大同市郊区2.5Gbit/s SDH环网工程建设方案

The Construction Project of 2.5Gbit/s SDH Loop Network for DaTong's Suburbs

介绍了较大市话中继网中采用ＳＤＨ组网的建设方 案，提出了组网原则及方法，还对ＳＤＨ网管、现有 ＰＤＨ系统的使用、重要业务电路的安排等方面提出 了建议和对策。

This article recommends the construction project that it uses SDH organizing networks in the biggish local junction network. It puts forward not only the principles and methods of organising network,but also the advices and countermeasures that include the SDH network management,the use of existing PDH system, and the arrangement of important service's circuits.