This system allows the necessary electrical power to be carried directly from the cable. Generally, it requires two connections to be made. Then only the connection to the network is needed to receive the data.




PoE (Power over Ethernet) is a technology that allows network cables to carry electrical power. It’s a technology for wired Ethernet LANs (local area networks), which 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 connecting to a LAN. PoE provides up to 15.4 watts of DC power on each port.

A digital IP Security Camera is an excellent example of how PoE works. It usually requires two connections to be made when it is installing. First, an IP security camera system requires a network connection 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 needed by the IP security cameras to operate. If the security camera system is compatible with PoE, only the network connection would need to make, as it will receive the electrical power from the ethernet cable.

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


The device that inserts power onto the Ethernet cable is called an “Ethernet injector.” An Ethernet injector pushes the electricity into the line from a switch on the LAN, 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 system, is attached to the LAN via an Ethernet cable, the switch automatically detects the power connection. If PoE is seeing, then power is sent. Conversely, if PoE is not detected, power is not sent. It’s important to know what voltage and current the device needs before using PoE.

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



Whether you’re setting up an IP phone system (VoIP), or wiring a PoE security camera system 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 and all about our cctv systems and security cameras installation. Learn more about how the PoE technology works in more detail, or see how we can help you make the most out of your PoE security camera system application. Our team of Security Advisors is experienced and can answer any questions you have about surveillance systems in MiamiContact us



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