Cable tester
US7906973B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 25, 2006 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Oct 20, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A physical layer module (PHY) of a network device includes a control module and a cable-test module. The control module selectively generates a cable-test enable signal to test a cable including four pairs of twisted wire. The cable-test module tests the cable based on the cable-test enable signal. The cable-test module transmits test signals on the four pairs at a first time and receives return signals. The cable-test module determines that the cable is not faulty when the return signals received on first and second pairs of the four pairs have an amplitude less than a first predetermined amplitude, and when the return signals received on third and fourth pairs of the four pairs have an amplitude greater than a second predetermined amplitude and are received substantially contemporaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.