公开(公告)号：US20230188042A1

公开(公告)日：2023-06-15

申请号：US18166159

申请日：2023-02-08

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Richard Anthony O'Brien ,  Joel Richard Goergen ,  Chad M. Jones ,  Jason DeWayne Potterf ,  George Allan Zimmerman

IPC: H02M3/158 ,  H02J1/10 ,  G06F1/18

CPC classification number: H02M3/1584 ,  H02J1/106 ,  G06F1/18 ,  H02M3/1586

Abstract: In one embodiment, a method includes transmitting multi-phase pulse power from power sourcing equipment to a powered device in a data center, wherein the multi-phase pulse power comprises multiple phases of power delivered in a sequence of pulses defined by alternating low direct current voltage states and high direct current voltage states, and synchronizing the pulses at the power sourcing equipment with the pulses at the powered device.

公开(公告)号：US20230040178A1

公开(公告)日：2023-02-09

申请号：US17562444

申请日：2021-12-27

Applicant: Cisco Technology, Inc.

Inventor： Jason DeWayne Potterf ,  Chad M. Jones ,  Joel Richard Goergen

IPC: H02H7/26 ,  H04B3/54 ,  H04L12/10 ,  G06F1/26 ,  G01R31/52

Abstract: Presented herein are techniques for power fault management that operates without power-source-side switching. A power transmitter is configured to provide power to a current loop, and a power receiver is configured to receive the power from the current loop. The power receiver is configured to, on a periodic basis, disconnect from the current loop to stop pulling power from current loop for a period of time to enable a safety check to be performed by the power transmitter. The power transmitter is configured to monitor current on the current loop, determine whether the current level on the current loop passes the safety check within a predetermined time interval since a determination that the current level was not within a safe range, and control connectivity of the power to the current loop based on whether the safety check has or has not passed within the predetermined time interval.

公开(公告)号：US20220329327A1

公开(公告)日：2022-10-13

申请号：US17849236

申请日：2022-06-24

Applicant: Cisco Technology, Inc.

Inventor： Joel Richard Goergen ,  D. Brice Achkir ,  Chad M. Jones

IPC: H04B10/80 ,  H04L12/40 ,  H04L12/10 ,  H04L12/12 ,  H04M19/08 ,  G02B6/42 ,  H02J50/30 ,  H02J50/80

Abstract: An apparatus includes a connector for coupling a cable comprising at least one optical fiber and at least one electrical wire to an optical module at a network communications device, the connector comprising an electrical contact plate for engagement with an electrical contact on the optical module, and a ferrule for receiving the at least one optical fiber. The electrical contact plate is configured for electrically coupling the at least one electrical wire to the electrical contact on the optical module for delivery of power through the optical module.

公开(公告)号：US11327126B2

公开(公告)日：2022-05-10

申请号：US16876322

申请日：2020-05-18

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Joel Richard Goergen ,  Chad M. Jones

IPC: G08B21/00 ,  G01R31/67 ,  H04L12/10 ,  H04L12/40

Abstract: In one embodiment, an apparatus includes a cable for transmitting power and data from power sourcing equipment to a powered device in a Power over Ethernet (PoE) system, and plugs at each end of the cable, at least one of the plugs comprising at least one resistor, wherein power capacity of the cable is identified at the power sourcing equipment receiving one of the plugs based on the at least one resistor.

公开(公告)号：US11258520B2

公开(公告)日：2022-02-22

申请号：US16913792

申请日：2020-06-26

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Joel Richard Goergen ,  Chad M. Jones ,  Douglas Paul Arduini ,  Richard Anthony O'Brien ,  Daniel Lee Barsotti ,  Sung Kee Baek

IPC: H04B10/07 ,  H04B10/80 ,  H02H1/00 ,  H02J1/00 ,  H04B10/077

Abstract: In one embodiment, a method includes receiving at a remote network device, power and data from a central network device, wherein the power is used to power the remote network device, performing auto-negotiation with the central network device, wherein the auto-negotiation includes operating the remote network device in a low voltage mode during fault sensing of a power circuit at the remote network device, and selecting a power operating mode, wherein selecting the power operating mode includes selecting a high voltage mode if no fault is detected during the fault sensing, the high voltage mode comprising DC (direct current) pulse power. An apparatus is also disclosed herein.

公开(公告)号：US20210263545A1

公开(公告)日：2021-08-26

申请号：US17035527

申请日：2020-09-28

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Joel Richard Goergen ,  Chad M. Jones ,  Emanuele Umberto Giacometti

IPC: G05F1/577 ,  G06F21/44

Abstract: In one or more embodiments, a T-adapter includes an input for receiving power and data on a wire pair, a first output for transmitting the power and data to a first load, a second output for transmitting the power and data to a second load, and a controller operable to detect and authenticate the first load at the first output or the second load at the second output and enable power at the first output or the second output in response to load detection and authentication.

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：US20200328819A1

公开(公告)日：2020-10-15

申请号：US16913792

申请日：2020-06-26

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Joel Richard Goergen ,  Chad M. Jones ,  Douglas Paul Arduini ,  Richard Anthony O'Brien ,  Daniel Lee Barsotti ,  Sung Kee Baek

IPC: H04B10/80 ,  H02H1/00 ,  H02J1/00 ,  H04B10/077 ,  H04B10/07

Abstract: In one embodiment, a method includes receiving at a remote network device, power and data from a central network device, wherein the power is used to power the remote network device, performing auto-negotiation with the central network device, wherein the auto-negotiation includes operating the remote network device in a low voltage mode during fault sensing of a power circuit at the remote network device, and selecting a power operating mode, wherein selecting the power operating mode includes selecting a high voltage mode if no fault is detected during the fault sensing, the high voltage mode comprising DC (direct current) pulse power. An apparatus is also disclosed herein.

公开(公告)号：US10732688B2

公开(公告)日：2020-08-04

申请号：US16040745

申请日：2018-07-20

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Joel Richard Goergen ,  Chad M. Jones ,  Dylan T. Walker

IPC: G06F1/00 ,  G06F1/26 ,  H04L12/40 ,  H04L12/10

Abstract: In one embodiment, a method includes grouping a plurality of ports at power sourcing equipment in a Power over Ethernet (PoE) system, the ports receiving power from at least one power supply, and transmitting power from the group of ports at the power sourcing equipment to a plurality of ports at a power interface module. The power transmitted at each of the ports is at least 100 watts and the power interface module is operable to combine the power received at the ports and provide an AC outlet. An apparatus and system are also disclosed herein.