ttydefs(4)                                                       ttydefs(4)


   NAME
         ttydefs - file contains terminal line settings information for ttymon

   DESCRIPTION
         /etc/ttydefs is an administrative file that contains information used
         by ttymon to set up the speed and terminal settings for a TTY port.

         The ttydefs file contains the following fields:

         ttylabel       The string ttymon tries to match against the TTY
                        port's ttylabel field in the port monitor
                        administrative file.  It often describes the speed at
                        which the terminal is supposed to run, for example,
                        1200.

         initial-flags  Contains the initial termio(7) settings to which the
                        terminal is to be set.  For example, the system
                        administrator will be able to specify what the default
                        erase and kill characters will be.  initial-flags must
                        be specified in the syntax recognized by the stty
                        command.

         final-flags    final-flags must be specified in the same format as
                        initial-flags.  ttymon sets these final settings after
                        a connection request has been made and immediately
                        prior to invoking a port's service.

         autobaud       If the autobaud field contains the character `A',
                        autobaud will be enabled.  Otherwise, autobaud will be
                        disabled.  ttymon determines what line speed to set
                        the TTY port to by analyzing the carriage returns
                        entered.  If autobaud has been disabled, the hunt
                        sequence is used for baud rate determination.

         nextlabel      If the user indicates that the current terminal
                        setting is not appropriate by sending a BREAK, ttymon
                        searchs for a ttydefs entry whose ttylabel field
                        matches the nextlabel field.  If a match is found,
                        ttymon uses that field as its ttylabel field.  A
                        series of speeds is often linked together in this way
                        into a closed set called a hunt sequence.  For
                        example, 4800 may be linked to 1200, which in turn is
                        linked to 2400, which is finally linked to 4800.

   SEE ALSO
         ttymon(1M), sttydefs(1M)
         System Administrator's Guide, ``Service Access''






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