Power over ethernet to USB adapter
A power adapter comprising a POE connector for receiving electrical power from the power lines of a POE cable, a transformer circuit and a USB connector for delivering electrical power to a USB powered device, wherein a POE cable provides power to the USB powered device. The power adapter can have a POE receptacle for receiving an Ethernet plug, to receive the POE power, and a USB receptacle to receive a USB plug from a USB powered device, or dedicated wires from one or more of the POE power supply and/or the USB powered device. Also, a method for providing USB power comprising the steps of running a POE cable from a power source to an adapter, adapting the POE power from the POE cable to USB power and making the USB power available to one or more USB powered devices.
1. A power adapter for delivering electrical power from a POE cable having power lines and data lines to a USB powered device, the power adapter comprising a POE connector for receiving electrical power from the power lines and data lines of the POE cable, a transformer circuit, a USB connector, and a termination point in the data lines of the POE cable prior to the data lines reaching the USB connector, leaving only the power lines of the POE cable to connect with and provide power to the USB powered device.
2. The power adapter of claim 1 wherein the POE connector is taken from the group consisting of an Ethernet receptacle, spring contacts, screw down contacts, push-in contacts and stripped wires.
3. The power adapter of claim 2 wherein the POE connector is an Ethernet receptacle.
4. The power adapter of claim 1 wherein the USB connector is taken from the group consisting of USB Type A, USB Type B, USB Mini-A, USB Mini-B, USB Micro-A, USB Micro-B, Apple dock connector, spring contacts, screw down contacts, push-in contacts and stripped wires.
5. The power adapter of claim 4 wherein the USB connector is a USB Type A receptacle.
6. The power adapter of claim 1 wherein one or more USB connectors are associated with a single POE cable.
7. The power adapter of claim 1 wherein the power adapter is a self-contained device in a case.
8. The power adapter of claim 1 further comprising a mounting element for mounting the power adapter in an AC electrical box.
9. The power adapter of claim 1 for mounting in an AC electrical box wherein the POE connector is positioned to accept a POE cable internal to the AC electrical box and the USB connector is positioned to be accessed external to the AC electrical box.
10. The power adapter of claim 1 wherein the termination point is within the transformer circuit.