公开(公告)号：US20210167814A1

公开(公告)日：2021-06-03

申请号：US17171785

申请日：2021-02-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Douglas Paul Arduini ,  Sung Kee Baek ,  Richard Anthony O'Brien ,  Joel Richard Goergen ,  Chad M. Jones ,  Jason DeWayne Potterf ,  Ruqi Li

IPC: H04B3/54 ,  G01R31/08 ,  H04L12/10 ,  G05B9/02 ,  H02J13/00 ,  G06F1/30 ,  G01R31/50

Abstract: In one embodiment, a method includes identifying at a first powered device in communication with power sourcing equipment, a second powered device in communication with the first powered device, wherein the first powered device is receiving high voltage pulse power from the power sourcing equipment, notifying the power sourcing equipment of the second powered device at the first powered device, and performing a low voltage power initialization at the first powered device with the second powered device before passing the high voltage pulse power to the second powered device.

公开(公告)号：US20210135890A1

公开(公告)日：2021-05-06

申请号：US16671508

申请日：2019-11-01

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Douglas Paul Arduini ,  Sung Kee Baek ,  Richard Anthony O'Brien ,  Joel Richard Goergen ,  Chad M. Jones ,  Jason DeWayne Potterf ,  Ruqi Li

IPC: H04L12/10 ,  H02J13/00 ,  G05B9/02 ,  G01R31/08 ,  G01R31/02

Abstract: In one embodiment, a method includes transmitting from power sourcing equipment, low voltage pulse power to a powered device in a communications network, performing a safety test, enabling high voltage pulse power operation at the power sourcing equipment upon passing the safety test, and transmitting high voltage pulse power from the power sourcing equipment to the powered device. The powered device synchronizes with a waveform of the low voltage pulse power.

公开(公告)号：US20200295955A1

公开(公告)日：2020-09-17

申请号：US16380954

申请日：2019-04-10

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Richard Anthony O'Brien ,  Douglas Paul Arduini ,  Sung Kee Baek ,  Ruqi Li ,  Joel Richard Goergen

IPC: H04L12/10 ,  H04L12/24 ,  G01R31/08

Abstract: In one embodiment, an apparatus comprises an input power interface for receiving input power, a power control system for transmitting DC (Direct Current) pulse power on multiple phases over a cable to a plurality of powered devices and verifying cable operation during an off-time of pulses in the DC pulse power, and a cable interface for delivery of the DC pulse power on the multiple phases and data over the cable to the powered devices. A method for transmitting multiple phase pulse power is also disclosed herein.