73 relations: Alexander Graham Bell, American wire gauge, AT&T Corporation, Attenuation, Balanced circuit, Balanced line, Balun, Bandwidth (signal processing), Baseband, Belden (electronics company), BNC connector, Cable television, Category 1 cable, Category 2 cable, Category 3 cable, Category 4 cable, Category 5 cable, Category 6 cable, Closed-circuit television, Coaxial cable, Common-mode signal, Computer network, Copper, Copper conductor, Crosstalk, Differential signaling, Electrical cable, Electromagnetic compatibility, Electromagnetic interference, Electromagnetic radiation, Electronic circuit, Ethernet, Ethernet over twisted pair, Fiber Distributed Data Interface, Fluorinated ethylene propylene, General Post Office, Gigabit Ethernet, IBM 3270, Inductance, Insulation-displacement connector, ISO/IEC 11801, Kilometre, Lawsuit, Litz wire, Loading coil, Metre, Mile, Optical fiber, Outside plant, Overhead power line, ..., Plain old telephone service, Polyethylene, Printed circuit board, Registered jack, Ribbon cable, Screw terminal, Single-ended signaling, Single-wire earth return, Star quad cable, Telephone, Telephone line, Television, TIA/EIA-568, Tip and ring, Token ring, Tram, Transposition (telecommunications), Utility pole, Video, Voice frequency, 10 Gigabit Ethernet, 100 Gigabit Ethernet, 25-pair color code. Expand index (23 more) » « Shrink index
Alexander Graham Bell (March 3, 1847 – August 2, 1922) was a Scottish-born scientist, inventor, engineer, and innovator who is credited with inventing and patenting the first practical telephone.
American wire gauge (AWG), also known as the Brown & Sharpe wire gauge, is a logarithmic stepped standardized wire gauge system used since 1857 predominantly in North America for the diameters of round, solid, nonferrous, electrically conducting wire.
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.
In physics, attenuation or, in some contexts, extinction is the gradual loss of flux intensity through a medium.
A balanced circuit is circuitry for use with a balanced line or the balanced line itself.
In telecommunications and professional audio, a balanced line or balanced signal pair is a transmission line consisting of two conductors of the same type, each of which have equal impedances along their lengths and equal impedances to ground and to other circuits.
A balun (for balanced to unbalanced) is an electrical device that converts between a balanced signal (two signals working against each other where ground is irrelevant) and an unbalanced signal (a single signal working against ground or pseudo-ground).
Bandwidth is the difference between the upper and lower frequencies in a continuous band of frequencies.
Baseband is a signal that has a very narrow and near-zero frequency range, i.e. a spectral magnitude that is nonzero only for frequencies in the vicinity of the origin (termed f.
Belden Incorporated is an American manufacturer of networking, connectivity, and cable products.
The BNC (Bayonet Neill–Concelman) connector is a miniature quick connect/disconnect radio frequency connector used for coaxial cable.
Cable television is a system of delivering television programming to paying subscribers via radio frequency (RF) signals transmitted through coaxial cables, or in more recent systems, light pulses through fiber-optic cables.
Category 1 cable, also known as Cat 1, Level 1, or voice-grade copper, is a grade of unshielded twisted pair cabling designed for telephone communications, and at one time was the most common on-premises wiring.
Category 2 cable, also known as Cat 2, is a grade of unshielded twisted pair cabling designed for telephone and data communications.
Category 3 cable, commonly known as or station wire, and less commonly known as VG or voice-grade (as, for example, in 100BaseVG), is an unshielded twisted pair (UTP) cable used in telephone wiring.
Category 4 cable (Cat 4) is a cable that consists of four unshielded twisted pair (UTP) copper wires supporting signals up to 20 MHz.
Category 5 cable, commonly referred to as Cat 5, is a twisted pair cable for computer networks.
Category 6 cable, commonly referred to as Cat 6, is a standardized twisted pair cable for Ethernet and other network physical layers that is backward compatible with the Category 5/5e and Category 3 cable standards.
Closed-circuit television (CCTV), also known as video surveillance, is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors.
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.
Common-mode signal is the component of an analog signal which is present with one sign on all considered conductors.
A computer network, or data network, is a digital telecommunications network which allows nodes to share resources.
Copper is a chemical element with symbol Cu (from cuprum) and atomic number 29.
Copper has been used in electrical wiring since the invention of the electromagnet and the telegraph in the 1820s.
In electronics, crosstalk is any phenomenon by which a signal transmitted on one circuit or channel of a transmission system creates an undesired effect in another circuit or channel.
Differential signaling is a method for electrically transmitting information using two complementary signals.
An electrical cable is an assembly of one or more wires running side by side or bundled, which is used to carry electric current.
Electromagnetic compatibility (EMC) is the branch of electrical engineering concerned with the unintentional generation, propagation and reception of electromagnetic energy which may cause unwanted effects such as electromagnetic interference (EMI) or even physical damage in operational equipment.
Electromagnetic interference (EMI), also called radio-frequency interference (RFI) when in the radio frequency spectrum, is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrostatic coupling, or conduction.
In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space-time, carrying electromagnetic radiant energy.
An electronic circuit is composed of individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected by conductive wires or traces through which electric current can flow.
Ethernet is a family of computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN).
Ethernet over twisted pair technologies use twisted-pair cables for the physical layer of an Ethernet computer network.
Fiber Distributed Data Interface (FDDI) is a standard for data transmission in a local area network.
