TANDON CORPORATION

PCA/12

Processor              80286
Processor Speed        12MHz
Chip Set               Unidentified
Max. Onboard DRAM      4MB
Cache                  None
BIOS                   Unidentified
Dimensions             254mm x 220mm
I/O Options            Parallel port, serial ports (2), floppy drive
                       interface, IDE interface
NPU Options            80287

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  External battery            J7       IDE interface               J13

  Speaker                     J9       Serial port 2               J14

  Reset switch                J10      Serial port 1               J15

  Parallel port               J11      Floppy drive interface      J16

  IDE interface LED           J12

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch        Position

  »   High speed clock disabled              E1               Closed

      High speed clock enabled               E1                Open

  »   NPU disabled                           E2              pins 1 & 2
                                                               open

      NPU enabled                            E2              pins 1 & 2
                                                              closed

  »   Factory configured - do not            E3              pins 2 & 3
      alter                                                   closed

  »   256KB - 512KB memory enabled          SW1/1               Off

      256KB - 512KB memory                  SW1/1               On
      disabled

  »   512KB - 640KB memory enabled          SW1/2               Off

      512KB - 640KB memory                  SW1/2               On
      disabled

  »   Security enabled                      SW1/3               Off

      Security disabled                     SW1/3               On

  »   Factory configured - do not           SW1/4               Off
      alter

  Note: The location of E3 is unidentified.

              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

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