CCTV Terminologies: Important terms to know

CCTV terminologies
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Ever came across a certain term and have no idea about it while searching for surveillance cameras? We have got you covered. Here is a list of the most common CCTV terminologies you need to know. From complex acronyms to startling numerics, these have all the meanings defined for the terms common in the CCTV world:

Our Pick
1. ActiveX

ActiveX is a standard that enhances software to connect with each other in an appropriate environment. However, the programming language of different software does not matter in ActiveX. Internet browsers might come into contact with ActiveX controls, ActiveX archives, and ActiveX scripts. Therefore, ActiveX controls are regularly downloaded on their own in the system.

2. Auto Iris

With an auto-iris focal point, the iris of the camera is controlled consequently to manage the intensity of light entering it. This is great for camera establishments in open-air areas, high-contrast circumstances, and regions where lighting conditions change.

3. Analog

In CCTV, simple alludes to a Camera Video Format. This depicts the frameworks and parts that utilization the Video standard NTSC/PAL composite video designs. Also, new innovation has permitted Analog to accomplish high goals which are referred to as HD Analog or HDCCTV. Current HD Resolutions are up to 8MP starting in 2019.

4. Aperture

One of the frequent CCTV terminologies, an aperture is an area at which is the light is striking on the image sensor.
A lower F-Stop (aperture) number shows that the sensor can absorb more light. Therefore, an f 1.0 aperture means that the camera is efficient even in low light levels.

5. Aspect Ratio

A ratio of vertical to horizontal image size in a camera view. This ratio varies on different screen sizes. Hence, hard to standardize this ratio.

6. Bandwidth

A machine/network’s bandwidth is the range of frequencies that a gadget can encode or decipher. The video utilizes more bandwidth than sound. Hence, requiring a more extensive transmission capacity.

7. Bit rate

In IP video it for the most part alludes to the piece rate from an IP camera. Controlling the piece rate controls the transmission capacity expected to move information from the camera. The camera processor will naturally restrict the most extreme cycle rate sent from the camera to the digit rate-setting chosen.

8. Bit

A bit is the smallest unit of measure of a data transmission signal. It can hold one analog signal i.e. 0 or 1. However, several bits combine a data packet that is shared between one place to another.

9. Camera

This has to be on our list of common CCTV terminologies. This is the essential video recording gadget that has many types and arrangements.
Some are box cameras, projectile cameras, arch cameras, PTZ cameras, PTZ arch. An IP or HD camera can be any of these and interface straightforwardly to an organization.

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ZOSI 1080P Hybrid 4-in-1 HD TVI/CVI/AHD/CVBS 1920TVL 2.0MP CCTV Camera
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XVIM 8CH 1080P Security Camera System
Honic Sony Exmor Sensor (TVI/AHD/CVI/1200tvl) Security Camera

10. CCTV

It is an acronym that means Close-Circuit TeleVision. Initially, this was depicted as a framework with cables and wires straight from cameras to survey gadgets with no external world associations. However, the Internet has changed all that. Presently you can get to any DVR with program programming through the Internet. CCTV has kept on being utilized to allude to observation Cameras and frameworks in every form.

11. COAX (Coaxial) Cable

A kind of protected cable equipped for conveying a wide scope of frequencies (video or radio) with exceptionally low transmission. These cables are largely utilized in CCTV and HD CCTV applications with BNC Connectors.

12. Contrast Ratio

Another ratio is related to camera words. The contrast ratio is the ratio between white and black on any projected image on the screen. A lower contrast ratio will project the image without any vibrant colors and only in black and white shade.

13. Digital Zoom

This is defined as developing an area of a picture by adding extra pixels inside the picture to fill the bigger region. It makes the image region bigger with the relatively compromised video quality. The inverse would be Optical Zoom where a camera truly zooms into a picture utilizing every single accessible pixel.

14. DVR

The acronym stands for Digital Video Recorder that is a video recording hardware platform. This is used for appropriate recording and processing of the video that is being captured by the surveillance cameras installed. The usual DVRs in the market range from 4 channels up to 32 channels.

15. Ethernet

Ethernet is a composition of frame-based technologies for LAN. It refers to a number of networking standards in the physical and data link layers in the OSI model of networking.

16. Frame Rate

Same meaning with the FPS (Frames Per Second), the Frame rate is the number of frames (images) produced by an image capturing device in a given amount of time (mostly one second).

17. HDMI

HDMI stands for High Definition Multimedia Interface. This is a cable interface for computer devices that provides the media and data in higher resolution. Also, it provides better quality than VGA or composite alternatives.

18. LAN

LAN is another acronym in common CCTV terminologies that stands for Local Area Network. It is a network established between certain computer systems in a small area. The number of computers can be as low as 2.

19. 240p/360p/480p/720p/1080p

These terms are the resolutions qualities of a video where 240p is of the least quality and 1080p being fully high definition (HD).
The ‘p’ stands for pixels.

20. 4K Resolution

The 4K is the clearest resolution of all. It is the four times of a 1080p resolution.
However, a 4K resolution still has two standard resolution ratios i.e.
3840 x 2160, or 4096 x 2160.

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5 Comments

  1. 1
  2. 2

    For a home video Surveillance System, most people need between 2 and 6 security cameras. If it’s for a business, you may need anywhere from 16 to 64 cameras, depending on the size of your property.

  3. 3

    I agree with you that a security system is an important part of your home and will help you sleep peacefully and worry-free. I ordered cameras for outdoor surveillance after reading a lot of reviews on light in the box and reading a lot of articles about the types of security systems and their correct operation. I like the idea of a good home security because it helps me worry less about my family, especially when I’m not at home.

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