Cable tester
US8829917B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2012 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Jul 28, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A physical layer device configured to interface with a plurality of pairs of wires. The physical layer device includes a cable test module configured to transmit a pulse over the plurality of pairs of wires, measure a reflection of the pulse as received from the plurality of pairs of wires, and determine whether a short circuit exists in one of the plurality of pairs of wires based on the measure of the reflection of the pulse. An autonegotiation module is configured to perform autonegotiation to establish a link at a particular speed over the plurality of pairs of wires. The particular speed at which the link is established over the plurality of pairs of wires is based, at least in part, on whether a short circuit exists in one of the plurality of pairs of wires as determined by the cable test module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.