DWDM network route diagram for regional fiber optic infrastructure covering Itabira, Ouro Preto, and surrouding areas. It details backbone connections for CFO cables ranging from 12 to 144 fibers, including specific layouts for DIOs, CEOs, and splitters. This is a schematic for as-built telecommunications projects. Diagrama de rota DWDM para infraestrutura de fibra óptica regional.