Siemens Cerberus CS1140 - 4 Logical and Physical Structure

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9
Fire & Security Products
Siemens Building Technologies Group
05.2003
4 Logical and physical structure
In the CS1140 fire detection system, the logical structure is completely separated from
the physical structure. This enables the greatest possible flexibility. Display and control
terminal are based on the geographical and organizational aspects and are independent
of the actual hardware installation of the detector network.
C-Bus
D-Bus
I-Bus
Geographical features ( → building structure)
Main building
1st floor
Room 104
2nd floor
Ground floor
1st floor
Area
Section
Zone
Element
Main
building
Ground
floor
1st
floor
2nd
floor
Room
102
Room
103
Room
104
Canteen
Linking
Control terminal
Control unit
CC/CI
logical structurephysical structur
Function unitStation
Device
CT11
Level 1
Level 2
Line 1
Level 1
Line 2 Line 3 Line 4
Level 2
Level 3
DCW
DOW
Logical structure
The logical structure is a con
-
figuration of the geographica
l
features of a system. It can
be modified easily to the
building structure, room uti-
lization etc.
Within the same control unit
the logical structure is inde-
pendent of the wiring of the
detector network.
Linking
The lowest levels of both
structures are linked to each
other. It is determined which
physical devices (e.g. detec-
tors) are in which logical or
geographical location.
Physical structure
The physical structure is a
configuration of the hardware
.
It results from the hardware
installation. The number of
used levels is depending on
the type of hardware.
Ware-
house
Reception
EDP
room