SFP 80km optical modules are long-reach fiber optic transceivers designed to transmit Gigabit Ethernet signals over single-mode fiber across distances of up to 80km. A fiber optic ring network is a physical or logical network topology where devices (usually switches) are connected in a closed-loop using fiber optic cables. This design ensures data can travel in both directions. 3ae, SFP+ MSA, SFF-8472 and SFF-8431 standards. To exceed 120km, traditional solutions rely on EDFA optical amplifiers or dispersion compensation modules. Technical Principles: Evolution from "Single Chain" to "Closed Loop" Traditional.
[pdf] Connecting Fiber Optic Cable to Ethernet Port: Carefully insert the fiber optic cable connector into the Ethernet port, aligning the keying mechanism if applicable. Ethernet ports are designed for copper cables (like Cat5e or Cat6), which transmit data using electrical signals. This video will tell you how to make the RJ45 port on the router to use with fiber.
[pdf] 
