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When testing with the wavelength of 1310nm, 1490nm, and 1550nm of ordinary OTDR, it is necessary to require that there is no communication light signal in the measured line. Forcibly Live Testing will burn the internal detector of the OTDR. Live testing is when testing, you can stop the light signal in the line, and OTDR can still complete the test.

Today, fiber-optic cable in data centers and information centers can be found everywhere, almost the backbone of the network are dominated by fiber. When we are happy for the network speed increase, we have to face the accompanying fiber optic failure of all kinds.

Optical Time-Domain Reflectometers (OTDRs) are essential tools for measuring the performance and integrity of optical fiber networks. OTDRs are used to diagnose faults, measure attenuation, and verify the integrity of fiber optic links. However, with so many OTDRs on the market, it can be challengin