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.