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Registered jack

Index 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. [1]

59 relations: Amphenol, Bell System, Breakout box, British telephone socket, Business telephone system, Carterfone, Category 5 cable, Code of Federal Regulations, Communications Act of 1934, Customer-premises equipment, Demarcation point, Digital Equipment Corporation, Digital Signal 1, DIN 47100, Electrical conductor, Electrical connector, EtherCON, Ethernet, Ethernet over twisted pair, Fast Ethernet, Federal Communications Commission, Generic trademark, Gigabit Ethernet, Ground (electricity), Hush-A-Phone Corp. v. United States, IEEE 802, Integrated Services Digital Network, Interconnection, Interexchange carrier, Local exchange carrier, Manufacturing, Micro ribbon connector, Modified Modular Jack, Modular connector, Network interface device, Parallel SCSI, Party line (telephony), Patch panel, Princess telephone, Printer (computing), Protea (telephone), Pulse dialing, Punch-down block, Registered jack, Rotary dial, Standardization, Telecommunication, Telecommunication circuit, Telecommunications Industry Association, Telephone, ..., Telephone line, Telephone plug, TIA/EIA-568, Tip and ring, Title 47 CFR Part 68, Trimline telephone, Twisted pair, 1A2 Key Telephone System, 25-pair color code. Expand index (9 more) »


Amphenol Corporation is a major producer of electronic and fiber optic connectors, cable and interconnect systems such as coaxial cables.

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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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Breakout box

A breakout box is a critical piece of electrical test equipment used to support integration testing, expedite maintenance, and streamline the troubleshooting process at the system, subsystem, and component level by simplifying the access to test signals.

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British telephone socket

British telephone sockets were introduced in their current plug and socket form on 19 November 1981 by British Telecom to allow subscribers to connect their own telephones.

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Business telephone system

A business telephone system is a multiline telephone system typically used in business environments, encompassing systems ranging from small key telephone systems to large-scale private branch exchanges.

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The Carterfone is a device invented by Thomas Carter.

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Category 5 cable

Category 5 cable, commonly referred to as Cat 5, is a twisted pair cable for computer networks.

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Code of Federal Regulations

The Code of Federal Regulations (CFR) is the codification of the general and permanent rules and regulations (sometimes called administrative law) published in the Federal Register by the executive departments and agencies of the federal government of the United States.

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Communications Act of 1934

The Communications Act of 1934 is a United States federal law, signed into law by President Franklin D. Roosevelt on June 19, 1934, and codified as Chapter 5 of Title 47 of the United States Code, et seq.

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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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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.

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Digital Equipment Corporation

Digital Equipment Corporation, also known as DEC and using the trademark Digital, was a major American company in the computer industry from the 1950s to the 1990s.

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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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DIN 47100

The German DIN Standard DIN 47100 regulated the color-coding for the identification of cores in telecommunication cables.

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Electrical conductor

In physics and electrical engineering, a conductor is an object or type of material that allows the flow of an electrical current in one or more directions.

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Electrical connector

An electrical connector, is an electro-mechanical device used to join electrical terminations and create an electrical circuit.

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The EtherCON is a ruggedized and lockable Ethernet over twisted pair wiring connector manufactured by Neutrik.

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Ethernet is a family of computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN).

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Ethernet over twisted pair

Ethernet over twisted pair technologies use twisted-pair cables for the physical layer of an Ethernet computer network.

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Fast Ethernet

In computer networking, Fast Ethernet is a collective term for a number of Ethernet standards that carry traffic at the nominal rate of 100 Mbit/s (the earlier Ethernet speed was 10 Mbit/s).

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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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Generic trademark

A generic trademark, also known as a genericized trademark or proprietary eponym, is a trademark or brand name that, due to its popularity or significance, has become the generic name for, or synonymous with, a general class of product or service, usually against the intentions of the trademark's holder.

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Gigabit Ethernet

In computer networking, Gigabit Ethernet (GbE or 1 GigE) is a term describing various technologies for transmitting Ethernet frames at a rate of a gigabit per second (1,000,000,000 bits per second), as defined by the IEEE 802.3-2008 standard.

