Back to results
US 11,467,643 B2Granted
Power over ethernet system
AssigneeIgor, Inc.
InventorDwight Lynch Stewart
Life of this patent
Estimating the term…
Abstract
Disclosed are systems that may include nodes configured to receive power and data from a cable, for example, an Ethernet cable. In example embodiments, the nodes include a plurality of contacts for delivering data and power to a downstream node. In example embodiments a single pair of contacts may be used to deliver data to the downstream node and three pairs of contacts may be used to deliver power to the downstream node.
Claims11
A system comprising:
- an upstream device having a microprocessor, a high voltage supply, a low voltage supply lower than the high voltage supply, a differential line driver and receiver, a detection circuit, and a first port having four pairs of contacts;
- a switch controlled by the microprocessor of the upstream device;
- a downstream device having high voltage circuits configured operate at a high voltage, low voltage circuits configured to operate at a voltage lower than the high voltage, a differential line driver and receiver, and a second port having four pairs of contacts;
- and
- a cable connecting the first port to the second port thereby connecting the upstream device to the downstream device, wherein the cable includes at least two pairs of wires connecting at least two pairs of contacts of the upstream device to at least two pairs of contacts of the downstream device to provide high voltage to the downstream device, wherein the microprocessor of the upstream device opens the switch when a monitored voltage reduces.
2 more elements
Dependencies are inferred from the claim text.