Communications system

communication systemcommunication systemstelecommunications systemcommunicationscommunicationcommunications systemstelecommunication systemcommunications subsystemcommunications subsystemssystem
In telecommunication, a communications system or communication 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.wikipedia
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Telecommunication

telecommunicationscommunicationstelecom
In telecommunication, a communications system or communication 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. An optical communication system is any form of telecommunication that uses light as the transmission medium.
Overall though, a basic telecommunication system consists of three main parts that are always present in some form or another:

Optical communication

optical communicationsoptical networkingoptical network
An optical communication system is any form of telecommunication that uses light as the transmission medium.
An optical communication system uses a transmitter, which encodes a message into an optical signal, a channel, which carries the signal to its destination, and a receiver, which reproduces the message from the received optical signal.

Signal

signalselectrical signalelectrical signals
Equipment consists of a transmitter, which encodes a message into an optical signal, a communication channel, which carries the signal to its destination, and a receiver, which reproduces the message from the received optical signal.
In communication systems, signal processing, and electrical engineering, a signal is a function that "conveys information about the behavior or attributes of some phenomenon".

Communication channel

channelchannelscommunications channel
Equipment consists of a transmitter, which encodes a message into an optical signal, a communication channel, which carries the signal to its destination, and a receiver, which reproduces the message from the received optical signal.
9) In a communications system, the physical or logical link that connects a data source to a data sink.

Radio

radio communicationradio communicationswireless
A radio communication system is composed of several communications subsystems that give exterior communications capabilities.
A radio communication system requires a transmitter and a receiver, each having an antenna and appropriate terminal equipment such as a microphone at the transmitter and a loudspeaker at the receiver in the case of a voice-communication system.

Duplex (telecommunications)

half-duplexfull-duplexduplex
A duplex communication system is a system composed of two connected parties or devices which can communicate with one another in both directions.
A duplex communication system is a point-to-point system composed of two or more connected parties or devices that can communicate with one another in both directions.

Power-line communication

power line communicationpower linespowerline networking
Power line communication systems operate by impressing a modulated carrier signal on power wires.
Power-line communications systems operate by adding a modulated carrier signal to the wiring system.

Tactical communications system

A tactical communications system is a communications system that
In telecommunication, a tactical communications system is a communications system that (a) is used within, or in direct support of, tactical forces, (b) is designed to meet the requirements of changing tactical situations and varying environmental conditions, (c) provides securable communications, such as voice, data, and video, among mobile users to facilitate command and control within, and in support of, tactical forces, and (d) usually requires extremely short installation times, usually on the order of hours, in order to meet the requirements of frequent relocation.

Automatic call distributor

automatic call distributionACDACD splits
An Automatic call distributor (ACD) is a communication system that automatically queues, assigns and connects callers to handlers.
Communications system

Information transfer

communicationstransferconvey
In telecommunication, a communications system or communication 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.

Transmission (telecommunications)

transmissiontransmittransmissions
In telecommunication, a communications system or communication 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.

Relay

relayslatching relayelectric relay
In telecommunication, a communications system or communication 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.

Data

statistical datascientific datadatum
In telecommunication, a communications system or communication 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.

Terminal equipment

terminus
In telecommunication, a communications system or communication 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.

Data terminal equipment

DTEData Terminal Equipment (DTE)DTEs
In telecommunication, a communications system or communication 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.

Interconnection

interconnectinterconnectivityinterconnected
In telecommunication, a communications system or communication 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.

Interoperation

In telecommunication, a communications system or communication 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.

System

systemssubsystemsubsystems
The components of a communications system serve a common purpose, are technically compatible, use common procedures, respond to controls, and operate in union.

Broadcasting

broadcastbroadcasterbroadcasters
Telecommunications is a method of communication (e.g., for sports broadcasting, mass media, journalism, etc.).

Mass media

mediapressmedia company
Telecommunications is a method of communication (e.g., for sports broadcasting, mass media, journalism, etc.).

Journalism

journalistreportagejournalistic
Telecommunications is a method of communication (e.g., for sports broadcasting, mass media, journalism, etc.).

Light

visible lightvisiblelight source
An optical communication system is any form of telecommunication that uses light as the transmission medium. Fiber-optic communication systems transmit information from one place to another by sending light through an optical fiber.

Fiber-optic communication

fiber-opticfiber-optic networkfiber optic communication
Fiber-optic communication systems transmit information from one place to another by sending light through an optical fiber.

Optical fiber

fiber opticfiber opticsfibre optic
Fiber-optic communication systems transmit information from one place to another by sending light through an optical fiber.

Carrier wave

carriercarrier signalcarriers
The light forms a carrier signal that is modulated to carry information.