CyberData 011124 - PoE Power Injector 802.3at 

The PoE Power Injector 802.3at is used with CyberData's SIP Paging Amplifier (Part #011324), InformaCast® Enabled Paging Amplifier (Part #011403), SIP Loudspeaker Amplifier (PoE) (Part #011405), and InformaCast® Enabled Loudspeaker Amplifier (PoE) (Part #011407) to provide up to 25 watts of driving power.

The Power Injector 802.3at eliminates the need for a PoE enabled hub. In a typical installation, the Power Injector is connected between a non-PoE hub and a CyberData paging device, providing inline power capability to an Ethernet Cat 5 cable.