You can get a single one for under $100 or a hub (multi port PoE injector) for $800 If you already have good switches that would be a good way to go. Otherwise a switch with real 802.3bt support ...

I'm just not sure if a POE+ switch can be set to output less power to comply with the POE standard. So I do not even have to define the switch port ... 802.3af in addition to PoE+ (802.3at ...

Power over Ethernet LAN switches have accelerated ... For example, the IEEE 802.3af standard allows a maximum of 15.4 Watts of power to be delivered, corresponding to Cat. 3, Cat. 5 or higher cables.

Another option is to use a PoE injector, which works with non-PoE switches to ... In 2009, the IEEE 802.3 working group released the second PoE standard, IEEE 802.3at. This added a power class ...

As you can see in the screen shot, ports 1, 2, 7 and 8 are PoE Disabled, while port 4 ... switch. It handles multiple speed traffic and PoE functions without missing a beat. The proper support for ...

Linear Technology Corporation introduces the LTC4265, an 802.3af/802.3at compliant Power over Ethernet (PoE) interface controller for high-power Powered Device (PD) applications Linear Technology ...

Thanks to its 802.3at compliance, the PoE port provides up to 30 W, guaranteeing the ability to easily power any high-power device. Potential applications include VoIP phones, surveillance cameras ...

The only catch is that for the Type 3 and 4 PoE standards ... IEEE PoE standard (802.3af-2003, now rebranded as Type 1) specifies how to deliver up to 15.4W of DC power per switch port to each ...