FIBERTOP Smart Airport Backbone Network Solution builds a reliable carrier-grade optical transmission ring for airport multi-zone interconnection. Adopting 1.6T OSFP 2×FR4 (2km) as the core backbone link to realize inter-terminal, airfield and central data center interconnection. 800G OSFP DR8 serves core-to-aggregation medium-reach links, while 800G OSFP SR8 handles intra-room short-distance device interconnection. The solution supports physical isolation of flight operation, radar meteorology, security monitoring and passenger service traffic, with dual-core redundancy and 99.999% availability, meeting strict disaster recovery and synchronous transmission requirements for airport core services.