DATA BUSINESS SYSTEMS

KEYBOARD PC

Processor               80286/80386SX
Processor Speed         12/16/20/25MHz
Chip Set                C & T
Max. Onboard DRAM       16MB
Cache                   32KB (80386SX model only)
BIOS                    AMI
Dimensions              236mm x 205mm
I/O Options             Bus mouse port, external keyboard connector, floppy
                        interface, game port, IDE interface, parallel ports
                        (3), serial ports (2), VGA port, Video port (TTL)
NPU Options             80287/80387SX

[Image]

                           VIDEO SWITCH SETTINGS

   Function     SW1/4     SW1/5    SW1/6     SW1/7     SW1/8       JP2

  Monochrome    Closed    Open     Closed    Open      Open      pins 1 &
                                                                2 closed

     CGA         Open     Closed    Open     Closed    Closed    pins 2 &
                                                                3 closed

     EGA         Open     Closed   Closed    Open      Open      pins 1 &
                                                                2 closed

  Notes:For VGA mode, no switch configuration is necessary.

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  DC power                   CN1       Hard & floppy drive        CN15
                                       power

  Video port (TTL)           CN2       Internal IDE drive         CN16

  VGA port                   CN3       External IDE drive         CN17

  Parallel port (LPT1)       CN4       16-bit ISA expansion       ISA1
                                       slot (2/3 size)

  Parallel port (LPT2)       CN5       Speaker                     J1

  Parallel port (LPT3)       CN6       Integrated keyboard         J2

  Serial port (COM1)         CN7       Turbo LED                   J3

  Serial port (COM2)         CN8       IDE interface LED           J4

  Bus mouse port             CN9       Power LED & keylock         J5

  Auxiliary keyboard        CN10       External battery            J6

  Game port                 CN12       Power switch                J7

  Internal floppy drive     CN13       Reset switch                J8

  External floppy drive     CN14

                        USER CONFIGURABLE SETTINGS

          Function             Jumper/Switch             Position

      Volume select maximum         CN11              max. clockwise

      Volume select minimum         CN11          max. counter-clockwise

  »   CMOS memory normal            JP1             pins 1 & 2 closed
      operation

      CMOS memory clear             JP1             pins 2 & 3 closed

  »   Memory select 0 wait          JP3                    Open
      states

      Memory select 1 wait          JP3                   Closed
      state

  »   LPT2 (CN5) enabled           SW1/1                    On

      LPT2 (CN5) disabled          SW1/1                   Off

  »   LPT3 (CN6) enabled           SW1/2                    On

      LPT3 (CN6) disabled          SW1/2                   Off

  »   Game port (CN12)             SW1/3                    On
      enabled

      Game port (CN12)             SW1/3                   Off
      disabled

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

     512KB        (2) 256K x 9       NONE

      1MB         (2) 256K x 9   (2) 256K x 9

      2MB         (2) 1M x 9         NONE

     2.5MB        (2) 256K x 9    (2) 1M x 9

      4MB         (2) 1M x 9      (2) 1M x 9

      8MB         (2) 4M x 9         NONE

     8.5MB        (2) 256K x 9    (2) 4M x 9

      10MB        (2) 1M x 9      (2) 4M x 9

      16MB        (2) 4M x 9      (2) 4M x 9

     CACHE CONFIGURATION

     Size          Bank 0

     32KB       (4) 16K x 4