Original document(64 pages) Authorized document(62 pages) 中文版
    Techniques for providing normal operation and service restoration capability in the event of failure of terminal equipment or transmission media in a heterogeneous network, such as a hybrid network containing single- and multi-wavelength lightwave communications systems. An optical switching node or OSN (12, 120a-d) is placed at each node in the ring network (110) to provide the required connections between various fibers (55) and terminal equipment (50, 50a-d), but having switch states that allow signals on the protection fibers to bypass the terminal equipment at that node. Ring-switched signals propagate around the ring on protection fibers (55adp', 55dap') without encountering the terminal equipment at the intervening nodes. To the extent that the protection fiber links between any given pair of nodes are incapable of supporting all the relevant communication regimes, such links are modified to provide such support.
Application Number
98804133 Application Date
Title 名称 Method and apparatus for operation, protection and restoration of heterogenous optical communication networks
Publication Number
1275277 Publication Date
Approval Pub. Date 2004.12.29 Granted Pub. Date 2004.12.29
International Classification 分类号 H04B10/08;H04J14/00
Applicant(s) Name
Optical Network Inc.
Address 地址
Inventor(s) Name 发明人 Rohit Sharma;Larry R. Mcadams
Attorney & Agent 代理人 yu mang

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