Automatically switched redundant switch configurations

Details Automatically switched redundant switch configurations Automatically switched redundant switch configurations

2005-12-27

2005-12-27

Lee, John D. (Department: 2874)

Optical waveguides

With optical coupler

Switch

C385S017000, C385S024000, C398S005000, C398S010000, C398S012000, C398S017000, C398S019000

Reexamination Certificate

active

06980711

ABSTRACT:
A branch unit for a fiber optic system that includes a service path and a protection path, whereby the branch unit provides switching to account for problems due to fiber cuts and/or equipment failures that may occur in the fiber optic system. The service and protection paths meet at a branch point of the fiber optic network, or at a network protection equipment (NPE) that is located near a customer interface equipment. A plurality of switches are provided at the branch unit or NPE, along with a detector and a processor, to determine whether any signals are being received from the service path, and if not, to reconfigure the system to accept signals from the protection path.

REFERENCES:
patent: 5717796 (1998-02-01), Clendening
patent: 5764405 (1998-06-01), Alphonsus
patent: 5896474 (1999-04-01), Van Deventer et al.
patent: 5912761 (1999-06-01), Jander et al.
patent: 5926263 (1999-07-01), Lynch et al.
patent: 5966206 (1999-10-01), Jander
patent: 5969833 (1999-10-01), Jensen
patent: 6025949 (2000-02-01), Anderson
patent: 6028684 (2000-02-01), Kidorf
patent: 6057948 (2000-05-01), Mizrahi
patent: 6061156 (2000-05-01), Takeshita et al.
patent: 6134032 (2000-10-01), Kram et al.
patent: 6134033 (2000-10-01), Bergano et al.
patent: 6137604 (2000-10-01), Bergano
patent: 6141771 (2000-10-01), O'Brien et al.
patent: 6211985 (2001-04-01), Anderson
patent: 6266168 (2001-07-01), Denkin et al.
patent: 6304351 (2001-10-01), Pedersen
patent: 6307653 (2001-10-01), Bala et al.
patent: 6317414 (2001-11-01), Naohiro
patent: 6323974 (2001-11-01), Harris et al.
patent: 6323981 (2001-11-01), Jensen
patent: 6327250 (2001-12-01), Chen et al.
patent: 6327400 (2001-12-01), Harstead et al.
patent: 6331905 (2001-12-01), Ellinas et al.
patent: 6396969 (2002-05-01), Sparks et al.
patent: 6414771 (2002-07-01), Al-Salameh et al.
patent: 6438286 (2002-08-01), Duerksen et al.
patent: 6868232 (2005-03-01), Eijk et al.
C.A. Siller, Jr. et al., “Sonet SDH—A SourceBook of Synchronous Networking”, IEEE Communications Society, pp. 262-265.
AT&T Technical Journal, “Undersea Communications Technology”, AT&T Technical Journal, Jan./Feb. 1995, vol. 74, No. 1.
Bell Labs Technical Journal, Oct.-Dec. 1999, pp. 138-154.
N.S. Bergano et al., “Polarization Scrambling Improves SNR Performance in a Chain of EDFA's” in OFC 94 Technical Digest Pub., pp. 255-256.
N.S. Bergano, “Undersea Amplified Lightwave Sysems Design” AT&T Laboratories Pub., pp. 302-335.
Ellen Brain et al., “Ten Years of Operating Light Wave Systems”, pp. 203-209.
I.P. Kaminow, “Optical Fiber Telecommunications IIIB”, pp. 101-103.
C. de Maindreville et al., Submarine Network Management: Architectural Issues, “Abstract”, pp. 573-580.
S. Namiki et al., Abstract, “Recent Advances in Ultra-Wideband Raman Amplifiers” Opto-technology Lab., pp. FF-1-3, and “Fibre-DFB Laser WDM Array” from Tutorial Sessions, SN 34011, p. 142.
Ravi V. Shankar et al., “Managing the Management Communications Network in Optical Transport Systems” in Bell Labs Technical Journal, Oct.-Dec., 1999, pp. 155-170.

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