Automatic system for power and data redundancy in a wired...

Details Automatic system for power and data redundancy in a wired... Automatic system for power and data redundancy in a wired...

2010-10-25

2011-10-18

Wilson, Yolanda L (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S004500, C370S228000

Reexamination Certificate

active

08042006

ABSTRACT:
Redundancy of data and/or Inline Power in a wired data telecommunications network from a pair of power sourcing equipment (PSE) devices via an automatic selection device is provided by providing redundant signaling to/from each of the pair of PSE devices, and coupling a port of one PSE device and a redundant port of the second PSE device to respective first and second interfaces of a port of the selection device. The selection device initially selects one of the two PSE devices and communicates data and/or Inline Power to a third interface of the selection device. A powered device (PD) coupled to that third interface communicates data and/or Inline Power with the selected one of the first and second PSE device through the selection device. Upon detection of a condition, such as a failure condition, the selection device may select the other of the two interfaces.

REFERENCES:
patent: 4739205 (1988-04-01), Fuhrman
patent: 5715293 (1998-02-01), Mahoney
patent: 7308612 (2007-12-01), Bishara

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