| http://www.w3.org/ns/prov#value | - INDUSTRIAL APPLICABILITY [0039] As explained above, the wavelength multiplex method and the system using the method according to the present invention may be used in wavelength multiplex terminal apparatuses connected to a network such as a leased line or an IP network, for detecting any code errors and RD errors in Gigabit Ethernet data to monitor signal transmission qualities.
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