Fluorinated ethylene propylene or FEP is a copolymer of hexafluoropropylene and tetrafluoroethylene.
The General Post Office (GPO) was officially established in England in 1660 by Charles II and it eventually grew to combine the functions of state postal system and telecommunications carrier.
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.
The IBM 3270 is a class of block oriented computer terminal (sometimes called display devices) introduced by IBM in 1971 normally used to communicate with IBM mainframes.
In electromagnetism and electronics, inductance is the property of an electrical conductor by which a change in electric current through it induces an electromotive force (voltage) in the conductor.
An insulation-displacement contact (IDC), also known as insulation-piercing contact (IPC), is an electrical connector designed to be connected to the conductor(s) of an insulated cable by a connection process which forces a selectively sharpened blade or blades through the insulation, bypassing the need to strip the conductors of insulation before connecting.
International standard ISO/IEC 11801 Information technology — Generic cabling for customer premises specifies general-purpose telecommunication cabling systems (structured cabling) that are suitable for a wide range of applications (analog and ISDN telephony, various data communication standards, building control systems, factory automation).
The kilometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: km; or) or kilometer (American spelling) is a unit of length in the metric system, equal to one thousand metres (kilo- being the SI prefix for). It is now the measurement unit used officially for expressing distances between geographical places on land in most of the world; notable exceptions are the United States and the road network of the United Kingdom where the statute mile is the official unit used.
A lawsuit (or suit in law) is "a vernacular term for a suit, action, or cause instituted or depending between two private persons in the courts of law." A lawsuit is any proceeding by a party or parties against another in a court of law.
Litz wire is a type of specialized multistrand wire or cable used in electronics to carry alternating current (AC) at radio frequencies.
A loading coil or load coil is an inductor that is inserted into an electronic circuit to increase its inductance.
The metre (British spelling and BIPM spelling) or meter (American spelling) (from the French unit mètre, from the Greek noun μέτρον, "measure") is the base unit of length in some metric systems, including the International System of Units (SI).
The mile is an English unit of length of linear measure equal to 5,280 feet, or 1,760 yards, and standardised as exactly 1,609.344 metres by international agreement in 1959.
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.
In telecommunication, the term outside plant has the following meanings.
An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy along large distances.
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.
Polyethylene or polythene (abbreviated PE; IUPAC name polyethene or poly(ethylene)) is the most common plastic.
A printed circuit board (PCB) mechanically supports and electrically connects electronic components or electrical components using conductive tracks, pads and other features etched from one or more sheet layers of copper laminated onto and/or between sheet layers of a non-conductive substrate.
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.
A ribbon cable (also known as multi-wire planar cable) is a cable with many conducting wires running parallel to each other on the same flat plane.
A screw terminal is a type of electrical connector where a wire is held by the tightening of a screw.
Single-ended signaling is the simplest and most commonly used method of transmitting electrical signals over wires.
Single-wire earth return (SWER) or single-wire ground return is a single-wire transmission line which supplies single-phase electric power from an electrical grid to remote areas at low cost.
Star-quad cable is a four conductor cable that has a special quadrupole geometry that provides magnetic immunity when used in a balanced line.
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.
A telephone line or telephone circuit (or just line or circuit within the industry) is a single-user circuit on a telephone communication system.
Television (TV) is a telecommunication medium used for transmitting moving images in monochrome (black and white), or in colour, and in two or three dimensions and sound.
ANSI/TIA-568 is a set of telecommunications standards from the Telecommunications Industry Association (TIA).
Tip and ring are the names of the two conductors or sides of a telephone line.
MAU b) Using several MAUs connected to each other Token ring network IBM hermaphroditic connector with locking clip Token Ring local area network (LAN) technology is a communications protocol for local area networks.
A tram (also tramcar; and in North America streetcar, trolley or trolley car) is a rail vehicle which runs on tramway tracks along public urban streets, and also sometimes on a segregated right of way.
Transposition is the periodic swapping of positions of the conductors of a transmission line, in order to reduce crosstalk and otherwise improve transmission.
A utility pole is a column or post used to support overhead power lines and various other public utilities, such as electrical cable, fiber optic cable, and related equipment such as transformers and street lights.
Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media.
A voice frequency (VF) or voice band is one of the frequencies, within part of the audio range, that is being used for the transmission of speech.
10 Gigabit Ethernet (10GE, 10GbE, or 10 GigE) is a group of computer networking technologies for transmitting Ethernet frames at a rate of 10 gigabits per second.
40 Gigabit Ethernet (40GbE) and 100 Gigabit Ethernet (100GbE) are groups of computer networking technologies for transmitting Ethernet frames at rates of 40 and 100 gigabits per second (Gbit/s), respectively.
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.
Foiled twisted pair, Foiled twisted-pair, Nonloaded twisted pair, Phone cable, S/stp, STP cable, Screened Shielded Twisted Pair, Screened fully shielded twisted pair, Screened fully-shielded twisted pair, Screened shielded twisted pair, Shielded Twisted Pair, Shielded pair, Shielded twisted pair, TP cable, Twisted Pair, Twisted Wires, Twisted pair cable, Twisted pair wire, Twisted wire, Twisted wire pair, Twisted-pair, Twisted-pair cable, UTP Ethernet, UTP cable, Unshielded Twisted Pair, Unshielded Twisted Pair Ethernet, Unshielded twisted pair, Unshieled twisted pair.