Power over Ethernet

Power over Ethernet
Power over Ethernet (Power over Ethernet, PoE) is a technology that incorporates power into a standard LAN infrastructure. It allows power to be supplied to a network device (switch, access point, router, telephone or IP camera, etc.) using the same cable that is used for the network connection. Eliminates the need for power outlets at powered device locations and allows for easier application of Uninterruptible Power Supplies (UPS) to ensure 24/7 operation.

Power over Ethernet is regulated by a standard called IEEE 802.3af, and is designed in a way that does not decrease the communication performance of data on the network or reduce the range of the network. The power supplied through the LAN infrastructure is automatically activated when a compatible terminal is identified and blocked against pre-existing devices that are not compatible. This feature allows users to freely and securely mix pre-existing devices on the network with PoE-compatible devices.

Currently there are several network devices on the market such as switches or hubs that support this technology. To implement PoE in a network that does not have devices that directly support it, a base unit (with RJ45 input and output connectors) with a power adapter to collect electricity and a terminal unit (also with RJ45 connectors) are used. with a power cable so that the final device gets the necessary energy for its operation.