The height of each point in theOTDRcurve represents the backscattered light intensity at that location. When looking at the OTDR curve, you can see that the reflected signal is raised in some places, as if the optical po···

Knowledge of OTDR extension cableTheOTDRextension cable is similar to the optical fiber jumper. There is no fusion point in the middle of the optical fiber. During the optical fiber test, the OTDR extension cable is the ···

The difference between the two is that the pigtail is used to connect the optical cable and the jumper, and the jumper is to connect the pigtail and the terminal equipment.Optical fiber jumperis a jumper used from equipm···

When testing with the wavelengths of 1310nm, 1490nm and 1550nm of common OTDR, it is necessary to require that there is no communication optical signal in the line under test. Forcing the test with light will burn out th···

ONU (Optical Network Unit) ， ONU is divided into active optical network unit and passive optical network unit. Generally, the equipment equipped with network monitoring including optical receiver, uplink optical transmi···