Bosch Praesideo 4.0 - Инструкция (Страница 67)

Praesideo 4.0 en | 77
Bosch Security Systems B.V. IUI-PRAESIDEO_4.0 | V1.0 | 2013.01 Installation and User Instructions
13.11 Indicator testing Praesideo is compliant.
All mandatory visible and audible indicators shall be
testable by a manual operation at access level 1 or 2.
Praesideo provides an ‘Indicator test’ action that can be
configured for a key on a call station keypad or keypad
kit. When activated all indications on that call station and
all its connected keypads are switched on to visually
check the indicators. Bi-color indicators alternate
between both colors. The call station monitor
loudspeaker will sound a single tone chime with priority
223. If a numeric keypad is connected to the call station,
its LCD shows an alternating test pattern to visually
check all pixels.
The installer must take care that indicators that are
connected to control output contacts are testable.
13.12 Audio performance Praesideo is compliant.
13.12.1 Output power
The VACIE output power shall be as declared by the
manufacturer.
The output power of the amplifier elements of the
Praesideo system (Power Amplifiers, Basic Amplifiers)
are specified in the data sheets and in the IUI.
13.12.2 Signal-to-noise ratio
The VACIE shall have an A-weighted signal-to-noise
ratio of at least 45 dB (see IEC 60268-1).
The A-weighted signal-to-noise ratio of the Praesideo
amplifiers (Power Amplifiers and Basic Amplifiers) is
specified in the data sheets and in the IUI. The signal-to-
noise ratio is above 85 dB. The complete signal chain
from microphone to loudspeaker is compliant to this
clause.
13.12.3 Frequency response
The frequency response of the VACIE shall fit within the
non-shaded area in Figure 1 for sound sources without
microphone(s) (e.g. message store) and Figure 2 for
sound sources with microphone(s).
Clause / Requirement Compliance Signature