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12 relations: Asynchronous transfer mode, Carrier system, Communications system, Digital Signal 1, Digital Signal 3, Ethernet, Operations, administration and management, Pilot signal, Plesiochronous system, Synchronous circuit, Synchronous optical networking, Telephone exchange.
Asynchronous transfer mode
Asynchronous transfer mode (ATM) is, according to the ATM Forum, "a telecommunications concept defined by ANSI and ITU (formerly CCITT) standards for carriage of a complete range of user traffic, including voice, data, and video signals".
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Carrier system
A carrier system is a telecommunications system that transmits information, such as the voice signals of a telephone call and the video signals of television, by modulation of one or multiple carrier signals above the principal voice frequency or data rate.
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Communications system
In telecommunication, a communications system is a collection of individual communications networks, transmission systems, relay stations, tributary stations, and data terminal equipment (DTE) usually capable of interconnection and interoperation to form an integrated whole.
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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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Digital Signal 3
A Digital Signal 3 (DS3) is a digital signal level 3 T-carrier.
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Ethernet
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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Operations, administration and management
Operations, administration and management or operations, administration and maintenance (OA&M or OAM) are the processes, activities, tools, and standards involved with operating, administering, managing and maintaining any system.
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Pilot signal
In telecommunications, a pilot signal is a signal, usually a single frequency, transmitted over a communications system for supervisory, control, equalization, continuity, synchronization, or reference purposes.
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Plesiochronous system
In telecommunications, a plesiochronous system is one where different parts of the system are almost, but not quite, perfectly synchronised.
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Synchronous circuit
A synchronous circuit is a digital circuit in which the changes in the state of memory elements are synchronized by a clock signal.
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Synchronous optical networking
Synchronous optical networking (SONET) and synchronous digital hierarchy (SDH) are standardized protocols that transfer multiple digital bit streams synchronously over optical fiber using lasers or highly coherent light from light-emitting diodes (LEDs).
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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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AIS-L, AIS-P, Alarm indication signal line, Alarm indication signal path.
