不同路由E1信号自动倒换的实现

Automatic switching of E1 signal in different routes

SDH自愈网技术极大地提高了网络的生存性,不需要人为干预,网络就能在极短的时间内,从失效故障中自动恢复所携带的业务。就业务量而言,自愈网保护范围是在所运行环网的高阶通道级里,对于独立的不同路由E1信号无法实现保护,文章就这个问题阐述了自己的观点,详细分析了E1信号的原理,并介绍完成这个自动倒换相关的电路。

The SDH self-recovery network technology enhances the network survivability enormously. The service can be self-recovered automatically in a very short time. Because the protection rang of self-recovery network locates in the high layer channel of the network, for those E1 signals coming from different and independent routes, the self-recovery network can not provide protection to them. Aiming at this question, the paper analyzes the working principle of E1 signal, and introduces the related circuits which realized above mentioned functions.