摘要
上海本地电话网历经１００多年的发展，已成为我国最大的城市电话网。目前不仅实现了交换数字程控化、传输光纤化，接入网也开始大规模光纤化建设。此外，信令网、同步网、电信管理网等支撑网基本框架结构建设也已完成。上海本地电话网正在向智能化、综合化和宽带化方向发展。
ver more than 100 year's development,Shanghai local telephone network has been the biggest city telephone network in our country. Now its exchange is 100% DSPC,transmission is 100% optical fiber and digital,access network have been constructed with FTTF. Moreover,the construction of backup network framework such as signalling network,synchronous network,etc.,have been completed. It is ongoing to the integrated,intelligent & broad band direction.
出处
《电信科学》
北大核心
1998年第6期14-16,共3页
Telecommunications Science
关键词
本地电话网
基础网
支撑网
上海
ocal telephone network,basic network,backup network,development
