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OTDRGPS,,30%~40%,20%~30%,,,15,2,,,300mm,100mm,,,30CM,,,,,,,,30,,,,5500mm,,:,1PVC2PVC3PVC75,,2.55m;3.510m,,,BNC,,35m/s1m,,2.52.535CM300.5ODFODFODF1550nm0.25db/km1310nm0.36db/kmOTDR
