Protection switch architecture for digital cross-connect system
US6538869B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2000 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Apr 22, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5627
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A protection switch architecture is disclosed for a digital cross-connect system having a main controller, a command interface, and at least one digital signal processing unit. The digital signal processing unit includes one or more signal processing service devices and one or more signal processing protection devices that correspond to the service devices. A unit controller includes the protection switch for switching signal processing responsibilities between the service devices and the protection devices. Advantageously, the protection switch is adapted to act independently of the main controller in reponse to autonomous switching requests from the service devices by completing all protection switching related to such protection requests without main controller involvement. The protection switch also acts in response to manual switching requests from the main controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.