作者: Kumar Vijay Peddanarappagari , Paparao Palacharla
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摘要: A method for protection switching includes receiving an optical signal from a transponder coupled to client and optically splitting the first output second output. The is by add-drop multiplexer fiber, fiber. further selecting one of signals working channel, communicating selected network. During communication network, monitoring failure condition in network and, if detected, other as channel new signal.