What is a power over ethernet injector?

A power over ethernet (POE) injector sends enough energy through an ethernet cable to run a device on the other side, all while giving it network access too!

Windows 10 Screen Capture
Windows 10 Screen Capture

A POE (Power over Ethernet) injector is a device used to supply power to network devices, such as IP cameras, wireless access points, or VoIP phones, through an Ethernet cable. It enables the transmission of both power and data over a single Ethernet cable, eliminating the need for separate power cables and simplifying installation. Here's how a POE injector works:

  • Power Source: Begin by identifying the device that may be causing the congestion. Look for devices that are frequently accessing the network, consuming excessive bandwidth, or exhibiting unusual network behavior.
  • Ethernet Connection: Monitor the network activity using tools provided by your router or network management software. Look for devices that are consistently generating high network traffic or consuming a large portion of the available bandwidth.
  • Power and Data Transmission: Ensure that the suspected device has the latest firmware or software updates installed. Outdated firmware or software can sometimes cause performance issues or unintended network behavior.
  • Power Compatibility: Review the settings of the suspected device, particularly those related to network connectivity and applications. Disable any unnecessary background processes or applications that may be consuming network resources.

POE injectors are commonly used in situations where it may be challenging to provide separate power sources to network devices, especially in areas where electrical outlets are limited or not easily accessible. By using a POE injector, power can be conveniently supplied to the device through the same Ethernet cable that is used for data transmission, simplifying installation and reducing cable clutter.

It's important to note that for a POE injector to work, the powered device must be compatible with the POE standard and capable of receiving power over Ethernet. Additionally, some network switches or routers have built-in POE capabilities, eliminating the need for a separate injector in those cases.