By: Arthur Cooper
Submitted: 2011-03-25 11:38:12 | Word Count: 664
The phrase CCTV systems can cover a broad range of different video camera systems. Generally speaking, when we think of a CCTV system, we are usually referring to a video monitoring, surveillance, and/or security system. CCTV is an acronym for Closed Circuit TeleVision however, more often then not in today™s age of technology, these systems are often called digital video security and surveillance systems.
CCTV systems got their name because of the way the systems were initially developed. Closed Circuit Television basically referred to a system by which a video camera transmitted the video images it created through a cable directly to a monitor or Digital Video Recorder or DVR. This differed from the studio broadcast television that sent their video images through an antenna out to the general public. Anyone with a television or other type of receiver could view the broadcast audio and/or video image.
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Today, CCTV systems are based on the same idea; however, the transmissions are no longer confined to being sent over a dedicated video transmission cable. A CCTV system today may send its video and audio wirelessly on a specific frequency to a specific receiver or they can even utilize the Internet to send their signals just about anywhere in the world (again, to a specific “receiver” or group of individuals).
CCTV systems today share some of the older terminology relating back to the original analog video systems. For example, older analog CCTV monitors were actually electronic tubes, Cathode Ray Tubes or CRTs to be exact. These tubes shoot electron beams in horizontal lines on the glass screens to produce a video image. Thus, the clarity or resolution of these cameras was usually designated by the number of Television Lines or TVLs that it created. Lower resolution cameras produced around 300 TVL and maximum high definition cameras produce up to 650 TVL.
The cameras and monitors today are digital, and therefore produce their images using pixels, tiny dots of color analogous to the dots seen in newsprint up close. However, they often still use the TVL designation to define the resolution of the cameras. One reason for this is that although CRT monitors are seldom marketed anymore, consumers may still have plenty of CRT type monitors they can use for their system.
Today, a complete CCTV system usually consists of one or more digital video cameras, a Digital Video Recorder or DVR, and one or more optional monitors. Security Camera King offers several complete CCTV system packages to meet just about every security, surveillance, and monitoring need. Our featured package systems are based on our three signature DVRS, the Elite-Mini, the Elite Series, and the Ultimate Series.
These package systems are further available based on the system being a 4, 8, 16, or 32 channel (camera) system. Note: The 32 channel system is only available with the Elite Series DVR. Finally, we break each one of these packages down based on cable and power supplies. We offer each system with either “plug ‘n play” pre-cut and connector fitted cables and space saving power supplies or with bulk cable, connectors, and a power distribution supply box.
Our Elite-mini and Elite Series systems come with the appropriate number of 420TVL Vandal Proof Indoor/Outdoor Dome Day/Night Infrared Vision cameras. The cameras have an approximate infrared range in total darkness of about 50 to 60 feet. The cameras have an outdoor rating of IP66 and so are very suitable for outdoor or indoor use (our part number for the camera is Product# OD-LX420IR50 for additional details and specifications).
Our Ultimate Series systems come with the appropriate number of 520 TVL Vandal Proof Indoor/Outdoor Dome Day/Night Infrared Vision cameras. This cameras are true high definition cameras with a resolution of 100 TVL more than those above. These cameras also have an approximate infrared range in total darkness of about 50 to 60 feet. They are also suitable for outdoor or indoor use (our part number for the camera is Product# OD-LX520IR50 f0r additional details and specifications).
Security Camera King has put together this system packages to offer you the highest quality yet simplest to install CCTV systems on the market today. By offering you these as complete system packages, we can make them available at competitive prices that are hard to beat anywhere else for equipment with the same features. In addition, we allow you to make upgrades if necessary, so that you may “tailor fit” your system to your specific needs.
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