Invention Application
- Patent Title: MEASURING CABLE RESISTANCE IN SYSTEM FOR PROVIDING POWER OVER COMMUNICATION CABLE
- Patent Title (中): 测量通信电缆供电系统中的电缆电阻
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Application No.: US12527079Application Date: 2007-10-23
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Publication No.: US20100141282A1Publication Date: 2010-06-10
- Inventor: Jeffrey Lynn Heath , John Arthur Stineman, JR. , Steve Robbins
- Applicant: Jeffrey Lynn Heath , John Arthur Stineman, JR. , Steve Robbins
- International Application: PCT/US07/22430 WO 20071023
- Main IPC: G01R27/08
- IPC: G01R27/08
Abstract:
A system for providing power to a powered device over a communication cable has a cable resistance measuring mechanism that determines values of response signals detected in response to supplying each of at least three reference signals over the communication cable, and determines the resistance of a pair of wires in the cable based on these values. The cable resistance measuring mechanism may be configured for determining resistance of an Ethernet cable that delivers power to the powered device in a Power over Ethernet system.
Public/Granted literature
- US08552749B2 Measuring cable resistance in system for providing power over communication cable Public/Granted day:2013-10-08
Information query
