What is 'IP' CCTV?
{.....Home.....} {.....Products.....} {.....Corporate.....} {.....Support.....} {.....Contact Us.....}
Leaders in 'IP' Video and Audio
Currently to record CCTV images, installers and integrators use standard analogue CCTV cameras input to a digital video recorder (DVR). The cameras use the same cabling as we previously used for recording onto an old VCR. RG59 or similar coaxial cable is used to carry the video signal from the camera to the DVR.
When the video signal is input to a DVR, it is converted (encoded) by the DVR into a digital format for storage onto a hard drive. Some common formats are MPEG4, H.264, MJPEG or MPEG2. Each format has its strengths, but that doesnt matter here.
With 'IP' cameras, the main difference is the video is converted (encoded) to a digital format (IP) at the camera rather than at the DVR.
When the video signal is input to a DVR, it is converted (encoded) by the DVR into a digital format for storage onto a hard drive. Some common formats are MPEG4, H.264, MJPEG or MPEG2. Each format has its strengths, but that doesnt matter here.
With 'IP' cameras, the main difference is the video is converted (encoded) to a digital format (IP) at the camera rather than at the DVR.
Copyright © 2007 by "Scott & O'Shea Ltd" All Rights reserved.
This has several benefits.
1) Cabling is cheaper. 1x CATv cable (as used in computer networks) is used. Audio, PTZ Telemetry and Camera Power can also be transmitted along this cable. So one cable can do Video, audio, telemetry and power.
2) IP cameras can be added to existing computer networks, and the network can be used as a transmission system.
3) IP networks have redundancy. If a link is down, one of the benefits of IP protocol is that is finds another route.
4) The DVR now can be a lot leaner. Previously encoding cards were installed in the DVR, requiring a lot of processing power and memory. The heat build up was also always an issue.
5) Remote setup. A big advantage of IP cameras is that they can all be setup from any PC connected to the network.
6) Distributed collection points. As the IP cameras are run into an Ethernet switch, these switches can be located anywhere and groups of cameras can be connected to various 'nodes'.
1) Cabling is cheaper. 1x CATv cable (as used in computer networks) is used. Audio, PTZ Telemetry and Camera Power can also be transmitted along this cable. So one cable can do Video, audio, telemetry and power.
2) IP cameras can be added to existing computer networks, and the network can be used as a transmission system.
3) IP networks have redundancy. If a link is down, one of the benefits of IP protocol is that is finds another route.
4) The DVR now can be a lot leaner. Previously encoding cards were installed in the DVR, requiring a lot of processing power and memory. The heat build up was also always an issue.
5) Remote setup. A big advantage of IP cameras is that they can all be setup from any PC connected to the network.
6) Distributed collection points. As the IP cameras are run into an Ethernet switch, these switches can be located anywhere and groups of cameras can be connected to various 'nodes'.
