ttydefs(4)                       UNIX System V                       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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