First, the theory foundation of SDH digital cross-connect matrix is dissertated.

首先，论文对SDH数字交叉连接矩阵设计的理论基础进行了介绍。

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Broadband Digital Cross - connect Systems?

宽带数字交叉连接系统B - DCS ？

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Tellabs has 38% of the digital cross-connect business, more than much bigger outfits like Lucent Technologies and France's Alcatel Alsthom.

FORBES: Survival technique: paranoia

Tellabs has 38% of the digital cross-connect business, more than much bigger outfits such as Lucent Technologies and France's Alcatel Alsthom.

FORBES: Survival technique: paranoia