文档介绍：摘要
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摘要
同步数字体系(Synnchronous Digital Hierarchy SDH)是一种新的传输体制， 广泛地运用于实用的光纤通信系统中。高度发达的信息社会要求通信网能提供多 种多样的电信业务，通过通信网传输、交换、处理的信息量将不断增大，这就要 求现代化的通信网向数字化、综合化、智能化和个人化方向发展，随着系统容量 的不断提高，电子器件处理信息的速率还远远低于光纤所能提供的巨大负荷量的 矛盾就更加显现。为了进一步满足各种宽带业务对网络容量的需求，进一步挖掘 光纤的频带资源，充分利用SD同步复用、标准化的光接口、强大的网管能力、灵 活网络拓扑能力和高可靠性，开发和使用新型光纤通信系统将成为未来的趋势。 本文以SDH勺传输原理为基础，通过中国华为公司所研制的最新一代 SD智能光传
输设备一OPTIX OS为基础，设计了一个以三台设备为基本网元的简单的链型传输 网络，通过实验室的运行和测试，可以实现异地之间的通信业务的上传下载传输。
关键字：SDH网络，光传输，STM-N组网，复用，光接口
ABSTRACT
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ABSTRACT
Digital synchronous Digital system (Synnchronous Hierarchy SDH) is a kind of new tran smissi on system, is widely used in practical optical fiber com muni cati on system. Highly developed the information society for network can provide varied telecom mun icati on bus in ess, through the n etwork tran smissi on and excha nge, process ing of in formatio n will continue to in crease, this requires moder n com muni cati ons n etwork to the digital, in tegrated, in tellige nt and pers on alizati on direct ion, with the continu ous improveme nt of the system capacity, rate of process ing information electronic devices are still far lower than fiber can provide the huge contradiction is more load appeared. In order to further meet various broadband bus in ess dema nd for n etwork capacity, further mining fiber band resources, make full use of SDH synchronous multiplexi ng, sta ndardizati on of light in terface, powerful n etwork man ageme nt ability, flexible n etwork topology ability and high reliability, the developme nt and use of new fiber com muni cati ons systems will become the trend of the future. Based on SDH tran smissi on prin ciple as the foun dati on, which is developed by Chi na huawei compa ny of the latest gen erati on of SDH in tellige nt optical tran smissi on equipment - OPTIX OSN as the foundation, the design a to three equipment for the basic n ets yua n simple cha in type tran smissi on n etwork, through laboratory operati on and test