日本的SDH网络和具有无碰撞交换功能的SDH 52/156 Mbps (VC-3/4)数字交叉连接系统

Proceedings of ICC/SUPERCOMM'94 - 1994 International Conference on Communications Pub Date : 1994-05-01 DOI:10.1109/ICC.1994.368935

K. Nishihata, S. Umino, T. Shinomiya

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引用次数: 4

摘要

自1989年以来，NTT一直使用同步数字层次(SDH)传输系统在日本创建简化，易于操作的传输网络。本文介绍了NTT的SDH网络和新开发的SDH 52M/156M数字交叉连接系统(Module AX)，该系统可实现实时VC-3/VC-4路径级网络运行和无碰撞交换，从而通过VC-3/VC-4级交叉连接为现有电信电缆的重新定位提供支持。它还支持标准Q接口和同步设备管理功能(SEMF)，并基于电信管理网络(TMN)原理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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SDH network in Japan and SDH 52/156 Mbps (VC-3/4) digital cross-connect systems with hit-less switching function

Since 1989, NTT has been using the synchronous digital hierarchy (SDH) transmission system to create simplified, easy-to-operate transmission networks in Japan. This paper describes the SDH networks at NTT and the newly developed SDH 52M/156M digital cross-connect system (Module AX), which enables real-time VC-3/VC-4 path level network operation and hit-less switching, thus providing support for relocation of existing telecommunication cables through cross-connection at the VC-3/VC-4 level. It also supports a standard Q interface and synchronous equipment management function (SEMF), and is based on the telecommunication management network (TMN) principle.<>

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Proceedings of ICC/SUPERCOMM'94 - 1994 International Conference on Communications

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