August 2014 - Blog of FS.COM
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Introduction of CATV/HFC Transmission Systems

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Understanding CATV CATV, which originally called community antenna television is more commonly known as “cable TV” now. Since the early 1990s, CATV has taken on some ne

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DVI/HDMI/VGA/SDI Video Signal Connectors in Digital Signage

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Nowadays DVI and HDMI connections become more and more widely used in digital signage, we are usually asked that which is better, DVI (or HDVI) or VGA and even or SDI? I think ther

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The DWDM Equipment Used in Metropolitan Area Network

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The long distances made possible by advances in technologies such as optical amplifiers, dispersion compensators, and new fiber types, resulted in the initial deployment of DWDM te

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