FAQ

What is the difference between a DVR and an NVR?

DVR'S use dedicated point to point analogue cabling to bring the analogue signal from the camera location to it.

NVR'S use the IP Network technology as the backbone for transporting information. The digitalised video, audio streams of the IP camera can be transmitted by connecting its LAN part to IP network.

The NVR can be placed at any place for the video recording from anywhere within the network access.

NVR's have:

  • high image quality
  • remote accessibility
  • cost effective
  • storage is more flexible
  • scalability

How Do I choose a CCTV Camera?

Choosing the right CCTV Camera for your digital surveillance system is very important. The Digital CCTV Camera, together with a CCTV Lens, uses a CCD (Charge Coupled Device) sensor that captures the image and turns it into a signal that is sent to the monitor or surveillance system.

When choosing a CCTV camera and lens for a digital CCTV system you will need to decide the following.

Where will the camera be situated Indoors or outdoors

  •  Will the camera have to record in low-light conditions such as at night?
  •  How wide or narrow an angle of vision is required
  •  How far away objects you wish to record will be from the camera
  •  What your budget is.

 At CCTV Central we have a full range of cameras to suit your budget.

What is H.264?

H.264 is the recording codec that is used when saving the video files captured from your CCTV Cameras. The H.264 codec is like AVI, or MPEG but...

What is the difference between IP and Analogue cameras?

IP cameras use the Internet Protocol (IP) to transmit video signals over standard network infrastructure whereas analogue cameras typically use coaxial cable for video transmission. Most IP cameras can also be powered via the same network infrastructure using POE (Power over ethernet), whereas analogue cameras require additional cabling for a separate power source.

IP cameras can deliver full HD (1080) image quality, whereas analogue cameras can only deliver analogue quality images with a lesser image quality.