EVEREX SYSTEMS, INC.

EVERGRAPHICS PLUS EV-231A

Category                  Video
Video Types Supported     Monochrome
Video Processor           6845
Highest Resolution        720 x 348
Supported
Data Bus Type             8-bit ISA
Memory Type               DRAM
Maximum Onboard Memory    64KB (Exact location of memory is unidentified)

[Image]

                                CONNECTIONS

         Purpose           Location           Purpose           Location

  Monochrome video port      PA5       Parallel port              PC5

                    COLUMN (132) DISPLAY CONFIGURATION

                Setting                                 JA2

  »                Enabled                       Pins 1 & 2 closed

                  Disabled                       Pins 2 & 3 closed

                     PARALLEL PORT INTERRUPT SELECTION

                 IRQ                                  JG6

  »                 7                          Pins 2 & 3 closed

                    5                          Pins 1 & 2 closed

                        PARALLEL PORT CONFIGURATION

             LPT                    Address                  JC7

  »             1                 3BCh - 3BEh         Pins 1 & 2 closed

                2                 378h - 37Fh         Pins 3 & 4 closed

                3                 278h - 27Fh          Pins 1 & 2, 3 & 4
                                                            closed

            Disabled                  N/A                    Open

  FACTORY CONFIGURED - DO NOT ALTER

      Jumper            Position

        JB1              Closed

        JB5               Open

       JC7B               Open