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ＨＦＣ的概念是由贝尔实验室首先提出的。它是在ＣＡＴＶ的基础上发展起来的一种新型宽带接入技术。ＨＦＣ网络的主干系统使用光纤，采用频分复用的方式传输多种信息。 ＨＦＣ是以模拟传输为主，综合接入多种业务信息。在传输数字信号时，必须经过调制，将数字信息调制到模拟信
The concept of HFC was first proposed by Bell Labs. It is a new type of broadband access technology developed on the basis of CATV. The backbone system of the HFC network uses optical fibers to transmit multiple types of information using frequency division multiplexing. HFC is based on analog transmission and integrates multiple service information. When digital signals are transmitted, they must be modulated to modulate the digital information to analog signals.