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Definition of "Loop" |
A curved conductor that connects the ends of a coaxial cable or other transmission line and projects into a waveguide or resonant cavity for the purpose of injecting or extracting energy. A communications channel from a switching center or an individual message distribution point to the user terminal. / In telecommunication, loopback, or a loop, is a hardware or software method which feeds a received signal or data back to the sender. It is used as an aid in debugging physical connection problems. As a test, many data communication devices can be configured to send specific patterns such as all ones on an interface and can detect the reception of this signal on the same port. This is called a loopback test and can be performed within a modem or transceiver by connecting its output to its own input. A circuit between two points in different locations may be tested by applying a test signal on the circuit in one location, and having the network device at the other location send a signal back through the circuit. If this device receives its own signal back, this proves that the circuit is functioning. / A semiconductor crystal of nanometre dimensions with distinctive conductive properties determined by its size. / (1) a set of branches forming a closed current path, provided that the omission of any branch eliminates the closed path. |
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