| # | 类型 | 标题 | 整理 | 编辑日期 |
|---|---|---|---|---|
| 1 | 1.1. 准同步系统PDH的弱点 | pony | 2001-08-01 | |
| 2 | 1.2. 什么是SDH | pony | 2001-08-01 | |
| 3 | 1.3. SDH的特点 | pony | 2001-08-01 | |
| 4 | 2.1. 同步数字体系的速率 | pony | 2001-08-01 | |
| 5 | 2.2. 帧结构 | pony | 2001-08-01 | |
| 6 | 2.2. 帧结构（续） | pony | 2001-08-01 | |
| 7 | 3. 自愈网 | pony | 2001-08-01 | |
| 8 | 4.1. DXC的基本概念 | pony | 2001-08-01 | |
| 9 | 4.2. DXC的基本功能 | pony | 2001-08-01 | |
| 10 | 4.3. DXC交叉连接网的特点 | pony | 2001-08-01 | |
| 11 | DXC与常规数字交换机的主要不同点 | pony | 2001-08-01 | |
| 12 | 4.4. SDXC的应用 | pony | 2001-08-01 | |
| 13 | 5. 网同步 | pony | 2001-08-01 | |
| 14 | 5.1. 主从同步方式 | pony | 2001-08-01 | |
| 15 | 5.2. 相互同步方式 | pony | 2001-08-01 | |
| 16 | 5.3. SDH网同步方式 | pony | 2001-08-01 | |
| 17 | SDH——崭新的传输体制 | pony | 2001-08-01 | |
| 18 | ＳＤＨ微波通信系统 | champaign | 2001-08-01 | |
| 19 | ＳＤＨ与ＳＯＮＥＴ的异同 | champaign | 2001-08-01 | |
| 20 | 关于IP over SDH/Sonet | micheal | 2001-08-01 | |
| 21 | 关于IP over SDH/Sonet(2) | micheal | 2001-08-01 | |
| 22 | 关于IP over SDH/Sonet(3) | micheal | 2001-08-01 |