How does a lan tester determine the meter where the break is?

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Vadim Apenko2015-07-31 11:15:51

Computer networks

Vadim Apenko, 2015-07-31 11:15:51

Here is a stupid question, but it’s crazy interesting)
More than once I came across lan-testers or switches that find a break and show at what meter the break is. How will he know? Now the brain is broken.

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throughtheether, 2015-07-31
@k4m454k

How will he know?

Pulse reflectometry ( link1 , link2 ).