Cable tester

Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element

Reexamination Certificate

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C324S543000

Reexamination Certificate

active

06982557

ABSTRACT:
A physical layer device according to some implementations includes a cable tester that generates a test pulse on a cable and that determines a cable status including an open status, a short status, and a normal status. A cable impedance estimator communicates with the cable tester and estimates an impedance of the cable based on a reflection amplitude of the test pulse.

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patent: WO 01/11861 (2001-02-01), None
IEEE std. 802.3 IEEE Standard for Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements; Part 3: Carrier sense multiple access with collison detection (CSMA/DC) access method and physical layer specifications, 2002, pp. 1-173.
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Intel, “LXT9784 Octal 10/100 Transceiver Hardware Integrity Function Overview”, Jan. 2001, pp. 1-14.

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