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Glite Dictionary
💻 A virtual network 🔌 A test connector 🔄 A test process
loopback

loopback

1 6.5
A cable or connector that sends a device's output back into its input for testing
  • noun
  • /ˈluːpˌbæk/
  • Specialized
: bucle de retorno
  • The engineer used a loopback cable to check if the network port was functioning correctly.

Examples

  • A loopback test can help identify problems in communication hardware without external devices.

  • The loopback test confirmed that the device was functioning properly.

  • Before shipping the equipment, technicians performed a loopback to ensure all signals were transmitted properly.

  • Can you explain what a loopback is?

  • The technician used a loopback connector to diagnose the network issue by routing the signal back into the device.

  • For testing purposes, they set up a loopback cable to ensure that the output signal was received correctly.

  • To troubleshoot the device, he connected the loopback adapter to confirm it could send and receive data.

Synonyms

loop
vsloopback
  • Specialized
74 4.9

A closed path where electric current or signals flow

routes a device output back into its input for testing
feedback loop
vsloopback
  • Specialized
17 4.2

A system where part of what it makes is sent back to change how it works

routes output back to input primarily for testing rather than control
feedback circuit
vsloopback
  • Specialized
1 6.0

An electrical circuit that sends part of its output back to its input to control how it works

routes output back to input specifically for testing and diagnosis

Surface Forms

loopback singular
loopbacks plural

Morphology

loopback = loop (transparent) = back + loop

A straightforward compound of 'loop' + 'back' meaning routing/output returned to input, which is directly inferable from the components. [Postprocessing: moved 'back' from base_words to prefix]

Etymology

Loopback comes from loop ('a circle or ring') and back ('return'), so you can picture a cable making a circle to bring a device's output back into its input. That's why a loopback connector or cable is used to feed signals back for testing.