The F520 Optical Transport Network (OTN) Dense Wavelength Division Multiplexing (DWDM) System and Data Center Interconnect (DCO) Series are designed for specialized transmission configurations, catering to high-density fiber optic solutions and expandable urban networks. Featuring 800G/400G and Bi-Directional modules, these systems are enhancing Artificial Intelligence (AI) infrastructure and cloud data centers. Furthermore, they are addressing challenges related to the saturation of metropolitan fiber networks by providing efficient solutions for increased data bandwidth and connectivity.