SDH单向复用段自愈环的研究

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Abstract This paper reviews the SDH SHR, summarily depicts the architecture of U-SHR. Two APS methods of U-SHR are compared. Finally, this paper addresses the problems of lowering the cost of ADM device, timing manners in the U-SHR and working mode of the network element.

Key words： Synchronous Digital Hierarchy （SDH） Self-Healing Ring（SHR） Automatic Protection Switching （APS） Add Drop Multiplexer（ADM） Timing

Received: 01 April 2000

PACS:

TN919.3

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	Wu Xiang
	Wang Yichao
	Feng Zhongxi

Cite this article:

Wu Xiang,Wang Yichao,Feng Zhongxi. RESEARCH OF SDH UNIDIRECTIONAL SHR[J]. , 2001, 23(12): 1365-1371 .

URL:

http://jeit.ie.ac.cn/EN/ OR http://jeit.ie.ac.cn/EN/Y2001/V23/I12/1365

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