If you have been looking at installing or upgrading your CCTV you will no doubt have come across terms such as; PTZ, PIR, DVR, NVR, Analytics, PoE. 
 
But what do they mean and how do they effect what you need? 
 
This short Jargon buster is here to help and will be updated regularly so make sure you keep checking and if there are any you think we should add be sure to let us know. 
 
If you have been looking at installing or upgrading your CCTV you will no doubt have come across terms such as; PTZ, PIR, DVR, NVR. 
 
But what do they mean and how do they effect what you need? 
This short Jargon buster is here to help and will be updated regularly so make sure you keep checking and if there are any you think we should add be sure to let us know. 
 
Analogue - cameras running on an analogue CCTV system transfer video signals in the traditional base band format back to a DVR. 
 
Angle of View - In the context of security cameras, this is the range of angles through which a camera is able to focus before the image becomes distorted. A wide angle of view will give a clear image close up while a narrow angle of view is better for focusing over distance. 
 
Cat 5/6 Cable - A CAT 5 / 6 or category 5 / 6 cable can transmit information at high speed (100+ Mbps) and is usually associated with voice and data applications. 
 
Depth of field - The range across which a lens is able to focus. Depth of field is measured as the distance behind an object combined with the distance in front of an object when said object is in focus. 
 
DVR - The general term for the computer that takes the incoming signal from an analogue camera or series of cameras and digitally converts, compresses and stores it. It is the modern version of the security VCR . 
Some DVR's also provide internet connectivity for remote access and alarm emails. 
 
Field of View - The maximum viewing angle seen though a lens. 
Hybrid System: hybrid CCTV systems combine analogue and IP video. This can be a great way to start upgrading your CCTV system to IP without replacing everything at once - though once they see the difference, most people are pretty quick to finish the job! 
 
IP - Generally this term in a CCTV System means the camera itself converts footage into data which is transmitted and broadcast as a digital stream over an IP network. As this stream comes straight from the camera, IP systems allow more flexibility in how and where the video is recorded. 
 
NVR – Network Video Recorder, is a device attached to a network through which IP cameras are transmitting their digital video. The NVR will be receiving this video data and storing it onto digital media, such as a computer hard disc drive. The NVR will be the device that also provides for remote access to live video, playback, alarms triggers and other events, such as sending email alerts to system users. 
 
PIR - A passive infrared sensor (PIR sensor) is an electronic device used to detect motion 
 
PTZ - the name of the PTZ camera refers to its ability to pan, tilt and zoom, allowing the camera to be controlled remotely. 
 
Static Camera - static cameras are fixed with a view of one particular scene. These are typically supplied if you need to cover concentrated risk areas as they are extremely effective when the correct lens configuration is utilised to pinpoint details such as facial recognition, number plate recognition, retail transactions etc. 
VMD - Video motion detection (VMD) is a function that allows security systems to recognise movement (as represented by a change in recorded pixels) and begin recording in response. 
 
 
If there is more you need to know about installing a CCTV system to protect your business don’t hesitate to get in touch now and one of our experts will be more than happy to have a chat and give you some tailored advice. 
 
#Security 
#WhiteStar 
#ElectronicSecurity 
#CCTV 
#wedofarmore 
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