
INTEL CORPORATION

SYSTEM 302

Processor               80386DX
Processor Speed         25MHz
Chip Set                Intel
Max. Onboard DRAM       8MB
Cache                   64KB
BIOS                    Phoenix
Dimensions              355mm x 304mm
I/O OPTIONS             32-bit external memory card slot (2), parallel
                        port, serial port (2)
NPU Options             80387

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                  Location

  Parallel port            J10A       Speaker                    J19

  Serial port 9 pin        J10B       Power LED & Keylock        J20
  (COM1 & COM2)

  Serial port 25 pin       J10C       Memory expansion            S1
  (COM2)                              slot

  Reset switch (not        J18        Memory expansion            S2
  used)                               slot

  Note: J10B connects to two DB9 RS-232 connectors, J10C connects to one
  DB25 RS-232 connector.

  COM2 is active on both J10B and J10C, but only one may be used at a
  time for COM2.

                        USER CONFIGURABLE SETTINGS

                   Function                           Jumpered Pins

     DRAM speed (100ns)                         E1 - E2, E4 - E5 closed

     SIMM size select 256K x 9                     E7 - E8, E10 - E11
                                                          closed

      SIMM size select 1M x 9                       E8 - E9, E11 - E12
                                                          closed

     Parallel printer port select LPT1            E13 - E14, E20 - E21
                                                          closed

      Parallel printer port select LPT2            E14 - E15, E19 - E20
                                                          closed

     Printer acknowledge trailing edge              E17 - E18 closed

      Printer acknowledge leading edge               E16 - E17 closed

     Serial port, (COM1) enabled                    E22 - E23 closed

      Serial port, (COM1) disabled                   E23 - E24 closed

     Serial port, (COM2) enabled                    E25 - E26 closed

      Serial port, (COM2) disabled                   E26 - E27 closed

     NPU disabled                                   E29 - E30 closed

      NPU enabled                                    E28 - E29 closed

     Keyboard reset disabled                        E35 - E36 closed

      Keyboard reset enabled                         E34 - E35 closed

     UNIX mode disabled                             E38 - E39 closed

      UNIX mode enabled                              E37 - E38 closed

     Monitor type select color                      E41 - E42 closed

      Monitor type select monochrome                 E40 - E41 closed

     Factory configured - do not alter              E49 - E50 closed

      SIMM type standard RAS/CAS                   E53 - E54, E55 - E56
                                                           open

      SIMM type static-column                      E53 - E54, E55 - E56
                                                          closed

      SIMM type fast page mode                     E53 - E54, E55 - E56
                                                          closed

     BIOS type 27256                                E57 - E58 closed

      BIOS type 27512                                E58 - E59 closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

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

      4MB         (4) 1M x 9         NONE

      8MB         (4) 1M x 9      (4) 1M x 9

                  DRAM JUMPER CONFIGURATION

             Size                         Jumpers

              1MB                E60 - E62, E61 - E63 open

              2MB               E60 - E62, E61 - E63 closed

              4MB                E60 - E62, E61 - E63 open

              8MB               E60 - E62, E61 - E63 closed

