DIGI INTERNATIONAL, INC.

MC/4I, MC/8I (PART NO. 30001224)

Card Type              Serial
Processor              80C186
Processor Speed        Unidentified
Chipset                Unidentified
Maximum Onboard Memory 256KB dual-ported RAM
I/O Options            Serial ports (4 for MC/4i, 8 for MC/8i)
Data Bus               MCA
Card Size              Full height, full length

[Image]

                                CONNECTIONS

         Function            Label            Function            Label

  RS-232, RS-422, or          CN1       Header to H2A              H2B
  RS-485 serial ports via
  DB-78 connector

  Header to H1B               H1A       Header to H3B              H3A

  Header to H1A               H1B       Header to H3A              H3B

  Header to H2B               H2A

            Note:Standard serial ports are provided on an included
            adapter cable.

            The types of serial ports provided are configured at the
            factory and are not user-configurable.

                        USER CONFIGURABLE SETTINGS

                  Setting                      Label         Position

  »   Shared memory window is 32KB              J1          Pins 2 & 3
                                                              closed

      Shared memory window is 128KB             J1          Pins 1 & 2
                                                              closed

                           EPROM SIZE SELECTION

         Setting                    J5                       J6

          16KB              Pins 1 & 2 closed        Pins 1 & 2 closed

          32KB              Pins 1 & 2 closed        Pins 1 & 2 closed

          64KB              Pins 1 & 2 closed        Pins 2 & 3 closed

          128KB             Pins 2 & 3 closed        Pins 2 & 3 closed

            Note:On RS-422 versions of this board, the jumpers are
            labeled J3 and J4, respectively.