With the development of business, the demand for bandwidth is getting higher and higher, and 10G PON technology can better adapt to the needs of the network. Which of the following description of 10G PON is correct? (Multiple choice)

With the development of business, the demand for bandwidth is getting higher and higher, and 10G PON technology can better adapt to the needs of the network. Which of the following description of 10G PON is correct? (Multiple choice)
A . The frame structure of 10G GPON still uses GEM frames in order to be compatible with GPON.
B. Although the upstream wavelength range of 10G GPON coincides with GPON, it does not affect the coexistence of the two.
C. Compared with GPON, 10G GPON has a larger splitting ratio, which can better save ODN investment.
D. 10G GPON provides larger bandwidth and more sufficient optical power budget.

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Answer: CD