摘要:PTN(Packet Transport Network)是一种以分组作为传送单位,兼容TDM、ATM和FC等业务的综合传送技术。结合目前主要的铁路通信传送网技术PCM、SDH、MSTP和WDM,探讨PTN技术在铁路传送网的应用发展。
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