A telecommunication circuit is defined as follows:

1. The complete path between two terminals over which one-way or two-way communications may be provided. See communications protocol.
2. An electronic path between two or more points, capable of providing a number of channels.
3. A number of conductors connected together for the purpose of carrying an electric current.
4. An electronic closed-loop path among two or more points used for signal transfer.
5. A number of electrical components, such as resistors, inductances, capacitors, transistors, and power sources connected together in one or more closed loops.

Source: from Federal Standard 1037C and from MIL-STD-188 A path is a route between two points. ... The term communications is used in a number of disciplines: Communications, also known as communication studies is the academic discipline which studies communication, generally seen as a mixture between media studies and linguistics. ... This article concerns communication between pairs of electronic devices. ... Channel, in communications (sometimes called communications channel), refers to the medium through which information is transmitted from a sender (or transmitter) to a receiver. ... In electricity, current refers to electric current, which is the flow of electric charge. ... Signaling or signal may mean: Look up signal and signaling in Wiktionary, the free dictionary. ... Did you mean? decal Population transfer Manhattan Transfer List of Latin words with English derivatives Transfer (movie) Electron transfer Fare transfer A technique in propaganda This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... Electric power is the amount of work done by an electric current in a unit time. ... Federal Standard 1037C entitled Telecommunications: Glossary of Telecommunication Terms is a U.S. Federal Standard, issued by the General Services Administration pursuant to the Federal Property and Administrative Services Act of 1949, as amended. ... MIL-STD-188 is a series of U.S. military standards relating to telecommunications. ...

In telecommunications, a [tele]communication[s] circuit is any line or circuit on which information is transmitted. Telecommunication is the extension of communication over a distance. ... Information as a concept bears a diversity of meanings, from everyday usage to technical settings. ... In communications, transmission is the act of transmitting electrical messages (and the associated phenonomena of radiant energy that pass through media). ...

A dedicated circuit, private circuit, or leased line is a line that is dedicated to only one use. Originally, this was analog, and was often used by radio stations as a studio/transmitter link (STL) or remote pickup unit (RPU) for their audio, sometimes as a backup to other means. Later lines were digital, and used for private corporate data networks. An analog or analogue signal is any continuously variable signal. ... To meet Wikipedias quality standards and appeal to a wider international audience, this article may require cleanup. ... A studio-transmitter link sends a radio stations or television stations audio and video from the broadcast studio to a transmitter in another location. ... This article needs to be wikified. ... Audio can mean: Sound that can be heard. ... Backup in computer engineering refers to the copying of data for the purpose of having an additional copy of an original source. ... A digital system is one that uses numbers, especially binary numbers, for input, processing, transmission, storage, or display, rather than a continuous spectrum of values (an analog system) or non-numeric symbols such as letters or icons. ... A corporation (usually known in the United Kingdom and Ireland as a company) is a legal entity (distinct from a natural person) that often has similar rights in law to those of a Civil law systems may refer to corporations as moral persons; they may also go by the name... A computer network is a system for communication among two or more computers. ...

The opposite of a dedicated circuit is a switched circuit, which can be connected to different paths. A POTS or ISDN telephone line is a switched circuit, because it can connect to any other telephone number. Plain old telephone service, or POTS, are the services available from analogue telephones prior to the introduction of electronic telephone exchanges into the public switched telephone network. ... ISDN is also short for isosorbide dinitrate Integrated Services Digital Network (ISDN) is a type of circuit switched telephone network system, designed to allow digital (as opposed to analog) transmission of voice and data over ordinary telephone copper wires, resulting in better quality and higher speeds, than available with analog... The telephone or phone (Greek: tele = far away and phone = voice) is a telecommunications device which is used to transmit and receive sound (most commonly voice and speech) across distance. ... A telephone number is a string of decimal digits that uniquely indicates the network termination point. ...

On digital lines, a virtual circuit can be created to serve either purpose, while sharing a single physical circuit. A virtual circuit (VC) is a communications arrangement in which data from a source user may be passed to a destination user over more than one real circuit configuration during a single period of communication, but the switching is hidden from the users. ... Sharing is the joint use of a resource. ...