The DWDM add-and-drop multiplexer card launched by Sintai Communication Co., Ltd is generally used in the intermediate nodes of chain or ring-type network, which can selectively receive and transmit or upload and download some wavelength division channels from the transmission signal without affecting the transmission of other channels.
The add-drop multiplexing passive wavelength division card launched by Sintai Communication Co., Ltd is generally used in the intermediate nodes of chain or ring-type network, which can selectively receive and transmit or upload and download some wavelength division channels from the transmission signal without affecting the transmission of other channels.
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