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. It allows compatible devices, such as VoIP phones, network surveillance cameras or wireless access points to work in places where power outlets or network connections don't exist. not “passive” PoE) you'll be fine as the power only turns on after a handshake. PoE is a straightforward technology that transmits power and data via the same network cable to the powered devices. 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. possible duplicate of Can I connect a PC to a PoE switch?, Is it harmful to plug a POE energized data source into non-POE NIC card? No, you won't damage those devices. There are occasional posts to the contrary online but for the most part it seems that PoE is only activated after an initialization. Understanding the compatibility between PoE and non-PoE devices is essential for stable network operation. Core Concept Definitions Basic.
