ConnNet was a packet switched data network operated by the Southern New England Telephone Company serving the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...

Connecticut Connecticut ( ) is a U.S. state, state in the New England region of the Northeastern United States. It borders Rhode Island to the east, Massachusetts to the north, New York (state), New York to the west, and Long Island Sound to the south. ...

. ConnNet was the nation's first local public

packet switching In telecommunications, packet switching is a method of grouping Data (computing), data into short messages in fixed format, i.e. ''network packet, packets,'' that are transmitted over a digital Telecommunications network, network. Packets consi ...

network when it was launched on March 11, 1985. Users could access services such as

Dow Jones Dow Jones is a combination of the names of business partners Charles Dow and Edward Jones. Dow Jones & Company Dow, Jones and Charles Bergstresser founded Dow Jones & Company in 1882. That company eventually became a subsidiary of News Corp, an ...

News Retrieval,

CompuServe CompuServe, Inc. (CompuServe Information Service, Inc., also known by its initialism CIS or later CSi) was an American Internet company that provided the first major commercial online service provider, online service. It opened in 1969 as a times ...

, Dialcom,

GEnie GEnie (General Electric Network for Information Exchange) was an online service provider, online service created by a General Electric business, GEIS (now GXS Inc., GXS), that ran from 1985 through the end of 1999. In 1994, GEnie claimed around ...

Delphi Delphi (; ), in legend previously called Pytho (Πυθώ), was an ancient sacred precinct and the seat of Pythia, the major oracle who was consulted about important decisions throughout the ancient Classical antiquity, classical world. The A ...

, Eaasy Sabre, NewsNet, PeopleLink, the

National Library of Medicine The United States National Library of Medicine (NLM), operated by the United States federal government, is the world's largest medical library. Located in Bethesda, Maryland, the NLM is an institute within the National Institutes of Health. I ...

, and BIX. ConnNet could also be used to access other national and international packet networks, such as

Tymnet Tymnet was an international data communications network developed and operated by Tymshare. It was based at the company’s headquarters in Cupertino, California. The network used packet-switching techniques, including statistical multiplexing, an ...

and ACCUNET. Large companies also connected their

mainframe A mainframe computer, informally called a mainframe or big iron, is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterpris ...

computers to ConnNet allowing employees access to the mainframes from home. The network is no longer in operation.

Hardware

The

X.25 X.25 is an ITU-T standard protocol suite for Packet switched network, packet-switched data communication in wide area network, wide area networks (WAN). It was originally defined by the CCITT, International Telegraph and Telephone Consultative Co ...

network was based on hardware from Databit, Inc. consisting of three EDX-P Network Nodes that performed switching and were located in Hartford, New Haven and Stamford. Databit also supplied 23 ANP 2520 Advanced Network Processors each of which provided the system with a

point of presence A point of presence (PoP) is an artificial demarcation point or network interface point between communicating entities. A common example is an ISP point of presence, the local access point that allows users to connect to the Internet with their ...

, a network control center and modems. Customers would order

leased line A leased line is a private telecommunications circuit between two or more locations provided according to a commercial contract. It is sometimes also known as a private circuit, and as a data line in the UK. Typically, leased lines are used by ...

connections into the network for

host computer A network host is a computer or other device connected to a computer network. A host may work as a server offering information resources, services, and applications to users or other hosts on the network. Hosts are assigned at least one network a ...

s running at 4,800 to 56,000

bits per second In telecommunications and computing, bit rate (bitrate or as a variable ''R'') is the number of bits that are conveyed or processed per unit of time. The bit rate is expressed in the unit bit per second (symbol: bit/s), often in conjunction ...

(bit/s). Terminals would connect over a leased line from 1,200 to 9,600 bit/s synchronous, 300 to 2,400 bit/s asynchronous or using dial-up connections from 300 to 1,200 bit/s. The connection to Tymnet was established over an X.75 based 9,600 bit/s analog link from the ConnNet Hartford node to Tymnet's Bloomfield node.

References

# Southern New England Telephone (Mar 13, 1985). ''SNET; Offers its Connecticut customers the first local packet switched data network in the nation''. Press Release # ConnNet Online Help. Accessed Jan 07, 1991 # AT&T (Jan 29, 1986). Untitled. Press Release # SNET / Packet/PC (Nov 12, 1987). ''PC users can link to IBM mainframes with Packet/ PC software and SNET's Connect''. Press Release # Scully, Sharon (June 2, 1986). "Protocol Conversion; SNET heralds services". ''Network World'', p 4. # Databit (May 27, 1986). ''DATABIT; Announces point-of-sale terminal application with Southern New England Telephone''. Press Release # Strauss, Paul R. (Jan 1 1987). "Feature 1986: Information networking's quiet watershed year in review". ''Data Communications'', p 169. {{DEFAULTSORT:Connnet 1985 establishments in Connecticut Communications in Connecticut History of the Internet