4 camera cctv system

4 camera cctv system You should read article below before you buy IP Camera.



Yes, you can't use both Wi-fi and PoE at same time. When you connect the IP camera to your router, you have to choose one of them, either Wi-fi or PoE.

Before you decide to buy an IP camera or a whole IP camera system, you should analysis the assembly environment and investigate which functions you want to attain.

Wireless or PoE, which is the best? As a mature technician who may have four years in video monitoring industry, my response to this question is PoE is the advised choice.


WiFi is some sort of wireless technology that allows network devices transmit data through cellular sign (2.4GHz UHF music group, 5GHz SHF strap).

Obviously, once the IP camera supports Wireless, the camera can hook up your router without using hardwired connection. WiFi can enable IP camera become portable, this is actually the advantage of WiFi.

But there are two drawbacks on WiFi, which are; every electronic devices require power supply, that means your IP camera still requires cable tv for connection.

Up to now, I haven't found any IP video cameras have the ability to operate with battery power.


Limited WiFi transmitting distance is another problem.

How far does indeed Wi-Fi reach? It isn't easy to answer this question.

When talking about WiFi coverage, we've many things to consider including vitality rate of Wi-fi device, environment (indoor or outdoor) and even more.

Typically, a home/office router (TP-Link) can offer WiFi coverage extends to up to 10 meters interior.

When WiFi devices are working outdoor without hurdle, the transmitting distance will be much far.

To extend the Wireless coverage or distance, you can set up WiFi access point. Such an gain access to point (or hotspot) has a variety around 20 meters (66 legs) indoors and a larger range outdoors.


PoE means Power over Ethernet, this is not a fresh technology, the first device adopts PoE technology premiered by Cisco in 1999. Transmitting both data and power over sole Ethernet cable connection (Pet cat5/6) is the key feature of PoE technology.

So long as your IP camera helps PoE, you merely need to hook up it to a PoE NVR or PoE switch, then it works. PoE technology enable IP camcorders support plug-and-play assembly, which greatly reduced the unit installation procedures, and eliminate the necessity of electricity cable and offer.

Today, PoE has two standard including IEEE802.3af, and IEEE802.3at. IEEE802.3af can offer maximum vitality rate is to 15.4 W of DC ability (lowest 44V DC and 350mA) to each device.

In order to provide power supply for high electric power ingestion devices, the IEEE association made another new standard - IEEE802.3at, this standard also known as PoE+ or PoE plus, provides up to 25.5 W of ability.

PoE technology has been trusted in:

-           IP surveillance system ( Camera + NVR)

-           VoIP Phones

-           WiFi Access Point

-           Network Routers

-           Industrial devices

4 camera cctv system


Let's first of all discuss the benefits of PoE. A PoE IP camera can get the power from the Ethernet cable connection, no need extra electric power cable or power.

The maximum interconnection distance is 100 meters, which is ten times than Wi-fi. Since data transmitting is through wired wire, there is no signal disturbance, no transmission jamming.

For properly working of PoE devices, Vitality sourcing equipment (PSE) is vital component, it's rather a network PoE switch, or an intermediary device such as PoE injector.

A PoE switch is a lot expensive than a traditional network move, which increased a little on cost.

#6. Wi-fi VS POE

No best answer, only right solution. If you wish to install one single IP camera for home monitoring, you can choose to use Wireless IP camera.

Guaranteeing the WiFi IP camera is installed within coverage of your Wireless router.

For several IP camera, PoE is preferred. PoE is a lot reliable than Wireless in conditions of data transmission.

Furthermore, an IP camera system based on PoE is much easier to take care of, centralized electric power solution becomes available e.g using uninterruptible power supply (UPS).

From my own investigation of monitoring market, I found that WiFi IP cams are widely used for non-professional interior home security, and PoE IP camcorders are installed for outdoor surveillance system. But if you select WiFi IP Camera please read article below.

So how will you determine which cellular IP camera suits your preferences?

Firstly, establish the thing you need. Many buyers often don't really know which kind of cordless IP camera suites and would fulfill their needs. As a result, they get sucked into buying cordless IP cams that are beyond what they want.

Before clicking or picking on that item to buy, always consider: what conditions will the camera be situated in? (Hallway, outdoor, low light or glowing); what precision of data do you want to catch? (HD images with or without audio) and most importantly, what's your budget?


Second, another essential feature to consider before sometimes a radio IP camera is the skillet and tilt range.

Needless to say, this feature will rely upon the environment where you intend to use the camera.

A wide pan and tilt range is never an awful thing.

Thirdly, zooming capability of the wireless IP camera is also vital.

Make sure that you check the kind of zooming capability, whether its optical or digital.

A lot of the IP cameras in the market are digital, but you'll never fail to find one with optical focus.

Fourth, test the equipment before purchase.

This is vital, in particular when you are buying from your local digital store.

Always request for a test setup as this will permit you to look for the picture quality of the camera.

In addition, it will offer you an chance to learn how to create the equipment in a proper manner to make certain you have the best image and sound quality.

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source :securitycamerawifi


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