01/27/2016 00:11

What does CCTV stand for?


CCTV stands for Closed Circuit Television. It is a television system that operates on a “closed loop” basis. Unlike broadcast television, which is available to anyone with a suitable receiver, CCTV pictures are only available to those connected to the loop.

Advantages of IP systems over Analog systems:

1. IP systems have superior image quality - IP cameras can deliver high definition images of up to 8megapixels in resolution, compared to a maximum of 650TVLine (equivalent to 0.4 megapixel) in analogue cameras.

2. IP systems can use the existing network infrastructure - Unlike analogue cameras, IP cameras don’t have to be wired back directly to the recording device, they can be wired to the nearest network hub or switch and the existing network infrastructure can be used to carry video signals to the NVR, eliminating the need for un-necessary wiring.

3. IP systems have superior wireless capabilities - IP cameras have the flexibility to integrate with a wireless network and are virtually unlimited in terms of expansion. Analogue wireless cameras use radio frequencies and are limited to about sixteen cameras before they reach full capacity.

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