Bosch Plena - Page 107

Bosch Security Systems | 2006-06 | 9922 141 10377 en
Plena Voice Alarm System | Installation and User Instructions | IEC60849 en | 107
k The system shall be capable of being divided
into emergency loudspeaker zones if required
by the evacuation procedure. Such zones need
not be the same as other zones, for example
emergency detection zones or non-emergency
loudspeaker zones.
Compliant, if properly installed. Responsibility of
the installer.
l In determining loudspeaker zones, the
following criteria shall apply:
1 The intelligibility of messages broadcast in
one zone shall not be reduced below the
requirement of 5.1 by the broadcasting of
messages in other zones or from more
than one source.
Compliant, if properly installed. Responsibility of
the installer.
2 No emergency detection zone shall
contain more than one emergency
loudspeaker zone. For non-emergency use,
a loudspeaker zone may be subdivided.
Compliant, if properly installed. Responsibility of
the installer.
m A secondary power source shall be available
(see 5.6).
Compliant, if properly installed. Responsibility of
the installer.
The system has 24V back-up power connection.
table 1: IEC60849 - 4.1 Principal features
Requirement Compliance Signature