纯电缆网络光缆化升级 的必要性 启东市城区有线电视网属纯电缆网络。目前能传输29套电视节目,一套立体声调频广播节目。随着时代的发展,人们对有线电视的可靠性有了更高要求,同时也希望通过有线电视网络获得更多的信息,例如:访问因特网、视频点播、远程教育、网上采购、电视会议、网络电话等。纯电缆有线电视网络,有着宽达1000MHz的通信频带,具有信息容量大、速度快、费用低等双绞线电信网 The need for the upgrading of pure cable network fiber cable Qidong City cable network is a pure cable network. At present, it can transmit 29 sets of television programs and a set of stereo FM radio programs. With the development of the times, people have higher requirements on the reliability of cable television, and they also hope to get more information through the cable TV network, for example: accessing the Internet, video on demand, distance education, online purchasing, video conferencing, Internet Phone and so on. Pure cable cable television network, with a wide frequency band of 1000MHz communications, with information capacity, speed, low cost twisted pair telecommunications network