Bosch Praesideo - Инструкция (Страница 71)

Bosch Security Systems | 2011-02
Praesideo 3.5
| Installation and User Instructions | ISO7240-16: 2007
en
| 73
ISO7240-16: 2007 compliancy checklist
Additional clauses
Clause / Requirement Compliance Signature
EN54-16 and ISO7240-16 are very similar standards. The
following list gives a summary of the differences between the
EN54-16 and the ISO7240-16 standards for voice alarm
control and indicating equipment. Only essential differences are
listed. Differences in phrasing between the standards (that
occur very frequently) are omitted. Also similar clauses that
have a different number in ISO7240-16 compared to EN54-16
are not listed. The changes are divided into sections
• Additions : clauses in ISO7240-16 that do not exist in
EN54-16; the ISO7240-16 text is generally given.
• Changes : clauses in EN54-16 and ISO7240-16 that
are basically the same but differ in detail, the change is
given by using italic typeface.
• Exclusions : requirements that are in EN54-16 but are
not in ISO7240-16.
Responsibility of the installer. The installer must use the
checklist for EN54-16 before proceeding with this list for
ISO7240-16
Clause / Requirement Compliance Signature
6 Quiescent condition
Any kind of system information may be displayed during the
quiescent condition. However, no indications shall be given that
can be confused with indications used in
• the test condition.
The optional test condition is not supported by the Praesideo
system.
7 Voice-alarm condition
7.1 Reception and processing of alarm signal
7.1.4 Where the s.s.c.i.e. is used for non-emergency purposes,
the voice-alarm condition shall disable or override any functions
not connected with the emergency functions.
Upon entering the emergency mode Praesideo can be
configured to override non-emergency functions, based on
priority settings.
7.2 Alert signal - Optional function
7.2.1 The s.s.c.i.e. may produce one or more alert signals
complying with ISO 7731.
Praesideo offers various alert signals that comply with
ISO7731. Also prerecorded signals can be stored and selected
in Praesideo.
The installer must select and configure an alert signal that is in
compliance with ISO7731 from the list of available signals that
Praesideo offers. The preferred signal and required sound
pressure level depend on the the actual application, as the
parameters of the danger signal (signal level, frequency
spectrum, temporal pattern, etc.) shall be designed to stand
out from all other sounds in the reception area and shall be
distinctly different from any other signals.
The sound pressure level shall be at least 65dBA at any
position in the signal reception area, while being at least 15dB
above A-weighted ambient noise, but it may not exceed
118dBA.
The danger signal shall include frequency components
between 500Hz and 2500Hz. Pulsating danger signals are
preferred to signals that are constant in time, while the
repetition frequencies shall be in the range from 0.5Hz to 4Hz.
Examples of compliant Praesideo tones are the ‘DIN alarm’
(sweeping signal from 1200Hz down to 500Hz in 1s,
repeating) and the ‘2-tone alarm 2’ (alternating frequencies of
650Hz and 850Hz, every frequency lasts 500ms, repeating).
7.2.2 Where a voice signal is used as part of the alert signal, the
alert signal shall precede the first pre-recorded voice message
for 3 s to 10 s. Successive alert signals and messages shall
then continue until either automatically or manually changed or
silenced. The interval between successive messages shall not
exceed 30 s and alert signals shall be broadcast whenever
periods of silence might otherwise exceed 10 s.
Praesideo offers this functionality via its call macros. The
installer must configure the call macros accordingly.
7.2.3 Where more than one alert signal is provided, each signal
shall be clearly distinguishable.
Praesideo offers a wide choice of independent alert and alarm
signals.
7.3 Evacuate signal