At first only a 10 g ring need to build form a complete set of otns is temporarily input is large, use its OTN devices (Huawei OSN 6800/8800) bearing ring of SDH in the long channel is to embody the value, particularly as the LTE/big customer special line/broadband business all at the same time from the county to the core engine, built its OTN equipment is equivalent to at least 10 g (GE) built a * 40 thoroughfare, when we in the later build two plane SDH equipment directly go wavelength division, and 10 g SDH equipment do not need to consider the dispersion, the attenuation, because the channel wavelength division has already in place, when new OLP, now as long as the fiber resource abundance and fiber attenuation can meet with OLP protection, simply add 1 piece of OLP veneer in equipment, add a pair of OLP protection period need to spend 6 db attenuation.Bearing on its OTN, for A certain period of A county town gathered node and the core node in the SDH equipment with 10 G plate, the OTN county gathering node and to end the core node configuration LSX board (OSN6800), if not the LSX SDH plate will need to use 10 line plate color, A color plate is support g. 691 agreement, this kind of plate directly in 6800 of us on the partial wave veneer, but for now, this solution is not directly connected LSX veneer maintenance convenient.

in English please