automatic send receive

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

Automatic Send Receive
ASR

   <hardware> (ASR) Part of a designation for a hard-copy
   {terminal}, manufactured by {Teletype Corporation}, which
   could be commanded remotely to send the contents of its {paper
   tape} reader.  The ASR-33 was the most common {minicomputer}
   terminal in the early 1970s.

   (1995-11-23)