The PoE connection in lighting

The PoE connection can become a viable alternative to conventional power lines to connect lighting applications to the Internet and distribute electricity. 
The biggest advantage of lighting over Ethernet is that it is very easy and cheap to perform simultaneous data transmission and serves as a power source.

The local and autonomous power supply of a device is often problematic when said element is intended to be installed in places that are not easily accessible or without power; Such is the case of IP surveillance cameras. Installing power near these elements can sometimes be very difficult and expensive.

With the PoE (Power over Ethernet) connections, the household lighting system would change radically since it would only be necessary to pull UTP cable from the port of a PoE connection to the group of LED lights to be powered and controlled by an IP.
Thus, LED lights with PoE do not need dimmers, regulation ballasts, etc. 
It allows the power supply to be supplied to a network device (switch, access point, router, telephone or IP camera, etc.) using the same cable used for the network connection. It eliminates the need to use power outlets in the locations of the powered device and allows a simpler application of uninterruptible power supplies.

PoE connection: All Advantages

Installation costs and service costs are reduced considerably.
With the software applications work processes are optimized and comfort in use increases.
Advantages in the phases of construction and use of buildings.
It allows advanced lighting control. Instead of just turning the lights on and off, we can adjust parameters such as color, intensity or temperature.
The sensors in the luminaires may collect useful information for the management of energy-efficient buildings. It is a great opportunity for building automation.
With lighting via Ethernet (PoE), power and data are received through a single standard Ethernet cable, eliminating the need for additional wiring. In this way, the LED lights are integrated into an interconnected lighting system.

How does it work?

There are two main types of devices that are used in a PoE installation: the power supply equipment (PSE) and the powered device (PD). The PSE supplies the power and the PD accepts it.
The electricity supplied to the wiring can be done through LAN / WAN switches that incorporate circuits for supply.
poe connection

The Endspan and the Midspan. the Endspans are devices such as routers or Ethernet switches that include both electronic data transmission as hardware capable of performing the function of PoE PSE. Its use is normally focused on new installations or when the switch is replaced by a new one and there is an opportunity to add PoE (Power Over Ethernet). 
The Midspans are devices that are power injectors that are located between a conventional Ethernet switch - no PoE - and hanging devices.

Undoubtedly, the PoE connection in the LED lighting is going to have to talk because it will mean a great saving in time costs in the installation of power supply wiring. Network cables do not require a qualified electrician to adapt to them, and they can be located anywhere. It will provide flexibility because we will not have to be tied to a power outlet and devices such as IP cameras and wireless access points may be located where they are most needed.

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