Creates a CSMA-CD Station.  The required arguments are:

     o  Station Name

        The name of the CSMA-CD Station you wish to create.  For example,
        CSMACD-0.

     o  Communication Port

        The system device name assigned to this station.  The name must be
        in the format ddc, where dd is the device name prefix, and c is the
        controller letter.  The following are examples of device prefixes.
        For example, the Communications Port for the first controller on
        an SGEC would be EZA.  For the second controller it would be EZB, and
        so on.

        Device Type       Prefix

        DEBNA             ET
        DEBNI             ET
        DELQA             XQ
        DELUA             XE
        DEMNA             EX
        DEQTA             XQ
        DESVA             ES
        DEUNA             XE
        PMAD              EC
        SGEC              EZ
        TGEC              TE

    Press CONTINUE to create the CSMA-CD Station, or press CANCEL to cancel
    this operation.  In either case, you will be returned to the main window.