Professional HD-CVI cameras for existing coax cabling

Coax explained

What is a coax camera?

A coax camera is a security camera that sends the video signal to a recorder via a coax cable. This type of camera system is widely used when coax cabling is already present in a home, shop, office or business premises.

Modern coax cameras are technically well ahead of traditional analogue security cameras. With HD-CVI, for example, resolutions of 2MP, 5MP and even 8MP are possible, while you can often simply keep using your existing coax cabling.

Existing cabling

When do you choose a camera with a coax connection?

A camera with a coax connection is mainly worthwhile when a camera system with coax cabling is already in place. You then do not need to lay new network cables throughout the premises.

This makes coax cameras suitable, for example, when you:

• want to renew an older camera system;
• want to keep using existing coax cabling;
• want to replace a faulty analogue security camera;
• want to improve the image quality of your current camera system;
• want to connect several cameras centrally to a recorder.

Are you starting from scratch and is there no cabling yet? Then an IP camera may also be worth considering. In that case the video signal runs over the network.

HD-CVI

Modern camera surveillance over coax

The Secures range consists mainly of HD-CVI cameras from Dahua. HD-CVI makes it possible to transmit high-resolution images over traditional coax cabling.

This allows you to modernise an existing analogue camera system without replacing all the cabling straight away. Depending on the camera, functions such as Starlight, infrared night vision, WDR, audio and motorised zoom are also possible.

This way you combine the advantage of existing coax cabling with the capabilities of modern camera surveillance.

Camera types

Which coax camera should you choose?

Coax cameras are available in various shapes. Which version is most suitable depends mainly on where you want to place the camera and which area you want to monitor.

Image quality

Which resolution do you need?

Coax cameras are now also available in various resolutions. The Secures range includes cameras with 2MP, 5MP and 8MP, among others.

A higher resolution allows more detail to be captured. However, the resolution you need also depends on the distance, viewing angle, lens and the purpose of the camera surveillance.

If you mainly want to be able to see what is happening, a lower resolution may be sufficient. If you want to be able to recognise people or other details more clearly, 5MP or 8MP may be a better choice.

Night vision

Coax camera with night vision

Many coax security cameras have infrared or other technologies that allow camera images to be recorded even in low light.

Dahua uses Starlight or Full Color technology on several models, for example. These technologies have been developed to capture usable images even in difficult lighting conditions.

When choosing, therefore, look not only at the number of megapixels but also at performance in low light, if camera surveillance in the evening and at night is important.

Power over Coax

PoC: power over the coax cable

Some HD-CVI cameras support PoC, or Power over Coax. With this, both the video signal and the power supply can run over the same coax cable.

This can simplify installation, as no separate power cable is needed for each camera. Always check that both the camera and the recorder used are suitable for PoC.

Recording and storage

Which recorder do you need for coax cameras?

Coax cameras are connected to a suitable recorder, on which the camera images are stored centrally.

For a coax camera system you can use an XVR recorder. Which recorder you need depends, among other things, on the number of cameras, the supported resolution and the required storage capacity.

If you have four or eight cameras, for example, choose a recorder with enough available channels. Also take possible future expansion of the camera system into account.

Coax or IP

Coax camera or IP camera?

The main difference between a coax camera and an IP camera lies in the way the video signal is transmitted.

A coax camera uses a coax cable and is usually connected to an XVR. An IP camera, on the other hand, connects via a computer network and is often combined with an NVR recorder.

Do you already have good coax cabling? Then switching to modern HD-CVI cameras is often a practical way to renew your existing system. For an entirely new installation, an IP camera system can offer more flexibility.

Dahua

Buy a Dahua coax camera

Secures offers an extensive range of Dahua coax cameras for professional camera surveillance. You can choose from various shapes, resolutions, lenses and functions, including models with Starlight, WDR, motorised zoom and PoC.

Would you like to compare other solutions besides coax cameras? Then view the full range of surveillance cameras or the Dahua cameras.

Personal advice

Advice on a coax camera system

Not sure which coax camera suits your existing installation? Then look at the cabling in place, the recorder, the required resolution, the lens and any support for PoC.

Secures will gladly help you determine which cameras and recorder are compatible with your current camera system. This allows you to make optimal use of existing coax cabling while switching to modern camera surveillance.

Series and generation

Would you like to know what the Dahua series (Entry, Lite, WizSense, WizMind) mean and how to read a model code? Read the explanation on Dahua series and model codes.