CCTV DVR or NVR Camera Sytem:Guide to IP & Analog DVI Camera Cable

Security camera cables can be one of the most difficult parts of setting up a surveillance system. The type of security camera cable you need will depend entirely on what system you have. If you have an analog system or an IP system, you’ll use different kinds of cables.

Hetztronics use the most common security camera cable types RG-59 for Analog Or Cat6 Cat5e for IP Camera

If you have an analog or HD-TVI security camera system, you will need RG-59 Shotgun cable or Siamesh cable to send power to and receive video from your security cameras.

If you’re setting up an IP security camera system, you will most likely use cat6 Ethernet cables to send both power and data to your IP security cameras. Some system need a 48v -24v power supply POE ,Even 12vdc if sending power over your Ethernet cable is not an option.

Throughout the rest of this blog post, we’ll go more in depth about all the cable types we use for installations and its Related items, when setting up a hard-wired security camera system.

IP Security Camera Systems

An IP security camera system,Cameras connects through a hard wire cable called patch lead or ethernet cable. An Ethernet cable contains eight insulated copper wires split up into four pairs. Within each pair, the wires are twisted around each other for the whole length of the cable in order to reduce the signal interference. This is why the wires inside an Ethernet cable are called “twisted pairs.”

The main function of Ethernet cables is to connect one thing to a network of things, hence the label “network cable.” These cables connect IP security cameras to NVR DVR or CAT6/5 Transmission and through this network connection users are able to access, manage, and Live view there security cameras.

Ethernet cables do have a secondary function. If system has inbuit Power over Ethernet (PoE) or POE switch, Ethernet cables can also connect security cameras to power as well signal. With this method of cabling, one cable running to and from your security cameras to recorder.

PoE switches like a single port injectorm, A PoE extender, A full 48 port system,Also we using Network Video Recorders (NVR) for IP security system, it will come with a PoE switch built into recorder and instant plug-and-play power and video.

RJ45 Plug
RJ45 Plug
cat6 cable

Analog Security Camera Systems

RG59+2 composite cable allows you to send power and a video signal down just the one cable, saving you installation time and money fitting 1 cable instead of 2..

The two cables run in shotgun style can easily be separated to allow the power cores
to be taken to a power source leaving the RG59 to be crimped for connection to a DVR, camera or monitor.

The power cores are 0.2mm x 16 stranded to prevent interruptions
and are colour coded red 12V and black 0V to avoid any errors in connection

Siamese is a term that has a few references. It is used to describe things from a type of cat to conjoined twins to a language. In the data world, siamese cable stands for a cable that is built to include both video and power. In contrast to Power over Ethernet (PoE), the power is attached to the side of the data cable. Siamese cable provides separately insulated wires of power cables and coaxial cable. This allows proper power to be provided without interfering with the video transmission.Siamese cable is usually bought in a spool or a pull-box to run the cable easier. All that is left after running the cable is adding a termination on each end to provide the required video and power connections. Siamese cable lowers the time required for installation. Siamese cable is often used in Closed-Circuit Television (CCTV) setups and surveillance cameras. The cable provides all requirements for the cameras without the need of finding a power source next to the install location.

Following are some related items.

Cat6 Transmission : Ethernet Cable vs Siamese Cable CAT6 over coaxial cable

Question is why we use Ethernet cables for analog security camera systems? Using a video balun to convert the Ethernet cable to a BNC connection so benefits are …..

  • Now a days, Ethernet cable runs may already exist, saving the time – cost that comes from laying new cables
  • Ethernet cables are cheaper than Siamese cables.
  • Ethernet cables can carry data for longer distances.

A video balun, Ethernet cable serves pretty much the same purpose as a Siamese cable. There’s only one major difference. The Ethernet cable is sending power and video data inside the same cable through twisted pairs, whereas the Siamese cable is sending power and video data through two separate insulated cables that are connected together.

When running a lot of cable, Ethernet is cheaper and easier to work with. It’s a great option for installing an analog system. If you typically install IP camera systems and have a bunch of Ethernet cable at your disposal, there’s no need to invest in a whole spool of another cable.

The downside of using Ethernet cables instead of Siamese cables is video interference. The twisted pairs inside the Ethernet cable help keep interference to a minimum. However, twisted pairs within the same cable are not nearly as good at preventing signal interference as two separate insulated cable runs. Since the Siamese cables keep these two connections separate, these cables will give you slightly better video quality without the crosstalk.