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Building Technologies
Glossary
Alarm device
Element in the fire detection system for acoustic
and/or visual alarming, e.g. alarm sounder,
beacon.
Alarm indicator
Visual display to signal an alarm or pre-alarm.
Alarm verification concept
Concept for preventing false alarms which takes
into account the interaction of the operating
personnel in the alarming sequence.
Alarming equipment
Alarm devices and remote transmissions
Automatic fire detector
Device which measures a physical parameter
(e.g. warmth) in order to detect a fire.
BACnet
Abbreviation for 'Building Automation and
Control Networks'. It is a network protocol for
building automation, such as for communication
between a management station (MMS) and a fire
detection installation.
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.
Detector line
Electrical connection between the detectors and
the fire control panel. There are collective
detector lines and addressed detector lines.
Detector line topology
Arrangement of devices on the detector line.
Depending on the detector line, up to three
topology types are possible: Loop, stub, stub on
loop
Effect
An impact caused by a control, e.g., activation of
a hardware output or a command.
Ethernet station
Participants in the Ethernet sub-net without local
connection for the PC.
Extended networking
Connection of several SAFEDLINK networks.
External alarm indicator
Optical element for displaying the fire location,
which is at some distance from the detector. It is
normally mounted in the room at the point where
the corresponding detector is accessible.
False alarm
Alarm not triggered by a danger.
FCnet
Protocol used in SAFEDLINK.
FCnet/Ethernet
FS20-specific term for networking with electric
Ethernet.
FCnet/SAFEDLINK
FS20 system bus.
FDnet
Addressed detector line for FDnet devices.
Fire control
Control which is activated in the event of a fire
alarm.
Floor repeater display
A display device without operating elements.
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