Dual rail time and control unit for a T-S-T-digital switching system
US4399533A · kind A · utility
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7References
8Claims
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Assignee
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Key dates
| Filing date | Dec 23, 1980 |
| Grant date | Aug 16, 1983 |
| Priority date | — |
| Expiry date | Dec 23, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A time-space-time switching network is shown in which there is a crossover of voice information from one rail to another rail in a large digital switching system. The time and control unit is divided into two rails both incoming and outgoing. Each rail multiplexes two 193 channel streams into one 386 channel stream of information. These two rails crossover in the terminating time switching stage but remain segregated throughout the space switching stage and the originating time switching stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.