DEFENSE COMMERCIAL TELECOMMUNICATIONS NETWORK (DCTN) -A DIGITAL INTEGRATED SERVICES NETWORK

摘要

AT&T is currently building a new,dedicated,nationwide network to meet the commercial telecommunications needs of the U.S.Department of Defense.This state-of-the-art,all digital network will carry voice,data and video traffic among over 160 different user locations.The design of this Defense Commercial Telecommunications Network (DCTN) is based upon a network of 5ESSTM digital switches and Digital Access and Cross-connect Systems (DACS) interconnected by both satellite and terrestrial digital transmission facilities.The integrated set of services to be provided on the DCTN includes switched voice,dedicated voice,dedicated data (at bit rates from 75 bps to 1.5 Mbps) and an advanced form of video teleconferencing that allows for chairperson controlled multilocation teleconferencing.DCTN will be the first realization of a major,all digital,integrated services network when it is cut into service in early 1986.