| http://www.w3.org/ns/prov#value | - ltiplexing network structure including the n number of terminals (where n is a positive integer) to which unique user wavelengths are respectively allocated, and a sub ring for connecting the n number of terminals in a ring shape, comprising: a de-multiplexing means for dropping the wavelength division multiplexed signals passing through the sub-ring by wavelengths to de-multiplex the wavelength d
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