System and method for preventing phantom data communication links
US7106688B2 · kind B2 · utility
2Cited by
10References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2003 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Jun 25, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/306
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A data communication system is provided that comprises a head-end switching system which comprises a plurality of communication ports. A port controller causes the ports to sequentially issue inquiry signals to network termination points. This sequential processing of inquiry signals prevents the formation of phantom links that may occur if physical conductors which are susceptible to crosstalk interference with connected conductors erroneously convey a response signal back to an unattached port within the head-in switching system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.