Glossary
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Building Technologies
A6V10210424_j_en_--
Fire Safety
2018-08-29
Cause group
Configuration element that summarizes causes that trigger control in a particular case.
CDV
CDV stands for 'Country Data Variant'. A CDV file limits the value range for a specific country; these limited
values can be used for a meta datum for 'additional information' elements. When entering the meta datum,
the configuration tool displays a drop-down menu that lists the possible values.
C-NET
Addressed detector line for C-NET devices.
Collective detector line
Detector line technology in which all detectors that are connected to the same detector line have a collective
address. This makes it impossible to identify individual detectors.
Control group
Combination of several similar controls.
Control tree
Structure tree with control group and control.
CPU
Abbreviation for 'Central Processing Unit'. The computing unit of the fire control panel.
Danger level
A fire detector signal which conveys the possibility of fire. Automatic fire detectors, for example, have
danger levels 0 to 3. Manual call points only have danger levels 0 and 3. 0 = no danger, 1 = possible
danger, 2 = probable danger, 3 = highly probable danger.
Degraded mode
Defined reduced operation mode which occurs when part of the fire detection installation fails.
Detection tree
Diagram of the geographical and organizational arrangements of sensors in a building. This is a hierarchical
structure comprising the area, section, and zone.
Detector line
Electrical connection between the detectors and the fire control panel. There are collective detector lines
and addressed detector lines.
Effect
An impact caused by a control, e.g., activation of a hardware output or a command.
Emergency power operation
The fire detection installation is supplied by the second source of power, e.g., batteries.
Ethernet station
Participants in the Ethernet sub-net without local connection for the PC.
