Token ring concentrator with global reset capability
US5132832A · kind A · utility
15Cited by
12References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1990 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Dec 18, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/42
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A concentrator for a token ring network utilizes latching relays having separate set and reset coils for controlling the insertion/bypass of the ports into the token ring network. Circuitry for providing a global reset capability for all of the ports includes transistors which function to both provide a path for the global reset pulse to the reset coils and to isolate each reset coil in a port from the reset coils of the other ports. Other circuitry is provided for preventing activation of the global reset function from affecting an active port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.