| 双向HFC网的上下通道异同点 |
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| 引用本文： | 佟雨忱,冯维柱. 双向HFC网的上下通道异同点[J]. 中国有线电视, 2007, 0(19): 1830-1833 |
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| 作者姓名： | 佟雨忱 冯维柱 |
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| 作者单位： | 北镇市广播电视局,辽宁,北镇,121300 |
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| 摘 要： | 双向HFC网络具有上下两个通道，它们的信号传输方式既有相同点也有不同点，具体说明信号流方向、信号类型、传输方式、光缆拓扑结构、信号测量方法、衰减器与均衡器位置、增益点选择等方面的不同，并说明它们在网络调试中的作用。
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| 关 键 词： | HFC网 双向 通道 设计 调试 |
| 文章编号： | 1007-7022（2007）19-1830-04 |
| 收稿时间： | 2007-06-15 |
| 修稿时间： | 2007-06-15 |
Similarities and Differences of the Up and Down Channels in Bidirectional HFC Network |
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| TONG Yu-chen,FENG Wei-zhu. Similarities and Differences of the Up and Down Channels in Bidirectional HFC Network[J]. China Cable Television, 2007, 0(19): 1830-1833 |
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| Authors: | TONG Yu-chen FENG Wei-zhu |
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| Affiliation: | Beizhen Broadcast Television Bureau, Liaoning Beizhen 121300, China |
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| Abstract: | There are up and down channels in the bidirectional HFC network. The signal transmissions of the two channels are not totally the same. This paper specifically introduces the differences of the signal stream direction, the signal types, ways of transmission, topology structure of the cable, signal measurement, the locations of attenuator and equalizer and the selection of gains. Then the paper explains their functions in the network debugging. |
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| Keywords: | HFC network bidirectional channel design debugging |
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