Build a full-optical ODN network from the central office to the user end, suitable for new residential areas, old residential areas, rural towns and other scenarios, to support gigabit / ten-gigabit broadband access. The main trunk uses GYTA/GYTA53 armored optical cables, and the入户 adopts G.657 anti-bending butterfly-shaped plastic cables， covering all laying forms such as pipelines， direct burial and overhead. The entire process is passive design， with low failure rate， a 30-year ultra-long service life， and can smoothly evolve to 50G PON， fully protecting long-term investment.

For 400G/800G high-speed interconnection, covering all levels within the cabinet, between racks, in PODs and in the DCI of the campus, it is suitable for AI computing clusters and distributed storage scenarios. Using OM5 wideband multimode / ultra-low loss single-mode optical fibers, combined with MPO/MTP pre-terminated systems and large-core ribbon optical cables, high-density deployment is achieved. Factory-prepared links, deployment efficiency is increased by 80%, link performance is stable and consistent, with 15-year investment protection, maximizing the utilization of server room space.

It covers the entire transmission levels of 5G's front-haul, mid-haul and back-haul, and is compatible with all types of stations including macro stations, micro stations and indoor distribution systems, meeting the transmission requirements of 25G/100G/200G. It offers differentiated configurations of optical cables such as layer-twisted type, center bundle tube type and ADSS all-media type, supporting fiber direct connection and passive wavelength division front-haul solutions, and is compatible with shared laying on power poles. The core fiber resources are efficiently utilized, the co-construction and sharing model reduces costs and speeds up construction, and the full-environment protection design ensures the high reliability of the network operation.

Providing services for national backbone networks, inter-provincial and inter-city trunk lines, and the "East-West Computing Resource Allocation" project, we are building an ultra-large capacity, ultra-long distance, and ultra-reliable optical transmission infrastructure. We use G.654.E ultra-low loss large effective area optical fibers, along with various forms of trunk optical cables such as direct burial armored, pipeline air blowing, and OPGW, and integrate a distributed optical fiber intelligent monitoring system. The single-fiber capacity can smoothly evolve to the level of hundreds of terabits, the transmission distance without repeaters is significantly increased, the total life cycle cost is reduced by 30%, and the main line security is guarded 24/7.