The NC5200D+, NC5200E+, and NC5200P are advanced networking solutions designed for use in the aggregation and access layers of metro networks. These versatile devices can seamlessly integrate with other equipment in the NC series, including the NC5200E+, NC5200P, NC5200, and NC5800, to form robust and efficient networks. The flexibility and reliability of these products make them ideal for a wide range of applications in modern metro networks.