1 describes a 10-Gigabit-capable symmetric passive optical network (XGS-PON) system in an optical access network for residential, business, mobile backhaul and other applications. Recommendation ITU-T G. This system operates over a point-to-multipoint optical access infrastructure at the. 10G-PON (also known as XG-PON or G. 987) is a 2010 computer networking standard for data links, capable of delivering shared Internet access rates up to 10 Gbit/s (gigabits per second) over optical fibre. This is the ITU-T 's next-generation standard following on from GPON or gigabit-capable PON. The 10G SFP+ transceiver standards—SR, LR, ER, and ZR—define physical layer optical specifications dictating wavelength, modulation, and maximum span limit. Aligning chromatic dispersion thresholds and optical power budgets to the correct glass type eliminates physical layer bit errors and TCP. In the construction of high-speed networks, 10G optical modules are core components of data centers, enterprise networks, and telecommunication networks. However, facing the numerous models on the market, such as LRM, SR, LR, ER, ZR and other optical modules, how to choose the most suitable. PON (Passive Optical Network) is a point-to-multipoint (P2MP) fiber access network that uses passive optical splitters to distribute signals from an OLT (Optical Line Terminal) to multiple ONUs (Optical Network Units). Characterized by its simple architecture, low equipment requirements, and energy.