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Bosch Security Systems | 2011-02
Praesideo 3.5 | Installation and User Instructions | EN54-16: 2008 en | 32
7.3 Audible warning (option with requirements)
An audible warning of the voice alarm condition might be
the same as that for the fault warning condition. If they are
different, the voice alarm condition warning shall have
priority.
Output contacts of the Praesideo system can be
configured in the site specific data as either Emergency
alarm buzzer or Fault alarm buzzer. A buzzer must always be
connected to the output contact to generate the actual
audible warning. A single buzzer can be used as audible
warning device for both the voice alarm condition and the
fault warning condition, by using a parallel connection of
the output contacts of the Emergency alarm buzzer and the
Fault alarm buzzer to control the actual buzzer.
The Praesideo system does not offer priority handling for
the Emergency alarm buzzer (i.e. the Fault alarm buzzer is
not automatically silenced when the Emergency alarm
buzzer is activated).
7.4 Delays to entering the voice alarm condition
(option with requirements)
The VACIE may be provided with a facility to introduce a
delay before entering the voice alarm condition. In this
case:
Since the Praesideo system does not process the fire
sensors, this functionality is better handled by the device
managing the fire sensors (the CIE). The Praesideo system
itself does not implement this requirement.
a the operation of the delay shall be selectable at access
level 3;
b the operation of the delay shall be in increments not
exceeding 1 min up to a maximum of 10 min;
c the delay to one output signal shall not affect the delay
to other outputs;
d it shall be possible to override the delay by a manual
operation at access level 1;
e there shall be provision to switch on and switch off
delays by means of a manual operation at access
level 2 (see Annex A for information on access levels);
f there may be provision to automatically switch on and/
or switch off delays by means of a programmable timer
which shall be configurable at access level 3;
g a separate discrete light emitting indicator and/or a field
on the alphanumeric display shall be visible when a fire
signal is received and the delay activated. This
indication shall be suppressed when the VACIE enters
the voice alarm condition.
7.5 Phased evacuation (option with requirements) Praesideo is compliant.
The VACIE may have a provision to phase the warning
signals to the emergency loudspeaker zones. The facility
shall be configurable at access level 3. There may be
provision to switch on and switch off the phased evacuation
sequence by means of a manual operation at access level 2
(see Annex A for information on access levels).
Phased evacuation can be accomplished by phased
triggering of input contacts that start the same voice alarm
call in different zones. The device managing the fire sensors
(CIE) is responsible for the phased triggering of the
contacts. Voice alarm calls can also be started via the
Open Interface, where the device managing the fire
sensors (CIE) is responsible for the phased invocation of
the necessary Open Interface methods.
The input contacts must be configured at access level 3.
Using the Open Interface requires access level 2.
Praesideo also offers the possibility to start up to 5 calls
simultaneously from a single input contact or key,
configured as ‘Call activation key’ or ‘Start’, where phasing
can be implemented using accurately defined periods of
silence in the call macros, preceding the actual tone or
message. The installer shall configure the calls correctly
using these chimes/messages (at access level 3) and use
call station keypad keys to switch on and off the chimes/
messages (at access level 2).
7.6 Silencing of the voice alarm condition Praesideo is compliant.
7.6.1 Silencing of the voice alarm condition from the
CIE
7. 6 .1.1 Where the voice alarm condition has been triggered
from the CIE, the VACIE shall respond appropriately to a
silence instruction from the CIE.
Voice alarm calls triggered from the CIE can also be
stopped from the CIE. To reset the voice alarm condition an
Acknowledge Emergency and Reset Emergency action is
required.
Clause / Requirement Compliance Signature