NORTHGATE COMPUTER SYSTEMS, INC.

OMNISTATION 286

Processor               80286
Processor Speed         12.5MHz
Chip Set                None
Max. Onboard DRAM       4MB
Cache                   None
BIOS                    AMI
Dimensions              330mm x 218mm
I/O Options             Bus mouse port, floppy drive interface, IDE
                        interface, parallel port, proprietary 16-bit AT
                        expansion slot, serial ports (2), VGA port
NPU Options             80287

[Image]

                                CONNECTIONS

  Purpose                  Location     Purpose                 Location

  Proprietary expansion       EX1       Serial port 1              J9
  card

  Bus mouse port              J4        Parallel port             J10

  Reset switch                J6        VGA port                  J12

  Floppy drive                J7        IDE interface             J14
  interface

  Serial port 2               J8        IDE interface LED &       J15
                                        keylock

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Factory configured - do not alter        W2            pins 1 & 2
                                                              closed

  »   Monitor type select monochrome           W3            pins 1 & 2
                                                              closed

      Monitor type select color                W3            pins 2 & 3
                                                              closed

  »   Floppy drive interface enabled           W4            pins 2 & 3
                                                              closed

      Floppy drive interface disabled          W4            pins 1 & 2
                                                              closed

  »   Factory configured - do not alter        W5Z           pins 1 & 2
                                                              closed

      NPU type select 12.5MHz                  W9            pins 1 & 2
                                                              closed

      NPU type select 6MHz                     W9            pins 2 & 3
                                                              closed

  »   VGA port enabled                         W11           pins 2 & 3
                                                              closed

      VGA port disabled                        W11           pins 1 & 2
                                                              closed

  »   IDE interface LED enabled                W12           pins 2 & 3
                                                              closed

      IDE interface LED disabled               W12           pins 1 & 2
                                                              closed

  »   Factory configured - do not alter        W15           pins 1 & 2
                                                              closed

  »   Bus mouse port enabled (IRQ12)           W16            Closed

      Bus mouse port disabled                  W16             Open

  »   Factory configured - do not alter        W17             Open

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

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

[Image]

                      CONNECTIONS (AT EXPANSION CARD)

  Purpose                   Location   Purpose                   Location

  Data access LED             J1       Turbo LED                   J7

       INTERRUPT JUMPER CONFIGURATION (AT EXPANSION CARD)

   Interrupt        J2       J3        J4       J5        J6

      IRQ2        Closed    Open      Open     Open      Open

      IRQ3         Open     Open      Open     Open      Closed

      IRQ4         Open     Open      Open     Closed    Open

      IRQ5         Open     Open     Closed    Open      Open

      IRQ7         Open     Closed    Open     Open      Open