X2

1 definition found

From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:

  X2
       
           A proprietary modem standard developed by {US
          Robotics} for 56 {kbps} communications.  Not taken up as
          widely as {K56flex} and will shortly be superseded by the
          official {V.90} standard.


       
          (1998-09-08)