Since PoE has been standardized, protections for the overloading and underpowering of devices have been built into standards since the early days of 802.3af.

Running a small amount of power through your network cabling is surprisingly safe.

While PoE will likely provide faster network speeds than powerline Ethernet, it doesnвЂ™t deliver anywhere near as much power. PoE allows you to power lightweight devices using only the network cabling that you have available already. Powerline Ethernet allows you to lay down a wired network without having to put Ethernet cabling in the walls. While PoE uses network cabling and standard network connections to deliver power, Powerline Ethernet works somewhat in reverse, delivering networking over existing powerlines instead. PoE is entirely different from Powerline Ethernet. Is PoE Different from Powerline Ethernet? Power over Ethernet uses standard RJ45 network connections to deliver both power and networking to the same device. This standard also provides support for 10 gigabit wired networking. While both of these standards are still used (and sold) today, 802.3bt, or PoE++, can now deliver up to 51 watts DC (Type 3) or 71.4 watts DC (Type 4) to power a far wider range of devices using Cat 5 or better cabling. This was followed up with the 802.3at standard, also known as PoE+, which expanded available power to 25.5 watts total. The earliest standard was 802.3af, which provided 15.4 watts of DC power over standard Cat 3 and Cat 5 network cabling. Power over Ethernet is perfect for powering low-to-medium power devices like cameras, wireless access points, intercom systems, and keyless entry devices that can make use of both power and connectivity in a single cable. Just like with wireless networking, there are different standards for various PoE implementations, with newer standards providing more power for more demanding devices. Power over Ethernet, or PoE for short, is a method of providing both power and networking to a device via network cabling.

Ethernet icon instead of wireless