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Encyclopedia > Jam signal

In telecommunication, a jam signal is a signal that carries a bit pattern sent by a data station to inform the other stations that they must not transmit. BlackBerry 7100t Telecommunication is the extension of communication over a distance. ... Signaling, or a signal, may mean: Scientific concepts In information theory, a signal is a flow of information that can be represented as a mathematical function. ... A bit (abbreviated b) is the most basic information unit used in computing and information theory. ... A datum is a statement accepted at face value (a given). Data is the plural of datum. ...


Note 1: In carrier sense multiple access with collision detection (CSMA/CD) networks, the jam signal indicates that a collision has occurred. In computer networking, Carrier Sense Multiple Access With Collision Detection (CSMA/CD) is a network control protocol in which (a) a carrier sensing scheme is used and (b) a transmitting data station that detects another signal while transmitting a frame, stops transmitting that frame, transmits a jam signal, and then... Physical collision Dynamics Deflection happens when an object hits a plane surface In physics, collision means the action of bodies striking or coming together (touching). ...


Note 2: In carrier sense multiple access with collision avoidance (CSMA/CA) networks, the jam signal indicates that the sending station intends to transmit. In computer networking, Carrier Sense Multiple Access With Collision Avoidance (CSMA/CA) is a network control protocol in which: a carrier sensing scheme is used, a data station that intends to transmit sends a jam signal after waiting a sufficient time for all stations to receive the jam signal, the...


Note 3: "Jam signal" should not be confused with "electronic jamming." Jamming is an electronic warfare (EW) technique to limit the effectiveness of an opponents communications and/or detection equipment. ...


Source: from Federal Standard 1037C Federal Standard 1037C entitled Telecommunications: Glossary of Telecommunication Terms is a U.S. Federal Standard, issued by the General Services Administration pursuant to the Federal Property and Administrative Services Act of 1949, as amended. ...


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