File No. 536015370"09
File No. S360/S370-09
Introduction to the
IBM 3704 and 3705
Systems Communications Controllers
Fourth Edition (July 1976)
This is a major revision of, and makes obsolete, GA27-30S1-2 and Technical Newsletter
GN27-3165. This edition contains several additions and changes as indicated on the Summary
of Amendments page. Changes are periodically made to the information herein; before using
this publication in connection with the operation of IBM systems, consult the latest IBM
System/360 and System/370 Bibliography (GA22-6822) and associated Technical Newsletters,
for the editions that are applicable and current.
Requests for copies of IBM pUblications should be made to your IBM representative or to
the IBM branch office serving your locality.
This manual has been prepared by the IBM Systems Communications Division, Publications