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广州金龙安防科技 > 新闻资讯 > 同轴电缆与光纤传输哪个好?
同轴电缆与光纤传输哪个好?
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GUANGZHOUJIANKONGANZHUANG

时间 : 2020-01-23 11:07 浏览量 : 31

同轴电缆与光纤传输哪个好?安防市场向来不缺乏"战争",前端监控摄像机模拟与高清的PK战仍在持续,而后端NVR与DVR不知何时也加入了这场无硝烟的战争中。更令人诧异的是,就连二者的传输方式也纷纷表态"站队",力挺自己的队友。模拟与高清监控对应着同轴电缆与光纤传输,这仍旧是一场没有结局的对抗。


在视频传输系统中,摄像机的输出阻抗为75Ω,在CCTV工程中视频信号的传输主要用绝缘层为实心的聚乙烯SYV型同轴电缆,和绝缘层为泡沫聚乙烯SBYFV型同轴电缆。这两种电缆特性阻抗均为75Ω,在衰减量方面后者也比前者小。

同轴电缆与光纤传输哪个好?

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同轴电缆与光纤传输哪个好?

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