High Definition - SDI CCTV (OLD)
High Definition – Serial Digital Interface (HD-SDI) CCTV is a progression from analogue standard definition CCTV (SD-CCTV). It utilises the same technology as used in broadcast HD television which gives a much enhanced image compared to standard resolution.
HD-SDI CCTV is positioned between standard definition and Mega pixel IP-CCTV.
The primary advantage of HD is one of cost.
Another major advantage is that the HD signal can be carried over conventional coaxial cable (RG 59) meaning that a full re-cabling can be avoided. (With IP-CCTV all cabling must be replaced with CAT5e/ CAT6 Network cable or adapters used)
HD-SDI CCTV offers the following advantages:
• From 1080 lines of resolution (2 Mega pixels) resulting in clearer images.
You can still utilise existing cameras on the HD-SDI DVR & upgrade cameras when required.
You do not have to upgrade all the cameras at once.
An Ideal application for hotels & apartment blocks where existing cabling can be utilised.