Telephone plug

Telephone plug

A telephone plug is a plug which allows a telephone to connect to the local telephone network. It plugs into a socket or jack fixed to the wall or baseboard. The standard for telephone plugs varies from country to country though the RJ11 has become by far the most common.Other types resembling the Registered jack series, used for Ethernet connectors, cause confusion when users don't know the difference. Such jacks are also seen on the body of phones.Historically the telephone was often owned by the supplier and permanently wired in to the telephone line they supplied but as phone markets became more deregulated there was a need for a simple plug in interface that consumers could use. Many countries initially used their own connectors. For example Bell System companies in the 1960s used a round plug about 40mm in diameter with four prongs about 15mm apart. National connectors remain in service but few are used for new installations.

Sometimes the same connector is used by different countries but wired in different ways, for example telephones in the UK typically use a cord with a BT style plug on one end and a "RJ 11" 6P4C connected to the other but this connector is often wired in the same way as the BT plug rather than according to the RJ11 standard.

List of countries and territories, with the plugs they use

This list covers only single line telephone plugs commonly used in homes and other small installations. Special telephone sets use a variety of special plugs, for example micro ribbon for key telephone systems and the wide array of registered jacks.

ee also

* 4P4C handset plug
* Power plugs/sockets by country
* Telephone network box

External links

* [ Telephone plug list] — at Steve Kropla's World Wide Phone Guide
* [ International telephone adaptors]

Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • telephone plug — noun a plug for connecting a telephone • Syn: ↑phone plug • Hypernyms: ↑plug, ↑male plug …   Useful english dictionary

  • Danish telephone plug — Danish Telephone plugs, from left to right: Shallow wall socket with modern thin plug, shallow wall socket with earlier 18mm plug, shallow wall socket with RJ11 Telephone adapter (doesn t fit due to cable duct below), normal size RJ11 wall socket …   Wikipedia

  • Plug board — may refer to:* Plug board, used to program unit record equipment and some early computers * Plugboard, a component of certain encryption machines * Telephone switchboard, another name for a manual See also: * Patch panel * Plug * Perforated… …   Wikipedia

  • Telephone exchange — A telephone operator manually connecting calls with cord pairs at a telephone switchboard. In the field of telecommunications, a telephone exchange or telephone switch is a system of electronic components that connects telephone calls. A central… …   Wikipedia

  • Telephone switchboard — PBX switchboard, 1975 A switchboard (also called a manual exchange) was a device used to connect a group of telephones manually to one another or to an outside connection, within and between telephone exchanges or private branch exchanges (PBXs) …   Wikipedia

  • telephone — telephoner, n. /tel euh fohn /, n., v., telephoned, telephoning. n. 1. an apparatus, system, or process for transmission of sound or speech to a distant point, esp. by an electric device. v.t. 2. to speak to or summon (a person) by telephone. 3.… …   Universalium

  • Telephone tapping — Wiretap redirects here. For the radio program, see WireTap (radio program). Telephone tapping (also wire tapping or wiretapping in American English) is the monitoring of telephone and Internet conversations by a third party, often by covert means …   Wikipedia

  • Telephone number — A telephone number or phone number is a sequence of digits used to call from one telephone line to another in a public switched telephone network. When telephone numbers were invented, they were short as few as one, two or three digits and were… …   Wikipedia

  • Swedish telephone plugs & sockets — A standard Swedish telephone plug carries one telephone line and has four flat metal pins and one plastic pin. The design is only used in Sweden and older installations in Iceland (RJ11 and a data/voice standard using an 8P8C modular connector… …   Wikipedia

  • phone plug — noun a plug for connecting a telephone • Syn: ↑telephone plug • Hypernyms: ↑plug, ↑male plug …   Useful english dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”