This scheme combined the advantages of SDH technology and ATM technology, improved adaptation efficiency from DVB signal to SDH network, and satisfied HFC modulation mode's flexibility.
该方案结合SDH技术和AT M技术两者的优点，提高了DVB信号适配到SDH网络的适配效率，同时满足了HFC不同调制方式的灵活性。
SDH has been greatly developed and used as a new transmission technology in the world.
SDH作为新的一代传输技术，已得到了各国的大力开发和应用。
SDH is made from SDH network unit. Its basement of transmission technology is frame structure whose net functions include normal management, trouble management and property management and so on.
SDH由SDH网络单元组成，其传输技术基础是帧结构，其网络功能包括一般性管理、故障管理、性能管理、配置管理、安全管理。
The paper mainly introduced compatibility and its plan of RPR technology and expressway SDH transmission system.
主要介绍RPR技术与现在的高速公路SDH传输系统的兼容，以及实现兼容的方案。
By utilizing the advantages of self-healing function that SDH ring network has, the paper analyzes the networking technology and MSP mechanism in detail.
利用SDH环形网络具有自愈能力的优点，详细分析了组网技术及复用段保护机制。
The bandwidth allocation on demands will become reality when the technology of statistics & time multiplexing is applied to SDH equipment.
统计时分复用技术应用于SDH设备可实现带宽的按需分配。
Packet transport network (PTN) is a convergence network of SDH and IP. Under the background of full services operation, this technology represents the development trend of transmission network.
分组传送网是网络融合的产物，在电信行业全业务运营背景下，这一技术代表了传送承栽网络的IP化发展趋势。
The access network and inter-exchange transport of the PSTN use synchronous optical transmission (SONET and SDH) technology, although some parts still use the older PDH technology.
PSTN中的接入网和内部交换台传送器采用的是同步光纤传输(SONET和SDH)技术，但也有某些地区仍采用过去的PD H技术。
We use this approach to analyse the SDH telecommunication software which was developed by Lucent Technology Optical Network Company and get high predicting accuracy.
用这种方法对朗讯光网络有限公司开发的SDH通信软件进行了分析，并得到了较高的预测准确率。
We use this approach to analyse the SDH telecommunication software which was developed by Lucent Technology Optical Network Company and get high predicting accuracy.
用这种方法对朗讯光网络有限公司开发的SDH通信软件进行了分析，并得到了较高的预测准确率。
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