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Here we will look in detail at the wiring diagram of IP and AHD video surveillance systems. This diagram will help you to connect your video surveillance system correctly!

At the center of everything we have a video recorder. This is where the recording takes place. It is essentially the same computer, with the same motherboard and the same information processing principles. A hard disk is installed inside the DVR. It comes with video surveillance systems, as a rule, does not go. It is purchased separately depending on the volume you need. In 99% of the DVR is installed hard disk 3.5 inches. Note also, external hard disks are not suitable, you need hard disks with sata connectors. As a rule, external hard disks have micro usb connectors. So, at the DVR at the back we see connectors bnc. This is where the camera is connected. IT connectors transmits only video signal, we have power is transmitted separately, through a socket, but we will return to it a little later. Here we also have a connector that goes to the monitor through a vga connector. And this cable, it always comes directly with the monitor. You can also connect through the hdmi connector. Then you will need a separate hdmi cable and separately, in fact, the TV that supports the hdmi format. This is, by the way, the best way to output a signal from your video surveillance system is hdmi. It is an order of magnitude better than running. This is even visible to the unarmed eye.

Next we have the Ethernet connector rj45. It is needed to connect the DVR to the network. That is, if, say, you are a programmer, and you want to connect everything there at your enterprise, let’s say your DVR, you connect it to the network to the server or to a router. If you want to set up on your video surveillance system remote viewing from a phone, from a tablet, from a computer, then the same thing: you connect usually patchcord (it is sold in computer stores, it also comes with the router itself) plug into the Ethernet-connector. And here, on the diagram we have it written that you can also connect a computer monitor with the cable. But here, to be more precise, a laptop is specified and the system unit is connected and already through the computer, through the program cms you can view and manage videos. That is, if you are on the same network, if remotely, it will be impossible to manage the video (that is, to view some archive). And if you are in the same network, then through cms you can control the motion sensor, view the archive and so on. It is also presented here that through the router we also have a feed through the internet, and just here is configured remote viewing from your CCTV cameras on your phone or computer.

Here we have a power connector, which powers the DVR itself. Also (not described here) there are 2 USB ports. One, as a rule, is for connecting a mouse, 2 – for connecting a flash drive to reset information and a toggle switch.

It also has an rs-485 connector, which is a connector for connecting rotating CCTV cameras.

So, let’s go to the camera. From the camera we see that through the bns connector, pay attention, if you buy the cable separately, the connectors will need to solder independently – it is necessary ideally. This is to do, of course, with experience, so that the quality of signal transmission was good. But it is easier to take actually ready-made coils. They are available for 10, 15, 18, 40 meters. This is how the transmission goes from the “mom" connectors to the camera itself. Here also goes the power through the “mom-and-pop" connector and turns on the “mapping". That is, if several cameras are connected, then the power splitter is used, the so-called “snake Gorynych" in one end of the “snake Gorynych" is inserted power supply, from the other end goes to power several cameras at once, that is, from 2 to 8. If more than 8 channels you have a video surveillance system say 16, then used two “snake Gorynych" and, accordingly, two power supplies.

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