Description of Power Over Ethernet (PoE) Controllers

Power over Ethernet (PoE) controllers let designers send both electrical current and data through a single Ethernet connection. This means remote devices get their power through Ethernet cables, so there’s no need for batteries, local power adapters, or extra power cables. There are two types of PoE controllers: bridge rectifier and N+1 O-Ring. They might come with features like N and P-channel FETs, internal switches, and automotive certification.

Frequently Asked Questions

What is Power over Ethernet (PoE)?

Power over Ethernet (PoE) is a technology that allows electrical current needed to power devices to be transmitted through Ethernet data cables instead of using separate electrical power cords and wiring. It's used in wired Ethernet local area networks (LANs).

What is a PoE controller?

A Power over Ethernet (PoE) controller enables designers to send both electrical current and data over a single Ethernet connection. This means remote devices can be powered through Ethernet cables, removing the need for batteries, local power adapters, and extra power cabling.

What is PoE used for?

Power over Ethernet (PoE) is used to deliver DC power to devices through copper Ethernet cables, which removes the need for separate power supplies and outlets. While it doesn't add to Ethernet data capabilities, it provides more flexibility in where and how Ethernet devices can be placed.

Is PoE better than Ethernet?

Power over Ethernet (PoE) is a smart choice for IT setups. Whether you’re installing a cloud phone system or wiring up a bunch of security cameras, PoE can save your business time and money. It also makes your IP network more flexible, simplifies logistical issues, and cuts down on installation times.

What happens if you plug PoE into a non-PoE device?

A PoE switch can automatically detect if a device needs power, whether it's a PoE device or not. So, PoE won’t disrupt the normal operation of the switch. You can mix PoE and non-PoE devices on the same switch without any issues.