FIRE ALARM RECEIVER PROVIDED WITH FAIL-SAFE FUNCTION AND FIRE ALARM SYSTEM USING SAME

PROBLEM TO BE SOLVED: To provide a fire alarm receiver having a so-called backup function for performing a fire alarm such as a display and sound even when abnormality is caused in a storage means required for driving a control means in a main unit. SOLUTION: The control means 10 is normally connect...

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Bibliographische Detailangaben
1. Verfasser:	TANAKA KEISHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ORDER TELEGRAPHS PHYSICS SELECTING SIGNALLING SIGNALLING OR CALLING SYSTEMS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a fire alarm receiver having a so-called backup function for performing a fire alarm such as a display and sound even when abnormality is caused in a storage means required for driving a control means in a main unit. SOLUTION: The control means 10 is normally connected to a main storage means 15, and when abnormality is caused in the main storage means 15, a switching means 16 is driven and the control means 10 is disconnected from the main storage means 15 and connected to a sub-storage means 14. COPYRIGHT: (C)2004,JPO