Page 5 - alienHero HD-SDI Guide

HD-SDI

Why use HD-SDI CCTV?
Aside from the obvious advantage of broadcast quality images to help with clearer 1920 x
identifcation on recorded CCTV footage, HD-SDI also has a number of advantages 1080px
over IP alternatives.

HD-SDI works with standard RG59 co-ax cable allowing an easy upgrade path for
installers to replace analogue CCTV equipment without re-cabling a premises or
modifying the customer’s network confguration.

Using RG59 cabling means that an HD-SDI CCTV system isn’t reliant on the restrictions
presented trying to transmit CCTV images over a network. It is a robust standalone
solution that doesn’t suffer from network interruptions caused by bandwidth issues
or latency in processing signals and data. This means smoother images with no
unexpected lapses in recording.
HD-SDI is also a global standard whereas IP standards and solutions do vary across
the market. Although “ONVIF” (Open Network Video Interface Forum) is trying to set
IP standards in reality many IP CCTV products in the real world fail to work with each
other correctly, where as HD-SDI has far few issues. (see pg 6 for other benefts).

What is the future for HD-SDI? 100%

Further exciting developments in HD CCTV are currently taking place which will Digital
see even more benefts for embracing this technology, these include sending the
signal further without the use of repeaters (200mtr plus), down CAT5/6 cable and
bi-directional communication. HD-SDI will really give IP CCTV a good run for
its money over the next few years when you consider its practical advantages for
system upgrades.

In conclusion...

HD-SDI is an opportunity for users of CCTV equipment to get huge benefts in system 1080p
performance and it’s a great opportunity for CCTV installers to win new business on
the trade winds that the new technology generates.

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