ComUNITY access system of COM21 Inc. is a set of internet data communication system based on the HFC network. The system includes headend, cable modem and network management software.

• ComUNITY是美国COM2 1公司开发的一套以HFC为接入网的互联网数据通信系统 ,该系统主要包含通信头端、线缆调制解调器和网络管理软件等产品。