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Power management for serial-powered device connections

An electrical equipment and equipment technology, applied in electrical digital data processing, data processing power supply, data switching current source, etc., can solve problems such as being unsuitable for receiving or utilizing in-line power, etc.

Active Publication Date: 2007-08-15
CISCO TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0031] Therefore, the discovery process is used to avoid supplying inline power (at full -48VDC) to so-called "legacy" devices, which are not particularly suitable for receiving or utilizing inline power

Method used

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  • Power management for serial-powered device connections
  • Power management for serial-powered device connections
  • Power management for serial-powered device connections

Examples

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Embodiment Construction

[0046] Embodiments of the invention described in the following detailed description relate to power management for sequentially powered device connections. Those skilled in the art will appreciate that the detailed description is exemplary only and is not intended to limit the scope of the invention in any way. Other embodiments of the invention beyond those described in the Detailed Description will become readily apparent to those skilled in the art having the benefit of this disclosure. Reference will now be made in detail to implementations of the invention which are illustrated in the accompanying drawings. Where appropriate, the same reference numbers will be used throughout the drawings and detailed description to refer to the same or like parts.

[0047] In the interest of clarity, not all of the routine features of the above implementations have been shown and described. Of course, it should be appreciated that in the development of any such actual implementation, i...

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Abstract

A method and apparatus for managing an Inline Power relationship between and among a first network device acting as power sourcing equipment (PSE) to provide Inline Power to a second Powered Device (PD) and a third device. In one aspect of the invention, the powered device(s) and the third device are powered (at least in part) by the PSE using inline power from at least one port (which may include more than one PSE) and they are powered over one or more sets of cables.

Description

[0001] Statement of relevant cases [0002] This patent may be considered to be co-owned with U.S. Patent Application No. 10 / 961,864, filed October 7, 2004, entitled "Bidirectional Inline Power Port," inventors Danicl Biederman, Kenneth Coley, and Frederick R. Schindler (Attorney Docket No. .CISCO-8799) related. [0003] This patent may also be considered to be co-owned with commonly-owned U.S. Patent Application No. 10, filed October 7, 2004, entitled "Redundant Power and Data Over A Wired Data Telecommunications Network" as inventors Daniel Biederman, Kenneth Coley, and Frederick R. Schindler / 961,243 (Attorney Docket No. CISCO-8800) related. [0004] This patent may also be considered to be jointly owned with Roger A. Karam, Frederick R. Schindler, and Wael William Diab, entitled "Inline Power-Based Common Mode Communications in a Wired Data Telecommunications Network," filed October 7, 2004 as inventors Related to U.S. Patent Application No. 10 / 961,904 (Attorney Docket No....

Claims

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Application Information

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IPC IPC(8): G06F1/26
CPCH04L12/10G06F1/26G06F1/3228G06F1/28H04L12/44
Inventor 罗杰·A·卡尔阿姆
Owner CISCO TECH INC
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