Digital remote switching unit
US4509168A · kind A · utility
3Cited by
3References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1983 |
| Grant date | Apr 2, 1985 |
| Priority date | — |
| Expiry date | Nov 3, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A remote switching unit which serves a large digital switching system is shown. The remote switching unit is CPU controlled and interconnects local subscribers to the large switching system. Digital spans connect the remote switching unit to the large switching system. A space switching stage provides for switching local traffic (traffic with the remote switching unit) and remote traffic (traffic from or to the large switching system). In addition, the remote switching unit provides an extended switching capacity with connections to smaller switching units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.