2 camera ip cctv
WIFI OR PoE FOR IP CAMERA, WHICH MAY BE THE BEST?
#1. NO NEED TO USE BOTH Wi-fi AND PoE
Yes, you can't use both WiFi and PoE at same time. Whenever you hook up the IP camera to your router, you have to choose one of these, either Wi-fi or PoE.
Before you decide to buy an IP camera or a complete IP camera system, you should analysis the unit installation environment and investigate which functions you want to attain.
Wi-fi or PoE, which is the best? As a senior technician who have four years in video recording monitoring industry, my response to this question is PoE is the advised choice.
#2. WHAT'S WIFI
WiFi is a kind of wireless technology that allows network devices transmit data through cellular signal (2.4GHz UHF band, 5GHz SHF group).
Obviously, after the IP camera helps Wireless, the camera can connect your router without needing hardwired connection. Wireless can permit IP camera become lightweight, this is actually the advantage of WiFi.
But there are two disadvantages on WiFi, that are; every electronic devices require power supply, that means your IP camera still requires cable television for connection.
So far, I haven't found any IP camcorders have the ability to operate with power packs.
#3. HOW FAR Will WI-FI REACH?
Limited WiFi transmission distance is another problem.
How far does Wi-Fi reach? It isn't easy to answer this question.
When talking about WiFi coverage, we have many things to consider including electric power rate of Wi-fi device, environment (indoor or outdoor) and even more.
Typically, a home/office router (TP-Link) can provide WiFi coverage grows to up to 10 meters in house.
When Wireless devices are working outdoor without hurdle, the transmission distance will be much far.
To increase the Wi-fi coverage or distance, you can set up WiFi gain access to point. This gain access to point (or hotspot) has a variety of about 20 meters (66 legs) indoors and a greater range outdoors.
#4. WHAT'S POE?
PoE means Power over Ethernet, this isn't a new technology, the first device adopts PoE technology premiered by Cisco in 1999. Transmitting both data and power over solo Ethernet wire (Kitty5/6) is the main feature of PoE technology.
As long as your IP camera helps PoE, you merely need to connect it to a PoE NVR or PoE switch, then it works. PoE technology allow IP camcorders support plug-and-play unit installation, which greatly reduced the unit installation procedures, and eliminate the necessity of ability cable and offer.
Today, PoE has two standard including IEEE802.3af, and IEEE802.3at. IEEE802.3af provides maximum power rate is to 15.4 W of DC power (minimum amount 44V DC and 350mA) to each device.
To be able to provide power for high power usage devices, the IEEE association made another new standard - IEEE802.3at, this standard also called PoE+ or PoE plus, provides up to 25.5 W of power.
PoE technology has been widely used in:
- IP surveillance system ( Camera + NVR)
- VoIP Phones
- WiFi Access Point
- Network Routers
- Industrial devices
#5. Downsides AND Positives OF POE TECHNOLOGY
Let's first of all discuss the benefits of PoE. A PoE IP camera can get the power from the Ethernet cable television, no need extra electric power cable or power.
The maximum connection distance is 100 meters, which is ten times than WiFi. Since data transmitting is through wired cable connection, there is absolutely no signal interference, no sign jamming.
For properly working of PoE devices, Ability 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 transition, which increased just a little on cost.
#6. WIFI VS POE
No best solution, only right solution. If you wish to install a unitary IP camera for home monitoring, you can opt for WiFi IP camera.
Making sure the Wireless IP camera is installed within coverage of your Wi-fi router.
For several IP camera, PoE is recommended. PoE is much reliable than Wireless in terms of data transmission.
Furthermore, an IP camera system based on PoE is a lot easier to control, centralized vitality solution becomes available e.g using uninterruptible power supply (UPS).
From my own investigation of surveillance market, I found that Wireless IP video cameras are trusted for non-professional interior security, and PoE IP camcorders are installed for outdoor security system. But if you select Wi-fi IP Camera please read article below.
So how do you determine which wireless IP camera suits your needs?
Firstly, establish what you need. Many customers 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 wireless IP video cameras 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 dazzling); what detail of data do you want to take? (HD images with or without audio tracks) & most importantly, what's your budget?
Second of all, another essential feature to consider before sometimes a radio IP camera is the pan and tilt range.
Needless to say, this feature will rely upon the environment where you want to use the camera.
A wide pan and tilt range is never an awful thing.
Thirdly, zooming capability of the cordless IP camera is also essential.
Ensure that you check the kind of zooming functionality, whether its optical or digital.
Most of the IP cameras on the market are digital, but you will never fail to find one with optical zoom.
Fourth, test the equipment before purchase.
That is vital, especially when you are buying from your neighborhood electronic store.
Always obtain a test set up as this will enable you to determine the picture quality of the camera.
Furthermore, it will give you an chance to learn how to set up the equipment in an effective manner to ensure that you get the best image and music quality.
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