The P614 400G Muxponder Service Board is designed for high-capacity OTN/DWDM networks. With CFP2-DCO coherent technology, it enables ultra-long-distance transmission with high performance and. The 400G Muxponder service card (P616) launched by D Tech Trading supports mapping 1x400G optical signal or 4x100G optical signals received on the client side to 1 OTUC4 signal and interconverting OTUC4 signals with optical signals of WDM wavelengths conforming to ITU-T standards. Nokia coherent routing utilizes a new generation of digital coherent optics (DCOs) equipped in router interface ports to n the router-pluggable QSFP-DD format. Devices such as routers in Nepal are used in many different ways and for a wide variety of purposes.