Bosch Appliances Music Mixer PLE-1MA030-EU Benutzerhandbuch

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 | 23

Rotary control

Effect

Typical example

Ducking level control

Sets the required ducking level when VOX and/or 

push to talk is active (see table 4.1). When the 

ducking level is set to mute, the music volume will be 

fully attenuated; when the ducking level is set to mix, 

both music and speech inputs can be heard - music 

and speech will be mixed. When ducking the music 

input is ducked (attenuated), the microphone/line 

inputs are always muted when a call is made.

Set the ducking level control to 

mute if you want the 

announcement to be heard without 

background music.

Telephone 

emergency/100V 

volume control

Attenuates the emergency announcement or signal. 

Control range from -25 dB to 0 dB. For safety 

reasons, the volume of the emergency 

announcement or signal cannot be fully set to zero.

Set the volume of the emergency 

announcement to a higher level 

when the system is being used in 

large open areas.

Note
When PTT or VOX are selected, the ducking 

control controls between 3 dB attenuation (very 

little ducking) to –∞ dB (muted).

When ducking, the music is also present on the 

Call only output. If you do not want this, set the 

ducking control to mute.