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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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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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IEEE 802

IEEE 802 is a family of IEEE standards dealing with local area networks and metropolitan area networks.

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Integrated Services Digital Network

Integrated Services Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network.

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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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Interexchange carrier

Interexchange carrier (IXC) is a U.S. legal and regulatory term for a telecommunication company, commonly called a long-distance telephone company.

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Local exchange carrier

Local exchange carrier (LEC) is a regulatory term in telecommunications for the local telephone company. In the United States, wireline telephone companies are divided into two large categories: long distance (interexchange carrier, or IXCs) and local (local exchange carrier, or LECs).

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Manufacturing is the production of merchandise for use or sale using labour and machines, tools, chemical and biological processing, or formulation.

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Micro ribbon connector

The micro ribbon or miniature ribbon connector is a common type of electrical connector for a variety of applications, such as in computer and telecommunications equipment having many contacts.

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Modified Modular Jack

The Modified Modular Jack (MMJ) is a small form-factor serial port connector developed by Digital Equipment Corporation (DEC).

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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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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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Parallel SCSI

Parallel SCSI (formally, SCSI Parallel Interface, or SPI) is the earliest of the interface implementations in the SCSI family.

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Party line (telephony)

A party line (multiparty line, shared service line, party wire) is a local loop telephone circuit that is shared by multiple telephone service subscribers.

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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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Princess telephone

The Princess telephone was introduced by the Bell System in 1959.

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Printer (computing)

In computing, a printer is a peripheral device which makes a persistent human-readable representation of graphics or text on paper.

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Protea (telephone)

The Protea telephone plug, sometimes called simply the South African telephone plug, was widely used in South Africa from the 1970s until the 1990s.

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Pulse dialing

Pulse dialing is a signaling technology in telecommunications in which a direct current local loop circuit is interrupted according to a defined coding system for each signal transmitted, usually a digit.

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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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Rotary dial

A rotary dial is a component of a telephone or a telephone switchboard that implements a signaling technology in telecommunications known as pulse dialing.

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Standardization or standardisation is the process of implementing and developing technical standards based on the consensus of different parties that include firms, users, interest groups, standards organizations and governments Standardization can help to maximize compatibility, interoperability, safety, repeatability, or quality.

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Telecommunication is the transmission of signs, signals, messages, words, writings, images and sounds or information of any nature by wire, radio, optical or other electromagnetic systems.

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Telecommunication circuit

A telecommunication circuit is any line, conductor, or other conduit by which information is transmitted.

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Telecommunications Industry Association

The Telecommunications Industry Association (TIA) is accredited by the American National Standards Institute (ANSI) to develop voluntary, consensus-based industry standards for a wide variety of Information and Communication Technologies (ICT) products, and currently represents nearly 400 companies.

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A telephone, or phone, is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly.

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Telephone line

A telephone line or telephone circuit (or just line or circuit within the industry) is a single-user circuit on a telephone communication system.

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Telephone plug

A telephone plug is a type of connector used to connect a telephone set to the telephone wiring inside a building, establishing a connection to a telephone network.

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ANSI/TIA-568 is a set of telecommunications standards from the Telecommunications Industry Association (TIA).

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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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Title 47 CFR Part 68

Title 47 CFR Part 68 is a section of the Code of Federal Regulations of the United States that regulate the direct electrical connection of telecommunications equipment and customer premises wiring with the public switched telephone network, certain private line services, and connection of private branch exchange (PBX) equipment to certain telecommunication interfaces.

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Trimline telephone

The Trimline telephone is a series of telephones produced by Western Electric, the manufacturing unit of the Bell System, and first introduced in 1965.

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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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1A2 Key Telephone System

The 1A2 Key Telephone System is a business telephone system developed and distributed by the Western Electric Company for the Bell System.

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25-pair color code

The 25-pair color code, originally known as even-count color code, is a color code used to identify individual conductors in twisted-pair wiring for telecommunications.

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

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