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Intruder, Fire, CCTV, Emg Light, Access Control
Closed circuit television (CCTV):
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<blockquote data-quote="Flying Scotsman" data-source="post: 265" data-attributes="member: 20"><p>CCTV Warning Sign</p><p></p><p>CCTV is a collection of video cameras used for video surveillance.</p><p></p><p>It is different from broadcast television as all the equipment is directly connected together with cables or wireless transmitters that can not be received by standard television aerials or equipment.</p><p></p><p>The transmission of the video signals are only intended to be accessible by the equipment on its dedicated closed circuit.</p><p></p><p>CCTV is generally used in areas where there is an increased need for security, such as banks, airports and town centres. CCTV was initially developed as a means to increase security for banks but over time it has developed into a cost effective means of general surveillance and home security.</p><p></p><p>A basic CCTV system comprises of the following;</p><p></p><p>*</p><p></p><p>Camera, lens and power supply.</p><p></p><p>*</p><p></p><p>Recording device, VCR or a digital video recorder.</p><p></p><p>*</p><p></p><p>A monitor.</p><p></p><p>Cameras:</p><p></p><p>CCTV Camera</p><p></p><p>Cameras are available in colour, monochrome or cameras that have the ability to switch between colour and monochrome (day/night cameras). The cameras that switch between colour and monochrome are intended for environments of low lighting at various times. There are 2 reasons for using a camera that can switch between colour and monochrome; monochrome cameras are much more sensitive to low lighting environments, and monochrome cameras can also be used with Infra red lighting. When there is adequate available light there is the added advantage of using a colour camera for recording colour information, for example the colour of a car or a person</p></blockquote><p></p>
[QUOTE="Flying Scotsman, post: 265, member: 20"] CCTV Warning Sign CCTV is a collection of video cameras used for video surveillance. It is different from broadcast television as all the equipment is directly connected together with cables or wireless transmitters that can not be received by standard television aerials or equipment. The transmission of the video signals are only intended to be accessible by the equipment on its dedicated closed circuit. CCTV is generally used in areas where there is an increased need for security, such as banks, airports and town centres. CCTV was initially developed as a means to increase security for banks but over time it has developed into a cost effective means of general surveillance and home security. A basic CCTV system comprises of the following; * Camera, lens and power supply. * Recording device, VCR or a digital video recorder. * A monitor. Cameras: CCTV Camera Cameras are available in colour, monochrome or cameras that have the ability to switch between colour and monochrome (day/night cameras). The cameras that switch between colour and monochrome are intended for environments of low lighting at various times. There are 2 reasons for using a camera that can switch between colour and monochrome; monochrome cameras are much more sensitive to low lighting environments, and monochrome cameras can also be used with Infra red lighting. When there is adequate available light there is the added advantage of using a colour camera for recording colour information, for example the colour of a car or a person [/QUOTE]
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Closed circuit television (CCTV):
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