Cable modem
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So far, various research institutes have conducted extensive research on cable modems. These research results have finally formed several internationally defined standards, IEEE defined IEEE802.14 protocol, DAVIC defined DAVIC protocol and MCNS defined DOCSIS. And the EuroDOCSIS agreement. It is reported that for the CA system, China has already decided to adopt the same-secret technology, and hopes that cable TV can apply CA system with independent intellectual property rights as soon as possible. For the development of China's cable modem (CM) standards, it tends to EuroDOCSIS, on the basis of which to add our own things. The EuroDOCSOS standard has a downlink symbol rate of 6.9652 Mb/s and an upstream frequency range of 5-65 MHz.
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