Invention Grant
- Patent Title: Cable tester
- Patent Title (中): 电缆测试仪
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Application No.: US12082964Application Date: 2008-04-15
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Publication No.: US07884615B1Publication Date: 2011-02-08
- Inventor: William Lo , Yiqing Guo , Tek Tsui , Tsin-Ho Leung , Runsheng He , Eric Janofsky
- Applicant: William Lo , Yiqing Guo , Tek Tsui , Tsin-Ho Leung , Runsheng He , Eric Janofsky
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: G01R31/11
- IPC: G01R31/11

Abstract:
A network interface includes a physical layer (PHY) device that provides an interface to a cable. The PHY device includes an autonegotiation module that selectively performs autonegotiation to establish a link with a link partner based on link parameters and a cable test module that performs a cable test before the autonegotiation begins, that determines a cable performance parameter during the cable test, and that compares the cable performance parameter to a predetermined threshold. The autonegotiation module selects at least one of the link parameters based on the comparison.
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