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Nowadays, the Internet has entered thousands of households, and the Internet has become an indispensable thing in life. Moreover, with the continuous improvement of the network speed and the development of “light into copper retreat”, most new residential communities and network users have now achieved fiber-to-the-home. In this way, the average network user will have several boxes at home, such as light cats, routers, network TV boxes, etc. Sometimes there is a failure, the user does not know how to distinguish, how to describe them, can not quickly and correctly declare obstacle. 1.Light cat Light cat is a common name. The modem from the early dial-up era, commonly known as the cat, is called a modem, and turns a digital signal into a device that transmits analog signals over a telephone line. After entering the era of optical network, the optical signal transmitted by the optical fiber arrives at home, and a device needs to be converted into an electrical signal to communicate wi

At the "2018 China Optical Network Seminar", Jia Wu, senior engineer of the Optical Access Network Room of the Network Technology Research Department of China Unicom Network Technology Research Institute, pointed out that after the previous laboratory tests and field tests, China Unicom completed the FTTH of 10G PON . Interoperable technical reserves. In April 2018, China Unicom launched the collection and testing of different single-board OLTs such as XG-PON, Combo-PON and 10G EPON. The intercommunication function and performance test of multiple test cases have become mandatory requirements. Jia Wu said that it is expected that the FTTH of China Unicom's 10G PON will be deployed and deployed in 2019. Talking about the specific requirements of China Unicom's 10G PON deployment, Jia Wu said that China Unicom launched the mining test for 10G PON OLT in April 2018. For the 10G EPON symmetry requirements, the board should be able to support both symmetric and asy