目录
目录 ................................................................ i
1-1
第一章SDH概述 .......................................................
1.1SDH产生的技术背景 为什么会产生SDH传输体制 ...................... 1-1
1.2与PDH相比SDH有哪些优势 ......................................... 1-4
1.3SDH的缺陷所在 .................................................. 1-9
小结 ............................................................. 1-11
习题 ............................................................. 1-11
2-1
第二章SDH信号的帧结构和复用步骤.......................................

2.1SDH信号 STM-N的帧结构 ....................................... 2-1
2.2SDH的复用结构和步骤 ............................................ 2-5
2.2.1140Mbit/s复用进STM-N信号 .................................... 2-8
2.2.234Mbit/s复用进STM-N信号 ................................... 2-12
2.2.32Mbit/s复用进STM-N信号 .................................... 2-14
2.3映射 定位和复用的概念 .......................................... 2-18
小结 ............................................................. 2-24
2-24
习题 .............................................................
3-1
章开销和指针 .....................................................
3-1
3.1开销 ..........................................................
3.1.1段开销 .................................................... 3-1
3.1.2通道开销 .................................................. 3-9
3.2 指针 ........................................................ 3-15
3.2.1管理单元指针 AU-PTR .................................... 3-15
3.2.2支路单元指针 TU-PTR .................................... 3-18
小结 ............................................................. 3-21
习题 ............................................................. 3-21
4-1章SDH设备的逻辑组成 ..............................................
4.1SDH网络的常见网元 .............................................. 4-1
4.2SDH设备的逻辑功能块 ............................................ 4-4
小结 ............................................................. 4-25
习题 ............................................................. 4-25
5-1章SDH网络结构和网络保护机理 .......................................
5.1基本的网络拓扑结构 .............................................. 5-1
5.2链网和自愈环 ................................................... 5-3

5.2.1链形网 .................................................... 5-4
5.2.2环网 自愈环 ............................................. 5-5
5.3复杂网络的拓扑结构及特点 ........................................ 5-18
5.4SDH网络的整体层次结构 .......................................... 5-22
5.5PDH向SDH过渡的策略 ........................................... 5-24
小结 ............................................................. 5-26
5-26
习题 .............................................................
6-1
第六章光接口类型和参数 ................................................
6-1
6.1光纤的种类 .....................................................
6.2光接口类型 ..................................................... 6-2
6.3光接口参数 ..................................................... 6-3
6.3.1光线路码型 ................................................ 6-3
6.3.2S点参数 光发送机参数 ..................................... 6-4
6.3.3R点参数光接收机参数 .................................... 6-5
6-7
小结 ..............................................................
习题 .............................................................. 6-7
7-1
第七章定时与同步 .....................................................
7.1同步方式 ....................................................... 7-1
7.2主从同步网中从时钟的工作模式 ..................................... 7-3
7.3SDH的引入对网同步的要求 ......................................... 7-3
7.4SDH网的同步方式 ................................................ 7-4
7.4.1SDH网同步原则 ............................................. 7-4
7.4.2SDH网元时钟源的种类 ....................................... 7-5
7.4.3SDH网络常见的定时方式 ...................................... 7-6
7.5S1字节和SDH网络时钟保护倒换原理 .................................. 7-9
小结 ............................................................. 7-14
习题 ............................................................. 7-14
8-1
第八章传输性能 .......................................................
8.1误码性能 ....................................................... 8-1
8.1.1误码的产生和分布 ........................................... 8-1
8.1.2误码性能的度量 ............................................. 8-2
8.1.3数字段相关的误码指标 ....................................... 8-3
8.1.4误码减少策略 .............................................. 8-4
8.2可用性参数 ..................................................... 8-4
8.3抖动漂移性能 ................................................... 8-4
8.3.1抖动和漂移的产生机理 ....................................... 8-5
8.3.2抖动性能规范 .............................................. 8-5
8.3.3抖动减少的策略 ............................................. 8-7
小结 .............................................................. 8-9

[ 本帖最后由 ants99 于 2007-3-3 11:36 编辑 ]