Glossary
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Building Technologies
A6V10210424_j_en_--
Fire Safety
2018-08-29
Stub
Detector line which is only connected to the fire control panel on one side. In the event of an open line or
short-circuit, it may no longer be possible for all fire detectors to communicate with the fire control panel.
Technical message
Events (e.g., from third-party systems) evaluated via sensors or contacts which are forwarded to the fire
control panel.
Universal control group
Level in control tree of the fire detection system. The fire control group contains the fire controls.
Unmanned
Switching status of the alarm organization, if operating personnel are not present and cannot intervene
should an event arise (alarm, fault).
VdS
Abbreviation for 'Vertrauen durch Sicherheit', a company in the Gesamtverband der Deutschen
Versicherungswirtschaft e.V. (GDV). Inspection and certification body for fire detection systems in Germany.
Visibility
Defines which part of a site is visible and can be operated on a station.
Zone
Level in the detection tree. The zone has at least one fire detector. The decision on alarm is made at zone
level. The zone is assigned to a section or an area.