Power over ethernet controller suitable for multiple modes

Details Power over ethernet controller suitable for multiple modes Power over ethernet controller suitable for multiple modes

2006-07-27

2008-11-11

Sherry, Michael J (Department: 2836)

Electrical transmission or interconnection systems

Superimposed unlike currents

C307S018000, C307S023000, C307S029000, C307S080000, C307S085000

Reexamination Certificate

active

07449796

ABSTRACT:
A power over Ethernet controller supporting a plurality of powering modes, the power over Ethernet controller comprising: a pair of power sourcing equipments; and a control circuit; the control circuit being operative to control each of the pair of power sourcing equipment units in one of a first mode and a second mode, the first mode comprising operating the pair of power sourcing equipments as a single power sourcing equipment operable to power a single powered device over communication cabling, and the second mode comprising operating each of the power sourcing equipments of the pair independently so as to each be operable to power an associated powered device over communication cabling.

REFERENCES:
patent: 6157089 (2000-12-01), Xu
patent: 6473608 (2002-10-01), Lehr et al.
patent: 6643566 (2003-11-01), Lehr et al.
patent: 6665404 (2003-12-01), Cohen
patent: 6879060 (2005-04-01), Hohri
patent: 7061142 (2006-06-01), Marshall
patent: 2004/0201931 (2004-10-01), Korcharz et al.

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