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Fail secure door
CCTV glossary (глоссарий терминов по видеонаблюдению) |
A door that automatically locks during a power failure, preventing anyone from entering, but allowing them to exit during an emergency.
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Automatically, английский
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Fail safe door, английский
A door that will unlock automatically in the event of a power failure to permit entering and exiting through the door.
Magnetic contact, английский
A device that sends a signal when the magnetic field between two monitored access points is broken.
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