Network system having a line switching function
US5193086A · kind A · utility
31Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1991 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Oct 21, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q3/0016
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A network system includes a plurality of nodes connected to each other via line switching units through communication lines and backup lines and a network control unit connected to the line switching units. At an occurrence of a communication line failure, the network control unit supplies the line switching units with a line switching instruction to change over from the failed line to backup lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.