summarized the near future fiber optic cable and the communications cable in the manufacture， the construction and the maintenance technology development characteristic， has analyzed its trend of development， and proposed on our country fiber optic cable and the communications cable technology and the industrial development some are worth the question which key word fiber optic cable communications cable itu-t suggestion technological abstract: This article introduces the data communication the constitution principle， the switching scheme and the applicable scope; Data communication classification， and look forward to the future happy application keyword data communication constitution principle applicable scope application prospect
Abstract Summary of the recent fiber-optic cable and communications cable in the manufacturing， construction and maintenance of the characteristics of technological development， an analysis of trends in its development and China's optical fiber and cable and communication cable technology and industry made some food for Key words optical fiber and cable communication cable itu-t recommendation technology development There are a Abstract: This article describes the composition of data communication principles， methods and scope of exchange; data classification， and better look to the future application Keywords data communication constitute the scope of application of the principle of the prospects机械翻译，我做了些修改后语法没问题，放心使用。
