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SDH是一项成熟的传输技术 ,它可为不同的业务和传输类型提供灵活的传输煤介 ;ATM主要用于数据网络组建 ,它能很好地处理突发业务 ,并可以在SDH中以VC - 4净负荷形式传输ATM信元 ;光层使用WDM技术 ,可使点对点系统容量增加 ,这既节省光纤又提高传输速率。本文着重讨论了SDH ,ATM及光层技术在实际中的应用组合 ,希望能对油田通信工程技术人员的实际工人有所帮助。
SDH is a mature transmission technology, which can provide flexible transmission media for different services and transmission types. ATM is mainly used for data network establishment. It can deal with burst services well and can use VC - 4 payload ATM cell transmission mode; optical layer using WDM technology allows point-to-point system capacity increase, which saves fiber and increase the transmission rate. This article focuses on the SDH, ATM and optical technology in the actual application portfolio, hoping to oil field communications engineering and technical personnel of the actual workers helpful.