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南京江宁广电近几年来大力发展广电宽带业务,也就是Cable Modem(以下简称CM)名为电缆调制解调器,又名线缆调制解调器。它是近几年随着网络应用的扩大而发展起来的,主要用于有线电视网进行数据传输。CM不仅包含调制解调部分,它还包括电视接收调谐、加密解密和协议适配等部分,它还可能是一个桥接器、路由器、网络控制器或集线器。
Nanjing Jiangning radio and television in recent years to develop radio and television broadband business, that is, Cable Modem (hereinafter referred to as CM) named cable modems, also known as cable modems. It is in recent years with the expansion of network applications developed, mainly for cable television network for data transmission. The CM includes not only the modem section, but also the TV reception tuning, encryption and decryption, and protocol adaptation. It may also be a bridge, router, network controller, or hub.