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Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en
Plena Mixer Amplifier | Installation and User Instructions | Connections and settings en | 17
4.1.4 Emergency inputs
The Tel. emergency/100V input, with VOX
functionality, is used for receiving emergency
announcements or signals (such as a fire alarm). This
input has absolute priority, and will overrule all inputs
when an emergency announcement or signal is
received.
Either a telephone line or a 100 V input signal can be
connected to the Euro style pluggable screw terminal
connector (1) at the rear of the unit. See section 4.1.4.1
and section 4.1.4.2.
To adjust the volume of the emergency announcement
or signal, turn the rotary dial (2) at the rear of the unit.
For safety reasons, the volume of the emergency
announcement or signal cannot be set to zero.
The master volume control setting (5) does not influence
the volume setting of the emergency announcement or
signal.
4.1.4.1 Connecting 100 Volt input signal
Connect the 100 Volt input signal as shown in
figure 4.5.
Caution
Never connect telephone lines and a 100 V
signal to the Euro style connector at the same
time.
Note
Tel. emergency input does not mute the
incoming signal so that an incoming pilot tone
will be fed to the zone outputs. With this feature
it is possible to use the mixer amplifier in a
Bosch Voice Alarm System when using end of
line boards (PLN-1EOL).
The signal that is delivered to the unit should be
quiet when a call is not made. The pilot tone and
frequencies below 300 Hz are filtered from the
trigger signal so that the input will not trigger
from a pilot tone or low frequency rumble.
figure 4.5: Connecting 100 Volt input signal