<p>Provided is a highly reliable light node system capable of monitoring an optical path in a transmission node and a transponder in a node under the working conditions thereof. The light node system includes: a monitoring control managing means by which to monitor an inspection signal or an operation signal connected to at least one of the ports of a wavelength selection switch; and a control means for controlling the wavelength selection switch so that the monitoring control managing means can carry out monitoring.</p>
申请公布号
WO2012086537(A1)
申请公布日期
2012.06.28
申请号
WO2011JP79167
申请日期
2011.12.16
申请人
NEC CORPORATION;HINO, TOMOYUKI;SAKAUCHI, MASAHIRO;TAJIMA, AKIO