The foundation CONA course is specially crafted for optical network planners, project managers, and network operation personnel. It delves into the essential aspects of optical communications, encompassing fiber optics and transmission systems employing direct detection technology. The CONA curriculum extensively covers networks based on single channels or multiple channels such as SWDM, LAN-WDM, CWDM, and DWDM. It brings real-world applications like 5G transport, data center inter-connects, long-haul links and networks to the forefront, providing invaluable case studies during the CONA workshops. Delegates will also gain in-depth knowledge about meeting network performance requirements and effectively mitigating fiber impairments, including challenges like chromatic dispersion, polarization mode dispersion, and non-linear impairments.