Bolide Full Product Catalog

Easy iPac Installation Guide

Multi IP Cameras Installation Guide

NVMS(Network Video Management Software) Installation Guide

SVR9000s Remote Setup Guide

SVR8000 Remote Setup Guide

SVR8000 Series DVR Comparison

SVR9000s S-Box Series DVR Comparison

CCTV Glossary
The following is a list of commonly used terms related to CCTV, with a brief description of the meanings. These terms are not specific to Bolide Technology Group, they are general terms used throughout the CCTV industry. If you don't find the term you are looking for, or you find any error, please contact us.
A  B  C  D  E  F  G   H  I  J  L  M  N  P  R  S  T  V  W
Liquid Crystal Display (LCD)
This is a technology used for flat screen displays. Aside from being smaller and lighter, it also has the advantage of using less power than traditional cathode ray tube screens.

Line Amplifier
This device takes a weak video signal as its input and outputs a new stronger version of the same signal. These are useful/necessary for transmitting video over very long cable runs. This is sometimes known as a video line corrector.

Line Fed Camera
This refers to the use of equipment that can provide power to the camera and take the video signal along the same cable. It normally involves placing an "encoder" unit at one end and a "decoder" unit at the other. These units effectively combine and then split the power from the video signal at either end of the cable run.

Looping
This refers to connecting an additional device in parallel with an existing video cable. For example, when driving a video recorder as well as a monitor from the same video signal, simply by T'ing off the cable.

Lux
This is a measure of the amount of light striking a surface. i.e. the luminus flux density at a surface. One lux is one lumen per square metre. Cameras for use in good lighting conditions, or in daylight would normally be rated at 2 Lux or more. Cameras with a Lux rating of 0.2 Lux or less would be considered low-light cameras. It is not possible to get good colour definition in low light levels, so in general low light cameras are always monochrome. However, day/night cameras use electronics to switch from colour during the daytime, to monochrome during night or low light conditions. Many low light cameras are also infra-red sensitive, so that infra-red illumination can be used. Particularly useful in zero light conditions.

Luminance
This refers to the part of a video signal that carries the monochrome information. i.e. brightness information.