loopback

Definitions

Computing

  • noun a diagnostic test that returns the transmitted signal to the sending device after it has passed through another device or across a link

Electronics

  • A diagnostic test in which a transmitted signal is returned to its source for error analysis. The signal may pass through the entire network, a given segment, set points, and so on. Utilized, for instance, to troubleshot communications networks. Also spelled loop back. Also called loopback test.
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