H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/74 (2006.01) H04B 10/00 (2006.01) H04J 14/00 (2006.01) H04J 14/02 (2006.01) H04Q 11/00 (2006.01)
Patent
CA 2306114
The system and method for eliminating the capacity required for protection of a line system includes a first tributary located on a first side of an optical line system. The first tributary carries an electrical signal into a first working multiplexes. The first tributary also has a first tributary switch which may be used to redirect the electrical signal around the first working multiplexes. If the first working multiplexes is functioning properly, the first working multiplexes multiplexes the electrical signal to the appropriate line rate and the signal is transmitted through the first working multiplexes to a first optical switch located on a first optical fiber, and then into an optical network. The optical network is located between the first and a second side of the optical line system. If the first working multiplexes fails, a microprocessor detects the failure, activates the first tributary switch and the first optical switch, and coordinates the rerouting of the signal from the first tributary through a first protection multiplexes. The first protection multiplexes multiplexes the signal to the required line rate and the signal is transmitted to the first optical switch located on the first optical fiber. The signal is then transmitted into the optical network. Once the signal passes through the optical network, the signal is transmitted to a second working multiplexer on a second optical fiber. Finally, the signal is transmitted onto a second tributary. The system and method of the present invention is expandable to provide protection to any number of working channels using the protection multiplexer.
Alcatel
Robic
LandOfFree
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