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this chapter describes the procedure and common problems of the OTDR test tools and materials used for the test include the OTDR tester test fiber dust free paper and alcohol now letamp;#39;s introduce the preparations for the test clean the end surface of the test farmer use a piece of dust free paper dipped in alcohol to wipe the end of the connector two to three times connect the two test fibers using an adapter clean the end of the FC connector which is connected to the OTDR port test father connect OTDR the teeth of the test father connection OTDR connector should be aligned with the slot of the OTDR output port fasten the cables after they are properly installed click the OTDR mark on the testers display set parameters set the transmission distance pulse width and average duration for details about how to set parameters see the setting principles set the refractive index wavelength provided by the optical cable manufacturer select the wavelength again the tester machine used thi
