粗波分复用技术在城域网中的应用

The Application of the CWDM technique on WAN

现代城域网是一个全业务的网络,为满足宽带业务以及网络速度的需要,采用了长途传输网络的DWDM技术,该系统成本高,维护费用大。CWDM技术的出现,为城域网建设提供了低成本、高效率的传输平台。本文从城域网应用粗波分复用技术几个方面作了简要介绍。

The modem WAN is an Intemet of all business. In order to meet the need of the broadband work and the net speed, we adopt the DWDM technique for distant transportation network, which has high cost and expensive maintainfare. The appearance of the CWDM offers a transporting place for the construction of the WAN with lower cost and higher efficiency. The article says a few words on it from some aspects.