Protection switching apparatus and method
US5408462A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 7, 1993 |
| Grant date | Apr 18, 1995 |
| Priority date | — |
| Expiry date | Oct 7, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/74
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A protection switching system is disclosed which includes a plurality of telecommunications modules for processing and/or switching telecommunications signals. A first module provides signals to one pair of modules, which are in turn connected to another pair of modules. Each pair of modules includes a working and a standby module. The standby module controls the switching of all the modules in the system which require switching in the event that the standby module is activated. A controller monitor circuit monitors the faults present on the working modules and, if a fault is detected, signals the corresponding standby module, which in turn provides the protection switching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.