Dual span monitoring system for maintenance shelf control
US5509065A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1993 |
| Grant date | Apr 16, 1996 |
| Priority date | — |
| Expiry date | Nov 12, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telecommunication system is described that has an interface and multiple lines, such as T-1 lines. The multiple lines include at least one service line and at least one spare line. The interface comprises a bus across the service line and spare line and a common controller. The bus includes switches for interconnecting and disconnecting the bus from one or more of the multiple lines. The common controller accomplishes multiple functions: (a) responding to a transfer signal by interconnecting the spare line to the bus and disconnecting the service line from the bus, (b) recognizing a restoration of service signal on the service line upon which service was disconnected, and (c) sending commands to the switches for reconnecting the service line to the bus and disconnecting the spare line from the bus. Further, in one embodiment, the common controller also recognizes a restoration of service signal on the spare line. The transfer signals and restoration of service signals are provided to the telecommunications system by an outside source, such as a telephone company central office.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.