| http://www.w3.org/ns/prov#value | - There is also provided in accordance with the present invention a network hub for providing 1:N protection connected over a Dense Wave Division Multiplexing (DWDM) optical ring network to a plurality of access nodes comprising N transceivers, each transceiver adapted to transmit and receive over a different wavelength, wherein N is a positive integer, a first multiplexer and a second multiplexer a
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