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PON拓扑在许多方面与传统网络不同,当使用OTDR测试链路特性时面临新的挑战。能够用于测试PON的OTDR的特征包括能够利用相对短的脉冲、灵
PON topologies differ in many ways from traditional networks, and present new challenges when testing link characteristics using OTDR. Features that can be used to test PON’s OTDR include the ability to utilize relatively short pulses, spines