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Publication of DK251377ApublicationCriticalpatent/DK251377A/da
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Publication of DK141183CpublicationCriticalpatent/DK141183C/da
G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance
Method and apparatus for the uninterrupted switching of at least one alternating-current consumer of a voltage supply source or current supply source to a different voltage supply source or current supply source
Method for determining thresholds of a state monitoring unit for a fire detection and/or extinguishing control center, state monitoring unit, and system comprising same