OnvianTech IPC4300ADH User Manual page 70

Ip camera tester
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3.Click "+"or"-" to adjust wave speed ,while display length is the same with the actual Length ,click
"Save"to save calibration data ,It can be used for the same cable testing next time.
Application:TDR test is the use of pulse reflection method, to transmit pulse signal for tested cable,
when cable is disconnected or short-circuit, reflected pulse is generated, the tester receives and deals
with the reflected wave, measurement results displayed on the screen. TDR cable test can test cable
length and short circuit, help engineer quickly find the cable's problem location. It is more convenient
and efficient to repair the faulty cable.
Note:The TDR reflect signal could be affected by the cable quality/ cable's not well
connected etc to cause the different TDR measurement. The TDR measurement is for reference
only.
page 66

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