Security Cameras Features - PoE

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poe security camera

game changer in the security camera surveillance market

PoE (Power over Ethernet) is a technology that allows network cables carry electrical power. It’s a technology for wired Ethernet LANs (local area networks) which also allows the electrical current necessary for the operation of each device to be carried by the data cables rather than by power cords. In other words, instead of using an adapter or outlet to power your device, PoE devices can receive electrical current directly from an Ethernet cable that is connected to a LAN. PoE provides up to 15.4 watts of DC power on each port.

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A digital IP Security Camera is a great example of how PoE works. It normally requires two connections to be made when it is installed. Firsts, an IP security camera system requires a network connection in order to be able to communicate with the NVR (network video recording device) and display monitor. And second, an IP security camera system requires a power connection to deliver the electrical power which is needed by the IP security cameras to operate. If the security camera system is compatible with PoE, only the network connection would need to be made, as it will receive the electrical power from the ethernet cable as well.

As a result, Power over Ethernet (PoE) minimizes the number of wires that must be strung in order to install an IP security camera system which lowers cost, less downtime, easier maintenance, and greater installation flexibility than with traditional wiring. Devices with PoE, such as IP security cameras, can therefore receive both power and data from a single Ethernet cable. Devices that do not have PoE only receive data from an Ethernet cable.

POE : How does it work?

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The device that inserts power onto the Ethernet cable is called an “Ethernet injector”. An Ethernet injector pushes the electricity into the cable from a switch on the LAN, which is picked up by the device at the other end and routed toward the device's power supply. When a PoE device, such as an IP or PoE security camera, is attached to the LAN via an Ethernet cable, the power connection is automatically detected by the switch. If PoE is detected, then power is sent. Conversely, if PoE is not detected, power is not sent. It’s important to know exactly what voltage and current the device needs before using PoE.

In other words, a PoE injector is used to add PoE capability to a non-PoE network links. Ethernet injectors can be used to upgrade existing LAN installations to PoE, and provide a versatile solution where fewer PoE ports are required. Its very simple to upgrade each network connection to PoE. Ethernet Injectors are available in multi-port rack-mounted units or low-cost single-port injectors.

poe camera : Benefits

    Cost-Efficiency: A PoE camera eliminates the cost AC wiring, outlets and cut costs on power consumption.

    Less Equipment: A PoE security camera use less power cords and less electrical outlets are needed to power all the system devices.

    Quick Deployment: A PoE camera simply requires plugging in networking cabling to the proper equipment in order to function correctly.

    Flexibility: powered devices can be deployed at nearly any location. Shielded cabling can be used for outdoor environments and industrial-grade powered PoE camera devices can be used for industrial environments.

    Safety: because a PoE security camera utilizes relatively low voltage, it presents low risks of electrical hazards.

    Reliable Power: A PoE camera power emanates from a single reliable source; this makes easier to manage all devices at once.

    Easy to Scale: the ease of adding and powering a PoE camera, other PoE devices, and networking equipment makes it easier to expand the network.


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PoE : compatible devices

Whether you're setting up a IP phone system (VoIP), or wiring a PoE security camera cluster, Power over Ethernet (PoE) can save your business time and money. PoE also adds flexibility to your business's IP network, simplifying logistical issues and decreasing installation times. Contact Dicsan Technology to find out about Power over Ethernet and PoE camera, to learn more about how the PoE technology works in more details, or simply to see how we can help you make the most out of your PoE security cameraapplication. Our team of Security Advisors are experience and can answer any questions you have. Contact us


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