3. Time distribution
Today, a time distribution network must satisfy a number of functions:
transmit time information over large areas to new peripherals: computers, PLCs, etc;
program household appliances, such as doorbells, doors and shutters, heating and ventilation systems.
A time distribution system comprises a master clock equipped with a device enabling it to periodically send reference time signals to secondary or receiving clocks. Depending on the number of start modules or time bases, the master clock is referred to as a time center or time centre.
3.1 Synchronized time distribution modes
There are two different ways of distributing time by synchronization:...
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Time distribution
Organizations
Research centers and laboratories
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France
ENSMM École Nationale Supérieure de Mécanique et des Microtechniques de Besançon. http://www.ens2m.fr/
France Telecom R & D http://www.rd.francetelecom.fr/
...
Standardization
Association française de normalisation (AFNOR) http://www.boutique.afnor.fr
Watchmaking
General
- Engrenages à denture cycloïdale corrigée ou à développante. Modules préférentiels. - NF S 80-501 - 3.95
- Engrenages à denture cycloïdale corrigée ou à développante. Dentures pour couples d'engrenages. - NF S 80-504 - 3.95
- Engrenages à denture cycloïdale corrigée ou à développante....
Manufacturers
(Non-exhaustive list)
Mechanical movements for watches (main)
Citizen
Jaeger Lecoultre: http://www.jaeger-lecoultre.com
Lemania
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