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Demarcation point

Index Demarcation point

In telephony, the demarcation point is the point at which the public switched telephone network ends and connects with the customer's on-premises wiring. [1]

41 relations: AT&T Corporation, Bell System, Breakup of the Bell System, Carterfone, Coaxial cable, Common carrier, Customer-premises equipment, Digital Signal 1, Extension (telephone), Federal Communications Commission, Fuse (electrical), Ground (electricity), GTE, Hush-A-Phone Corp. v. United States, Incumbent local exchange carrier, Interconnection, Junction box, Lightning arrester, Local loop, Local-loop unbundling, Main distribution frame, Modular connector, Natural monopoly, Network interface device, On-premises wiring, Optical fiber, Patch panel, Plain old telephone service, Point of appearance, Public switched telephone network, Punch-down block, Registered jack, Service termination point, Telecommunications Act of 1996, Telephone company, Telephone exchange, Telephony, Tip and ring, Twisted pair, 110 block, 66 block.

AT&T Corporation

AT&T Corp., originally the American Telephone and Telegraph Company, is the subsidiary of AT&T that provides voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies.

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Bell System

The Bell System was the system of companies, led by the Bell Telephone Company and later by AT&T, which provided telephone services to much of the United States and Canada from 1877 to 1984, at various times as a monopoly.

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Breakup of the Bell System

The breakup of the Bell System was mandated on January 8, 1982, by an agreed consent decree providing that AT&T Corporation would, as had been initially proposed by AT&T, relinquish control of the Bell Operating Companies that had provided local telephone service in the United States and Canada up until that point.

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The Carterfone is a device invented by Thomas Carter.

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Coaxial cable

Cross-sectional view of a coaxial cable Coaxial cable, or coax (pronounced), is a type of electrical cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield.

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Common carrier

A common carrier in common law countries (corresponding to a public carrier in civil law systems,Encyclopædia Britannica CD 2000 "Civil-law public carrier" from "carriage of goods" usually called simply a carrier) is a person or company that transports goods or people for any person or company and that is responsible for any possible loss of the goods during transport.

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Customer-premises equipment

Customer-premises equipment or customer-provided equipment (CPE) is any terminal and associated equipment located at a subscriber's premises and connected with a carrier's telecommunication circuit at the demarcation point ("demarc").

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Digital Signal 1

Digital Signal 1 (DS1, sometimes DS-1) is a T-carrier signaling scheme devised by Bell Labs.

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Extension (telephone)

In residential telephony, an extension telephone is an additional telephone wired to the same telephone line as another.

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Federal Communications Commission

The Federal Communications Commission (FCC) is an independent agency of the United States government created by statute (and) to regulate interstate communications by radio, television, wire, satellite, and cable.

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Fuse (electrical)

In electronics and electrical engineering, a fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit.

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Ground (electricity)

In electrical engineering, ground or earth is the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the earth.

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GTE Corporation, formerly General Telephone & Electronics Corporation (1955–1982), was the largest independent telephone company in the United States during the days of the Bell System.

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Hush-A-Phone Corp. v. United States

Hush-A-Phone v. United States, 238 F.2d 266 (D.C. Cir. 1956) was a seminal ruling in United States telecommunications law decided by the D.C. Circuit Court of Appeals.

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Incumbent local exchange carrier

An incumbent local exchange carrier (ILEC) is a local telephone company which held the regional monopoly on landline service before the market was opened to competitive local exchange carriers, or the corporate successor of such a firm.

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In telecommunications, interconnection is the physical linking of a carrier's network with equipment or facilities not belonging to that network.

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Junction box

An electrical junction box is an enclosure housing electrical connections, to protect the connections and provide a safety barrier.

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Lightning arrester

A lightning arrester (alternative spelling lightning arrestor) (also called lightning diverter) is a device used on electric power systems and telecommunication systems to protect the insulation and conductors of the system from the damaging effects of lightning.

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Local loop

In telephony, the local loop (also referred to as a local tail, subscriber line, or in the aggregate as the last mile) is the physical link or circuit that connects from the demarcation point of the customer premises to the edge of the common carrier or telecommunications service provider's network.

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Local-loop unbundling

Local loop unbundling (LLU or LLUB) is the regulatory process of allowing multiple telecommunications operators to use connections from the telephone exchange to the customer's premises.

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Main distribution frame

In telephony, a main distribution frame (MDF or main frame) is a signal distribution frame for connecting equipment (inside plant) to cables and subscriber carrier equipment (outside plant).

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Modular connector

A modular connector is an electrical connector that was originally designed for use in telephone wiring, but has since been used for many other purposes.

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Natural monopoly

A natural monopoly is a monopoly in an industry in which high infrastructural costs and other barriers to entry relative to the size of the market give the largest supplier in an industry, often the first supplier in a market, an overwhelming advantage over potential competitors.

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Network interface device

Two simple NIDs, carrying six lines each, on the outside of a building Abschlusspunkt LinienTechnik'' (APL, "Demarcation point") In telecommunications, a network interface device (NID; also known by several other names) is a device that serves as the demarcation point between the carrier's local loop and the customer's premises wiring.

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On-premises wiring

On-premises wiring (customer premises wiring) is customer-owned telecommunication transmission or distribution lines.

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Optical fiber

An optical fiber or optical fibre is a flexible, transparent fiber made by drawing glass (silica) or plastic to a diameter slightly thicker than that of a human hair.

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Patch panel

A patch panel, patch bay, patch field or jack field is a device or unit featuring a number of jacks, usually of the same or similar type, for the use of connecting and routing circuits for monitoring, interconnecting, and testing circuits in a convenient, flexible manner.

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Plain old telephone service

Plain old telephone service or plain ordinary telephone service (POTS) is a retronym for voice-grade telephone service employing analog signal transmission over copper loops.

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Point of appearance

Point of appearance is a generic term for any point in a telephone/data circuit from which a technician can test or pull stats.

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Public switched telephone network

The public switched telephone network (PSTN) is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telephony operators, providing infrastructure and services for public telecommunication.

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Punch-down block

A punch-down block (also punchdown block, punch block, punchblock, quick-connect block and other variations) is a type of electrical connection often used in telephony.

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Registered jack

A registered jack (RJ) is a standardized telecommunication network interface for connecting voice and data equipment to a service provided by a local exchange carrier or long distance carrier.

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Service termination point

In telecommunication, service termination point is the last point of service rendered by a commercial carrier under applicable tariffs.

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Telecommunications Act of 1996

The Telecommunications Act of 1996 was the first significant overhaul of telecommunications law in more than sixty years, amending the Communications Act of 1934.

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Telephone company

A telephone company, also known as a telco, telephone service provider, or telecommunications operator, is a kind of communications service provider (CSP) (more precisely a telecommunications service provider or TSP) that provides telecommunications services such as telephony and data communications access.

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Telephone exchange

A telephone exchange is a telecommunications system used in the public switched telephone network or in large enterprises.

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Telephony is the field of technology involving the development, application, and deployment of telecommunication services for the purpose of electronic transmission of voice, fax, or data, between distant parties.

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Tip and ring

Tip and ring are the names of the two conductors or sides of a telephone line.

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Twisted pair

Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of improving electromagnetic compatibility.

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110 block

A 110 block is a type of punch block used to terminate runs of on-premises wiring in a structured cabling system.

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66 block

A 66 block is a type of punchdown block used to connect sets of wires in a telephone system.

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Redirects here:

DEMARC, Demarc, Demarc extension, Demarcation point extension, Demark, Dmark, MPOE, Minimum point of entry.


[1] https://en.wikipedia.org/wiki/Demarcation_point

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