30 relations: American wire gauge, Automated main distribution frame, Business telephone system, Combined distribution frame, COSMOS (telecommunications), Cross-linked polyethylene, Digital subscriber line access multiplexer, Distributed switching, Distribution frame, Electrical wiring, Heat coil, Inside plant, Intermediate distribution frame, Local loop, Operations support system, Outside plant, Pair gain, Patch panel, Polyethylene, Punch-down block, Repeater, Soldering, Telephone exchange, Telephone line, Telephony, Test point, Trunking, Twisted pair, User (telecommunications), Wire wrap.
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.
Automated main distribution frame (AMDF), (automated switching matrix, automated distribution frame, loop management system (LMS)), a technology to provide connectivity between subscriber (local loop, outside plant) – and office equipment (inside plant) lines in a telephone exchange (central office, CO) main distribution frame (MDF).
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.
In telecommunication, a combined distribution frame (CDF) is a distribution frame that combines the functions of main and intermediate distribution frames and contains both vertical and horizontal terminating blocks.
COSMOS (computer system for main frame operations) was a record-keeping system for main distribution frames (MDFs) in the Bell System, the American Bell Telephone Company and then, subsequently, AT&T–led system which provided telephone services to much of the United States and Canada from 1977 to 1984.
Cross-linked polyethylene, commonly abbreviated PEX, XPE or XLPE, is a form of polyethylene with cross-links.
A digital subscriber line access multiplexer (DSLAM, often pronounced DEE-slam) is a network device, often located in telephone exchanges, that connects multiple customer digital subscriber line (DSL) interfaces to a high-speed digital communications channel using multiplexing techniques.
Distributed switching is an architecture in which multiple processor-controlled switching units are distributed.
In telecommunications, a distribution frame is a passive device which terminates cables, allowing arbitrary interconnections to be made.
Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets and light fittings in a structure.
Heat coils, also known as protectors, bugs or carbons serve as a surge protector between the telephone exchange and outside plant.
In telecommunication, the term inside plant has the following meanings.
An intermediate distribution frame (IDF) is a distribution frame in a central office or customer premises, which cross-connects the user cable media to individual user line circuits and may serve as a distribution point for multipair cables from the main distribution frame (MDF) or combined distribution frame (CDF) to individual cables connected to equipment in areas remote from these frames.
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.
Operations support systems (OSS), or operational support systems in British usage, are computer systems used by telecommunications service providers to manage their networks (e.g., telephone networks).
In telecommunication, the term outside plant has the following meanings.
In telephony, pair gain is the transmitting of multiple POTS signals over the twisted pairs traditionally used for a single traditional subscriber line in telephone systems.
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.
Polyethylene or polythene (abbreviated PE; IUPAC name polyethene or poly(ethylene)) is the most common plastic.
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.
In telecommunications, a repeater is an electronic device that receives a signal and retransmits it.
Soldering (AmE:, BrE), is a process in which two or more items (usually metal) are joined together by melting and putting a filler metal (solder) into the joint, the filler metal having a lower melting point than the adjoining metal.
A telephone exchange is a telecommunications system used in the public switched telephone network or in large enterprises.
A telephone line or telephone circuit (or just line or circuit within the industry) is a single-user circuit on a telephone communication system.
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.
A test point is a location within an electronic circuit that is used to either monitor the state of the circuitry or to inject test signals.
In telecommunications, trunking is a method for a system to provide network access to many clients by sharing a set of lines or frequencies instead of providing them individually.
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.
In telecommunications, a user is a person, organization, or other entity that employs the services provided by a telecommunication system, or by an information processing system, for transfer of information.
Wire wrap was invented to wire telephone crossbar switches, and later adapted to construct electronic circuit boards.