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14. Terms and denitions
Bidirectional 2-way wireless (2WAY)
Bidirectional: Bidirectional components can also receive feedback from the alarm panel and evaluate it
(e.g.via LED displays).
Certifications
Inspection seal from an independent body that ensures the high quality and safety of alarm systems (in
Germany the following are relevant: certication as per POS in accordance with accident prevention regulations
and VdS loss prevention)
Chip key/proximity
Electronic “key” for quick access without code entry.
Coding of wireless signals
Coding ensures secure transmission of signals without manipulation or tampering between the alarm panel
and its components.
Combination signalling device
Combined sounder, e.g. siren (acoustic signal) + strobe (visual signal).
Communication options
This allows for a silent alarm, via voice/test messages or digital logs, mobile wireless technology (GSM module).
Danger alarm system
Alarm system that triggers an alarm for additional dangers/emergencies as well as intrusion.
Danger detector
Device that sends a message to the alarm panel when a certain event occurs (e.g. movement, glass breakage,
vibrations).
Display
Display eld on the alarm panel for operating and conguring the panel.
External alarm (alarm type)
Alarm that causes all sounders to respond (indoors and outdoors). The event is also reported to a monitoring
station, for example.
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