Fiber optic routers are classified into the following levels

Fiber optic routers are categorized based on deployment architecture and network level, including FTTH, FTTB, FTTC, and enterprise routed optical networking solutions.

Residential and Small-Scale Deployment Levels

1. FTTH (Fiber to the Home): These routers are designed for networks where fiber optic cables run directly into individual homes or businesses, providing a full-fiber connection from the service provider to the premises. They are ideal for urban homes, smart homes, and high-bandwidth users, supporting gigabit or multi-gigabit speeds .
2. FTTB (Fiber to the Building): Used in multi-tenant buildings such as apartments or office towers, fiber terminates at a central point, and the connection is distributed via Ethernet, coaxial cable, or Wi-Fi. These routers are suitable for commercial properties, campuses, and shared residential complexes .
3. FTTC (Fiber to the Curb/Cabinet): In this hybrid setup, fiber reaches a street cabinet or distribution point, and the last mile to homes uses existing copper infrastructure like DSL lines. FTTC routers are cost-effective for suburban neighborhoods or areas with limited fiber rollout .

Enterprise and High-Capacity Levels

1. Routed Optical Networking (RON) Routers: Enterprise-grade fiber routers operate at a higher network level, integrating high-density routers with digital coherent optics (ZR/ZR+), DWDM systems, and multi-layer automation. These routers unify WDM, OTN, and packet transport layers, providing scalable, automated, and cost-efficient solutions for ISPs, smart cities, and 5G networks .
2. Pluggable Optic Module Support: High-level routers often support SFP, SFP+, or coherent pluggable modules, allowing flexible deployment over varying distances and wavelengths. This modularity enables routers to handle long-haul, metro, or access networks efficiently .

Key Features Across Levels

• High-Speed Capability: Fiber-ready routers must support at least Gigabit Ethernet to match fiber speeds, with some supporting multi-gigabit LAN/WAN ports .
• WAN Port for ONT: Residential fiber routers often require a dedicated WAN port to connect to an Optical Network Terminal (ONT) that converts fiber signals to data .
• Advanced Wireless Technology: Wi-Fi 5, Wi-Fi 6, or Wi-Fi 7 support ensures full utilization of fiber bandwidth for home or office networks .
• Cloud Management and SDN Integration: Enterprise routers may include software-defined networking (SDN) and network functions virtualization (NFV) for remote configuration, monitoring, and optimization . In summary, fiber optic routers are categorized by deployment level and network architecture, ranging from residential FTTH/FTTB/FTTC solutions to enterprise routed optical networking systems, with distinctions in speed, scalability, and management capabilities.