HD-SDI CCTV Systems

Up until recent times the choice of CCTV System situation was relatively simple; Low budget = (outdated) DVR based Analogue CCTV versus higher budget = HD IP CCTV. It was still relatively simple to outline the principal advantages and operational key attributes of either solution. 

·         Analogue CCTV  utilises Coaxial cabling and is recorded on Hard Drives on a DVR (Digital Video Recorder as described in our last post

·         HD IP CCTV  utilises standard Network Infrastructure and Cat 5 cabling which streams to IP NVRs  and has high quality megapixel resolution

With the introduction of HD SDI CCTV Technology, the clear borders of obvious distinction have somewhat blurred. Before we delve into technical depths, let us outline the basic structure as with the alternative technologies above:

·         HD SDI CCTV > utilises Coaxial cabling > records to HD SDI DVRs > enables Full HD and beyond (typically 3 MP) resolution

HD SDI Installation Cost Comparison

Typically and generally quotations received for the installation of analogue systems should be the most affordable > followed by HD SDI in the middle ground > followed by HD IP CCTV. If your budget allows,  It is the author's opinion that IP CCTV is the best ROI option for most applications unless the project is an upgrade from analogue, providing an existing coaxial cabling structure and camera positions are not going to be altered much.

Basically HD SDI gives you almost an IP quality video image utilizing analogue Coaxial Cabling.

Stay tuned for our next post on IP Surveillance Systems.