
JPN CORPORATION

286LS

Processor         80286
Processor Speed   12/16MHz
Chip Set          Headland
Max. Onboard DRAM 4MB
Cache             None
BIOS              AMI
Dimensions        220mm x 220mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  External battery            JP2      Turbo switch               JP10

  Speaker                     JP8      Reset switch               JP11

  Turbo LED                   JP9      Power LED & keylock        JP12

                        USER CONFIGURABLE SETTINGS

                 Function                     Jumper         Position

     Monitor type select color                JP3            Closed

      Monitor type select monochrome           JP3             Open

     CMOS memory normal operation             JP4             Open

      CMOS memory clear                        JP4            Closed

     BIOS type select 27256                   JP5           pins 2 & 3
                                                              closed

      BIOS type select 27128                   JP5           pins 1 & 2
                                                              closed

     NPU clock speed select 10.4MHz           JP6           pins 1 & 2
                                                              closed

      NPU clock speed select 4.8MHz            JP6           pins 2 & 3
                                                              closed

     NPU mode select synchronous with         JP7            Closed
      CPU

      NPU mode select asynchronous with        JP7             Open
      CPU

                            DRAM CONFIGURATION

   Size      Bank 0     Bank 1    Parity 0   Parity 1   Bank 0     Bank 1
              (D)        (D)        (D)        (D)       (S)        (S)

  512KB       (4)       NONE        (2)       NONE       NONE      NONE
             44256                 41256

  512KB      NONE       NONE       NONE       NONE        (2)      NONE
                                                        256K x
                                                          9

  640KB       (4)      (4) 4464     (2)      (2) 4164    NONE      NONE
             44256                 41256

   1MB        (4)        (4)        (2)        (2)       NONE      NONE
             44256      44256      41256      41256

   1MB       NONE       NONE       NONE       NONE        (2)       (2)
                                                        256K x     256K x
                                                          9          9

   2MB       NONE       NONE       NONE       NONE      (2) 1M     NONE
                                                         x 9

   4MB       NONE       NONE       NONE       NONE      (4) 1M     (2) 1M
                                                         x 9        x 9

  Notes:Model 286LS is available with either SIMM or SIPP sockets. DIP
  and SIMM/SIPP memory must be used separately.

