青海电力通信网数字时钟同步系统

Digital clock synchronous system in Qinghai electric power communication network

数字时钟同步系统是通信网的三大支撑网之一。针对目前青海电力通信网的组网特点及"十一五"期间青海电力通信网规划发展情况,根据青海电力通信网设备类型、目前同步方式及电路设备外时钟接口现状,文章提出了时钟同步方案,并对同步方式、系统节点分布、同步链路组织、定时分配方式、时钟保护以及通信电路同步的接入原则等方面进行了探讨。

Digital clock synchronous system is one of three sustentation networks in communication network. Based on the characteristics of Qinghai electric power communication network and its development during the llth 5-year-plan period, this paper proposes a clock synchronous scheme by considering the current situation of communication circuit equipment types, synchronous methods and interfaces of outside clocks. The synchronous mode, system nodes setting, synchronous link structuring, time assignation mode, clock protection and connecting principle of synchronous circuits are also discussed in the paper.