Power status telemetry for powered devices in a system with power over ethernet
AssigneeMaxim Integrated Products, Inc.
InventorsGaoling Zou, Alberto Viviani, Yangyang Wen, Qicheng Huang
Life of this patent
Estimating the term…
Abstract
A powered device interface assembly includes an optocoupler and a powered device interface. The opto-coupler is electrically coupled with a microcontroller of the power device interface. The powered device interface includes a telemetry circuit coupled with the opto-coupler and configured to generate encoded telemetry information for output via a single pin of the powered device interface for transmission to the microcontroller of the powered device, wherein the opto-coupler is coupled with the single pin and is configured to electrically isolate the single pin from the microcontroller.
Claims20
A powered device interface assembly for a powered device in a system employing power over ethernet, the powered device interface comprising:
- an opto-coupler electrically coupled with a microcontroller of the powered device interface;
- and
- a telemetry circuit coupled with the opto-coupler and configured to generate encoded telemetry information for output via a single pin of the powered device interface for transmission to the microcontroller of the powered device, wherein the opto-coupler is coupled with the single pin and is configured to electrically isolate the single pin from the microcontroller.
A powered device in a system employing power over ethernet, the powered device comprising:
- a powered device interface including a telemetry circuit configured to generate encoded telemetry information for output via a single pin of the powered device interface;
- a microcontroller coupled with the powered device interface;
- and
- an opto-coupler coupled with the single pin, the opto-coupler configured to electrically isolate the single pin from the microcontroller.
A method for providing telemetry information from a powered device interface of a powered device in a system employing power over ethernet, the method comprising:
- generating encoded telemetry information of the powered device via the powered device interface;
- outputting the encoded telemetry information via a single pin of the powered device interface;
- and
- transmitting the encoded telemetry information to a microcontroller of the powered device via the single pin.
Dependencies are inferred from the claim text.