HD-SDI – the new frontier

I have always been a science fiction fan. I love the Science fiction classics, such as blade runner, Star Wars, and 2001: A Space Odyssey. Star Trek was a favorite. I found it fascinating. The technology shown seemed so far from the current reality that I did not imagine that I would live to see it implemented in my lifetime.
I was wrong. Numerous technological advancements have become a normal part of today’s society. In the movie “Blade Runner”, a 3D enhancement machine is used to enlarge at many angles a high resolution picture. At the time such a machine was part of fiction. In CCTV we see such advancements – PTZ (Pan Tilt Zoom) cameras that can zoom in from a distance, IP cameras that can enlarge a photo digitally.
The newest advancement in CCTV security systems and cameras is the HD-SDI (high definition serial digital interface) technology. The HD-SDI provides for a much higher resolution and sharper images than ever before. Up to recently, IP Digital Network systems and cameras were the leaders in the CCTV world. The digital resolution was much higher and therefore sought after. IP systems installation and cabling are different than regular CCTV Coax applications. This means, that in order to set up an IP digital system to replace an existing analog system, new cabling would need to be run and a large budget would have to be available to cover the cost of the much more expensive system and cameras. Using HD-SDI Systems and cameras, the user can keep the existing coaxial cable and simply upgrade the hardware (system and cameras). The HD-SDI systems can capture 1080p resolution video using the existing coaxial cable used by analog CCTV cameras.
This new technology opens doors to simply upgrade ones system instead of having to uproot the entire application and start from zero. This option is less of a hassle and saves money. The HD-SDI installs just like analog, so no training is required. To be able to provide 720p and 1080p high definition video over the same RG59 or RG6 coaxial cable that is used in traditional CCTV applications is an amazing improvement and a new age in CCTV installations.
In addition to the option of using existing run cabling, HD-SDI also provides higher resolution than ever before. Till today the highest resolution has been 704 x 480, which is referred to as D1 resolution. HD-SDI cameras are capable of true HD 1080p resolution (1920 x 1080).
Have you ever wanted to watch the video recorded by your CCTV cameras in the same high resolution as your television provides? Well, this new HD resolution does just that. Just as you’re accustomed to viewing motion pictures in high definition, you have the same option with your cameras.
With HD-SDI, all brands of systems and cameras work with one another. This allows for the freedom to choose cameras from different brands and manufacturers to all work on one application.
HD-SDI is unique in another capacity – It’s a closed system. The HD-SDI systems and cameras will continue to work, even if the network happens to go down. So, functionality isn’t an issue with HD-SDI DVR’s and cameras.
The variety of options that is now available in CCTV, allows the consumer more freedom in choices and the ability to acquire a security system fitting almost every budget.
We may not be able to be transported from place to place as in Star Trek, or travel through the universe in the speed of light, but in the CCTV world we have definitely come a long way.

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