![]() For a PoE switch, only one power cable for the switch and one network cable to connect PDs are required. However, for a gigabit PoE switch application, things will become easier. This injector or other midspan PSEs can add electrical power while receiving data signals from the cable connected with the non-PoE switch, and then deliver both data and power to PDs (Learn more about PoE injector from What Is a PoE Injector And How to Use It?) In this application, the injector or other midspan PSEs will also need a wire for power. To acquire PoE, users have to deploy a midspan power sourcing equipment (PSE) like the PoE injector between the switch and PDs. ![]() As the most basic switch, the non-PoE switch refers to the switch that is not PoE enabled to supply power for end-users over Ethernet, but can only send data to network devices. The reason why you need power over Ethernet switches will be obvious when comparing PoE switch vs non-PoE switch.
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