Bosch Plena Power Amplifier, Руководство по эксплуатации, Страница: 153 / 192

Clause / Requirement Compliance Signature
These indications may be suppressed
during the fire alarm condition. Plena Voice Alarm System fault
indicators are not suppressed.
There are separate indicators for
fault and voice alarm conditions.
The only exception is the audible
indicator.
8.2.5 The following faults shall be
indicated at least by means of the general
fault warning indicator:
a any short-circuit or interruption in a
voice alarm transmission path
between parts of the VACIE contained
in more than one cabinet even where
the fault does not affect a mandatory
function;
All transmission paths of the Plena
Voice Alarm System are
supervised.
When the Plena Voice Alarm
System is used in a redundant loop
configuration, the loss of the
redundant path is reported.
All control input contacts of the
Plena Voice Alarm System can be
supervised for shorts and
interruptions.
Analog audio connections to
external parties can be supervised
by pilot tone supervision.
b any short-circuit or interruption in the
voice alarm transmission path to the
emergency microphone capsule, if
provided;
The capsule of the Plena Voice
Alarm System emergency
microphone can be supervised for
both short-circuit and interruption.
This is configurable.
c any short-circuit or interruption in the
voice alarm transmission path
between the VACIE and loudspeakers
even where the fault does not affect
the operation of loudspeakers.
The loudspeaker lines of the Plena
Voice Alarm System can be
supervised.
Plena Appendices | en 153
Bosch Security Systems B.V. Installation and Operation manual 2013.07 | V2.0 |