数字交叉连接技术在电力通信网中的运用

文章通过介绍数字交叉连接的概念和分类，结合电力通信网容量小的特点，介绍电力通信系统在SDH中的数字交叉连接设备，并和数字交换机的不同点进行比较。根据广东电力通信运用的实际情况，介绍64kbit／s数字交叉连接设备的汇聚功能和业务分类的灵活性能，以及可节省PCM设备、节约宽带资源的优势。

Application of digital cross connects technology in power communication network

The concepts and classification of Digital Cross Connects are introduced in this paper. Combining with the small capacity character of electric power communication network, the digital cross connects equipments used in electric power SDH communication network are introduced, and the differences between the digital cross connects and the digital exchanger are compared. According to the reality of electric power communication network in Guangdong province, the convergence function of 64k bit/s digital cross connect device and the flexibility of traffic classification is also discussed, and it is proved that this scheme has advantages in the saving of PCM and broadband resources.