US 12,395,365 B2
Bi-directional power over ethernet for digital building applications
Joel Richard Goergen, Soulsbyville, CA (US); Chad M. Jones, Doylestown, OH (US); and Charles Lacey Compton, III, Palo Alto, CA (US)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Oct. 18, 2023, as Appl. No. 18/489,319.
Application 18/489,319 is a continuation of application No. 18/063,988, filed on Dec. 9, 2022, granted, now 11,831,450.
Application 18/063,988 is a continuation of application No. 17/068,115, filed on Oct. 12, 2020, granted, now 11,582,048, issued on Feb. 14, 2023.
Claims priority of provisional application 63/070,110, filed on Aug. 25, 2020.
Claims priority of provisional application 63/053,500, filed on Jul. 17, 2020.
Prior Publication US 2024/0073046 A1, Feb. 29, 2024
Int. Cl. G06F 1/26 (2006.01); G06F 1/28 (2006.01); G06F 1/30 (2006.01); G06F 1/3212 (2019.01); H04L 12/10 (2006.01); H04L 12/40 (2006.01)
CPC H04L 12/10 (2013.01) [G06F 1/266 (2013.01); G06F 1/28 (2013.01); G06F 1/30 (2013.01); G06F 1/3212 (2013.01); H04L 12/40045 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a plurality of network devices comprising a plurality of ports;
a power bus connecting said plurality of network devices; and
a controller for identifying an available power and allocating the available power to said plurality of ports;
wherein said plurality of ports comprises:
a plurality of PSE (Power Sourcing Equipment) fault management power (FMP) ports, each operable to transmit the available power to a first device connected to one of the PSE FMP ports;
a plurality of PD (Powered Device) FMP ports each operable to receive the available power from a second device connected to one of the PD FMP ports; and
a plurality of bi-directional FMP ports each configurable to operate as a PSE FMP port to transmit the available power to a third device connected to one of the bi-directional FMP ports or as a PD FMP port to receive the available power from the third device,
wherein the FMP includes a fault detection between pulses of the available power.