X.29

from The Free On-line Dictionary of Computing (8 July 2008)

X.29

   The {ITU-T} {standard}, approved by {ISO}, specifying
   procedures for the exchange of control information and user
   data between a {PAD} and a remote {packet-mode} {DTE}.
   {Character-mode} {DTEs} are often referred to as X.29
   terminals.

   (1995-01-31)