Bosch 3.5 Manuel D’Utilisation

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Bosch Security Systems | 2011-02
2011-02 | Installation and User Instructions | 2 | Introduction
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2.6 Evacuation 
compliance
The Praesideo range of equipment complies with the 
various emergency standards which are applicable all 
over the world. The network controller is capable of 
monitoring all the units in the system, from the 
microphone capsule of the call station to the 
loudspeaker line. A built-in memory stores the last 
200 fault messages. Any fault is reported back to the 
network controller. The system also meets emergency 
requirements for emergency call stations. The highly 
open system concept, with the possibility for large 
numbers of control inputs and outputs satisfies even 
difficult emergency requirements.
2.7 External 
interfaces
The interfaces to the system can be audio, control input 
or Ethernet. The Ethernet interface is provided at the 
network controller. The audio and control inputs can be 
anywhere in the system, for example at the power 
amplifier, audio expander or network controller.
The system also accepts contact closures via the control 
inputs. The configuration allows the user to configure 
the input to initiate the desired actions in the system. 
The flexibility to route any input from one system unit 
to another makes it possible to use the Praesideo range 
of products or a wide range of public address and 
emergency sound system applications.
2.8 
Reduced installation costs
The Praesideo architecture uses the daisy chain 
principle with the possibility of branching for both data 
and audio signals. This makes the system wiring very 
cost-effective, using 2 fiber cores for data and audio 
communication and a copper wire pair to supply power 
to the units. Power supply for the system units can be 
provided locally if the distances are very long.
Combining various functions in a single unit also makes 
equipment more cost-effective than systems in which 
separate units have to be purchased for all the specific 
functions. This combination of functions also saves lot of 
rack space and further reduces installation costs.
2.9 High 
system 
flexibility
The Praesideo system is a highly versatile system which 
gives the user a high degree of flexibility in the number 
of zones, call stations, audio inputs and outputs, control 
inputs and outputs, etc.