What does xg mean in the optical module of a switch
The "X" in XGS represents the number 10, and the letter "S" stands for symmetrical, XGS-PON = 10 Gigabit Symmetrical PON. GPON (Gigabit-capable Passive Optical Network) is the access technology of a passive optical network (PON) based on the ITU-T G. Its development has undergone continuous evolution and improvement, while also driving the development and popularization of fiber optic access networks. It's considered as the ideal solution to FTTx (especially FTTH) with its high bandwidth, great interoperability and manageability, high efficiency, etc, which gains more and more ISPs' favor. Optical fiber's greater transmission capacity and speed deliver upstream and downstream (symmetric) speeds of up to 10 Gbit/s (gigabits per second) on the road to connecting users in the last mile.
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