PoE doesn't carry through additional switches/hubs, it will only be supplied to devices that are directly connected to a PoE switch (and only by request). If you have a PoE switch, and want to pass PoE to cliend devices, you should not use non- PoE switches in. Generally, no. What Are Non-PoE Devices? Devices that are not PoE (Power over Ethernet) do not draw power from network lines. They instead depend on AC or DC power sources. Is it safe to do this? Do i need to change any settings? Archived post. PoE devices are network equipment that can send out or receive the PoE power along with data, such as PoE switches, IP cameras, wireless access points, while non-PoE devices can only. And what happens if you accidentally plug in a normal (non-PoE) device into a PoE switch? I explore all this – and more – in this video. including via a VERY suspect looking demo! I combined TWO power over Ethernet switches with three non-PoE devices (a HP printer, DVD player and TP-Link Gigabit. In network deployments, PoE technology is widely used due to its advantages of simplified cabling and reduced costs. However, the coexistence of old and new devices and different standards is common. In this article, we will answer this common question and delve into the safety and application practices of PoE technology.