Bidirectional inline power port
First Claim
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1. An apparatus comprising:
- a network port;
power supply circuitry constructed and arranged to provide power to remote devices;
power receiving circuitry constructed and arranged to receive power from a remote device;
a battery configured to provide power to the power supply circuitry and receive power from the power receiving circuitry; and
a controller configured to selectively couple the power supply circuitry and power receiving circuitry to the networking port based on a mode of operation, wherein;
in a first mode of operation, the controller is configured to simultaneously couple the power supply circuitry to the network port and decouple the power receiving circuitry from the network port, wherein;
coupling the power supply circuitry to the network port includes closing a first electrical switch from an open state between the power supply circuitry and the network port; and
decoupling the power receiving circuitry from the network port includes opening a second electrical switch from a closed state between the power receiving circuitry and the network port;
in a second mode of operation, the controller is configured to simultaneously couple the power receiving circuitry to the network port and decouple the power supply circuitry from the network port, wherein;
coupling the power receiving circuitry to the network port includes closing the second electrical switch from an open state between the power receiving circuitry and the network port; and
decoupling the power supply circuitry from the network port includes opening the first electrical switch from a closed state between the power supply circuitry and the network port; and
the controller is configured to select between the first mode of operation and the second mode of operation by;
selecting the first mode of operation when the network port is connected to a remote network device that requests remote power and the battery is in a charged state; and
selecting the second mode of operation when the network port is connected to a remote network device that provides remote power and the battery is in an uncharged state.
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Abstract
A method and apparatus for bidirectional provision of inline power over data telecommunications cabling permits power to be received at a local powered device (PD) from remote power sourcing equipment (PSE) via at least one conductor at a first time and power to be provided by the local device to a remote device or another device at a second different time.
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Citations
14 Claims
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1. An apparatus comprising:
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a network port; power supply circuitry constructed and arranged to provide power to remote devices; power receiving circuitry constructed and arranged to receive power from a remote device; a battery configured to provide power to the power supply circuitry and receive power from the power receiving circuitry; and a controller configured to selectively couple the power supply circuitry and power receiving circuitry to the networking port based on a mode of operation, wherein; in a first mode of operation, the controller is configured to simultaneously couple the power supply circuitry to the network port and decouple the power receiving circuitry from the network port, wherein; coupling the power supply circuitry to the network port includes closing a first electrical switch from an open state between the power supply circuitry and the network port; and decoupling the power receiving circuitry from the network port includes opening a second electrical switch from a closed state between the power receiving circuitry and the network port; in a second mode of operation, the controller is configured to simultaneously couple the power receiving circuitry to the network port and decouple the power supply circuitry from the network port, wherein; coupling the power receiving circuitry to the network port includes closing the second electrical switch from an open state between the power receiving circuitry and the network port; and decoupling the power supply circuitry from the network port includes opening the first electrical switch from a closed state between the power supply circuitry and the network port; and the controller is configured to select between the first mode of operation and the second mode of operation by; selecting the first mode of operation when the network port is connected to a remote network device that requests remote power and the battery is in a charged state; and selecting the second mode of operation when the network port is connected to a remote network device that provides remote power and the battery is in an uncharged state. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method performed by a network device, the network device including a network port, power supply circuitry, power receiving circuitry, a battery configured to provide power to the power supply circuitry and receive power from the power receiving circuitry, and a controller, the method comprising:
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choosing, at the controller, which of a plurality of modes of operation the network device should operate in, wherein choosing includes; selecting a first mode of operation when the network port of the network device is connected to a remote network device that requests remote power and the battery is in a charged state; and selecting a second mode of operation when the network port is connected to a remote network device that provides remote power and the battery is in an uncharged state; and selectively coupling the power supply circuitry of the network device and the power receiving circuitry of the network device to the network port of the network device based on the chosen mode of operation, wherein selectively coupling includes; in the first mode of operation, simultaneously coupling the power supply circuitry to the network port and decoupling the power receiving circuitry from the network port, wherein; coupling the power supply circuitry to the network port includes closing a first electrical switch from an open state between the power supply circuitry and the network port; and decoupling the power receiving circuitry from the network port includes opening a second electrical switch from a closed state between the power receiving circuitry and the network port; and in the second mode of operation simultaneously coupling the power receiving circuitry to the network port and decoupling the power supply circuitry from the network port, wherein; coupling the power receiving circuitry to the network port includes closing the second electrical switch from an open state between the power receiving circuitry and the network port; and decoupling the power supply circuitry from the network port includes opening the first electrical switch from a closed state between the power supply circuitry and the network port. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification