In telecommunication a data link is the means of connecting one location to another for the purpose of transmitting and receiving data. It can also be an assembly, consisting of parts of two data terminal equipments (DTEs) and the interconnecting data circuit, that is controlled by a link protocol enabling data to be transferred from a data source to a data sink. Copy of the original phone of Alexander Graham Bell at the Musée des Arts et Métiers in Paris Telecommunication is the transmission of signals over a distance for the purpose of communication. ... This article does not cite any references or sources. ... Datalink Corporation (NASDAQ: DTLK) is an American data storage corporation with operations throughout the United States. ... The Open Systems Interconnection Basic Reference Model (OSI Reference Model or OSI Model for short) is a layered, abstract description for communications and computer network protocol design, developed as part of the Open Systems Interconnection (OSI) initiative. ... This article does not cite any references or sources. ... Copy of the original phone of Alexander Graham Bell at the Musée des Arts et Métiers in Paris Telecommunication is the transmission of signals over a distance for the purpose of communication. ... For other uses, see Data (disambiguation). ... In the context of telecommunications, a terminal is a device which is capable of communicating over a line. ... A telecommunication circuit is defined as follows: The complete path between two terminals over which one-way or two-way communications may be provided. ... In communications, the transmission of a unit of data from one node to another (OSI layer 2). ... In plumbing, sink. ...

In aviation, a data link system (known as Controller Pilot Data Link Communications) is used to send information between aircraft and air traffic control when an aircraft is too far from the ATC to make voice radio communication and radar possible. Such systems are used for aircraft crossing the Atlantic and Pacific oceans. One such system, used by NavCanada and NATS over the north atlantic uses a 5 digit data link sequence number which is confirmed between air traffic control and the pilots of the aircraft before the aircraft proceeds to cross the ocean. This system uses the aircraft's flight management computer to send location, speed and altitude information about the aircraft to the ATC. ATC can then send messages to the aircraft regarding any necessary change of course. Controller Pilot Data Link Communications (CPDLC), also referred to as Controller Pilot Data Link (CPDL) is a method by which air traffic controllers can communicate with pilots over a datalink system. ... For the Canadian musical group, see Air Traffic Control (band). ... For other uses, see Radar (disambiguation). ... The Atlantic Ocean is Earths second-largest ocean, covering approximately one_fifth of its surface. ... For other meanings of Pacific, see Pacific (disambiguation). ... NAV CANADA is a privately-owned corporation that owns Canadas civil air navigation service. ... NATS can refer to: National Air Traffic Services National Association of Teachers of Singing Next-Generation Administration and Tracking System ... A Flight Managment System is a little computer onboard almost every aircraft that will guide the aircraft to it designated destination. ...

In unmanned aircraft or vehicles, the data link is used to send command and control (C2) signals and receive telemetry.

See also

• TADIL
• Unmanned Aircraft System

Tactical Digital Information Links (TADILs) are standardized radio data communication links used by the U.S. armed forces. ... Unmanned Aircraft System (UAS) is the term introduced by DoD and adopted by the FAA to replace the term UAV. The UAS is composed of the Unmanned Aircraft (UA), the Control System, and the Datalink. ...

Sources

• Federal Standard 1037C
• MIL-STD-188
• Department of Defense Dictionary of Military and Associated Terms