Node in an optical signal transmission network, and method of re

Details Node in an optical signal transmission network, and method of re Node in an optical signal transmission network, and method of re

1997-01-29

1999-09-21

Nguyen, Chau

Multiplex communications

Fault recovery

Bypass an inoperative station

H04K 122

Patent

active

059563192

ABSTRACT:
The optical node comprises two working directional switches (22,27) connected serially in a primary ring line (2), respectively ahead of and after an extracting and/or inserting unit (11), and further connected serially in a secondary ring line (3), which are adapted to controllably switch the optical signal path between the primary ring line (2) and the secondary ring line (3), and to the extracting and/or inserting unit (11). The node further comprises two backup directional switches associated with the working directional switches and connected operatively in the primary (2) and secondary (3) ring lines to restore the optical node (10) to proper operation on the occurrence of a failure at the working directional switches.

REFERENCES:
patent: 4538026 (1985-08-01), Yasue
patent: 4704714 (1987-11-01), Tomizawa et al.
patent: 5159595 (1992-10-01), Flanagan et al.
patent: 5179548 (1993-01-01), Sandaesara
patent: 5442623 (1995-08-01), Wu
M. Guizani et al., "Optical Design of a Fault Tolerant Self-Routing Switch for Massively Parallel Processing Networks", IEEE, pp. 246-254, (1995).
A.F. Elrefaie, "Multiwavelength Survivable Ring Network Architectures", IEEE Technical Program, Conference Record, 2/3:1245-1251 (1993).
E. Gay et al., Theoretical Simulation and Experimental Investigation on a WDM Survivable Unidirectional Open Ring Network Using Tunable Channel Selecting Receivers, Journal of Lightwave Technology, 13(8):1636-1647 (1995).

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