CCTV systems

Y

Yousef1985

New Member
Hi all,

I am new in this forum.
I know that the CCTV systems are only two:

1) conventional system: the cameras are connected to DVR via coaxial cables, and the power source is separate.

2) IP system:the cameras are connected to switch via cat.6(or 5) cables, and the power is over Ethernet.

is this information correct?
 
That is basically correct, although you can send conventional analogue signal over Cat5/5e/6 cable using a Video Balun (usually passive video baluns unless the runs are very long). If the cable runs aren't particularly long you can also send power over the Cat5/5e/6 cable too. There is more information on this in our Buying Guides on [url]www.cctv42.co.uk[/URL].

There are also wireless cameras which will either connect to your wireless network, or wirelessly connect to your DVR, but I don't feel the quality of wireless cameras is quite good enough...especially for the money you would have to spend.

Matt
 
Yes, that’s a good basic way to divide CCTV systems, but there are a few variations. IP cameras typically use Ethernet cabling such as Cat5e or Cat6 and can receive both data and power through PoE, which makes installation fairly straightforward.


One thing worth mentioning is that cable quality matters, especially on longer runs and PoE installations. Solid copper Ethernet cable is generally a better choice for permanent CCTV runs than CCA because of its lower resistance and better power delivery.


Analogue systems can also use twisted-pair Ethernet cable with video baluns, so coax isn’t the only cabling option for traditional CCTV.
 
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