
          |-------+-------------+------------+------------+------------|
          |  1MB  | (2) 256K x  | (2) 256K x |    NONE    |    NONE    |
          |       |      9      |     9      |            |            |
          |-------+-------------+------------+------------+------------|
          |  2MB  | (2) 256K x  | (2) 256K x | (2) 256K x | (2) 256K x |
          |       |      9      |     9      |     9      |     9      |
          |-------+-------------+------------+------------+------------|
          |  2MB  | (2) 1M x 9  |    NONE    |    NONE    |    NONE    |
          |-------+-------------+------------+------------+------------|
          |  3MB  | (2) 256K x  | (2) 1M x 9 | (2) 256K x |    NONE    |
          |       |      9      |            |     9      |            |
          |-------+-------------+------------+------------+------------|
          |  4MB  | (2) 1M x 9  | (2) 1M x 9 |    NONE    |    NONE    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          | Size |   Bank 0    |   Bank 1   |   Bank 2    |   Bank 3   |
          |------+-------------+------------+-------------+------------|
          | 5MB  | (2) 256K x  | (2) 1M x 9 | (2) 256K x  | (2) 1M x 9 |
          |      |      9      |            |      9      |            |
          |------+-------------+------------+-------------+------------|
          | 6MB  | (2) 1M x 9  | (2) 1M x 9 | (2) 1M x 9  |    NONE    |
          |------+-------------+------------+-------------+------------|
          | 8MB  | (2) 1M x 9  | (2) 1M x 9 | (2) 1M x 9  | (2) 1M x 9 |
          |------+-------------+------------+-------------+------------|
          | 8MB  | (2) 4M x 9  |    NONE    |    NONE     |    NONE    |
          |------+-------------+------------+-------------+------------|
          | 12MB | (2) 1M x 9  | (2) 4M x 9 | (2) 1M x 9  |    NONE    |
          |------+-------------+------------+-------------+------------|
          | 16MB | (2) 4M x 9  | (2) 4M x 9 |    NONE     |    NONE    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |           Type           |               J28               |
          |--------------------------+---------------------------------|
          |         80386SX          |              Open               |
          |--------------------------+---------------------------------|
          |         80486SLC         | pins 1 & 2, 3 & 4, 5 & 6 closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CPU SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |      Speed       |        J35         |        J38         |
          |------------------+--------------------+--------------------|
          |      16MHz       | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |      20MHz       | pins 1 & 2 closed  | pins 2 & 3 closed  |
          |------------------+--------------------+--------------------|
          |      25MHz       | pins 2 & 3 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |      33MHz       | pins 2 & 3 closed  | pins 2 & 3 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 FLOPPY DRIVE CONFIGURATION                 |
          |------------------------------------------------------------|
          |   Type    |    J17     |    J18    |    J19    |    J20    |
          |-----------+------------+-----------+-----------+-----------|
          | System B  | pins 1 & 2 | pins 1 &  | pins 1 &  | pins 1 &  |
          |           |   closed   | 2 closed  | 2 closed  | 2 closed  |
          |-----------+------------+-----------+-----------+-----------|
          | System M  | pins 2 & 3 | pins 2 &  | pins 2 &  | pins 2 &  |
          |           |   closed   | 3 closed  | 3 closed  | 3 closed  |
          |------------------------------------------------------------|
          |      Note: System B- drive B has twisted cable; drive A    |
          |      has straight cable. System M- drive B has straight    |
          |      cable; drive A has twisted cable                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 SERIAL PORT CONFIGURATION                  |
          |------------------------------------------------------------|
          |           Port 1           |              J10              |
          |----------------------------+-------------------------------|
          |            COM1            |       pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |            COM3            |       pins 2 & 3 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 SERIAL PORT CONFIGURATION                  |
          |------------------------------------------------------------|
          |           Port 2           |              J2               |
          |----------------------------+-------------------------------|
          |            COM2            |       pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |            COM4            |       pins 2 & 3 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     VRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |  Size  |   Bank 0   |   Bank 1   |   Bank 2   |   Bank 3   |
          |--------+------------+------------+------------+------------|
          | 256KB  | (2) 44256  |    NONE    |    NONE    |    NONE    |
          |--------+------------+------------+------------+------------|
          | 512KB  | (2) 44256  | (2) 44256  |    NONE    |    NONE    |
          |--------+------------+------------+------------+------------|
          |  1MB   | (2) 44256  | (2) 44256  | (2) 44256  | (2) 44256  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 ON BOARD VGA CONFIGURATION                 |
          |------------------------------------------------------------|
          |      Setting       |        J36        |        J37        |
          |--------------------+-------------------+-------------------|
          |      Enabled       |      Closed       |      Closed       |
          |--------------------+-------------------+-------------------|
          |      Disabled      |       Open        |       Open        |
          +------------------------------------------------------------+