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3.3.21 RJ45 cable TDR test
Connect cable to tester's LAN port, click icon
to enter RJ45 cable TDR test app.
Single test: test cable status, length and attenuation.
Repeat test: continue to test cable status, length and attenuation.
Status: after link up, screen display "online", if not link up or open circuit, screen display "open
circuit", if cable pair is short circuit, screen display "short circuit".
Length: the max test length is 180 meters, when cable is open circuit or short circuit, can test the cable
length, if screen display "online", the testing result would be not accurate.
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