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What are muxponders and what is their role in DWDM and OTN networks?

Muxponders combine (multiplex) multiple services into a single wavelength/uplink, utilizing ITU optical transport network (OTN) protocol for mapping the services over the same uplink. The muxponders maximize fiber capacity by reducing the number of wavelengths needed to transport data, making them ideal for future network growth. Carriers, dark-fiber providers, ISPs and other industries often deploy muxponders due to their carrier-grade features such as remote monitoring and management, link diagnostic tools, and bi-directional performance monitoring of the client service interfaces and uplink.