Rotary controls | Bosch Appliances PLE-2MA240-US, PLE-2MA120-US

Plena Mixer Amplifier Installation and User Instructions Connections and settings

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table 4.2: Rotary controls

Rotary control	Effect	Typical example
Ducking level control	Sets the required ducking level when VOX and/or	Set the ducking level control to
	push to talk is active (see table 4.1). When the	mute if you want the
	ducking level is set to mute, the music volume will be	announcement to be heard without
	fully attenuated; when the ducking level is set to mix,	background music.
	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.
Chime volume	Alters the chime volume. The mid range is -8 dB	Set the volume of the chime to a
control	(40 V), which should be sufficient for most	higher level when the system is
	applications. Test the chime by switching on	being used in large open areas or
	microphone 1. Remove the microphone after testing	when important announcements
	if it is not further required.	have to made.
Telephone	Attenuates the emergency announcement or signal.	Set the volume of the emergency
emergency/70V	Control range from -25 dB to 0 dB. For safety	announcement to a higher level
volume control	reasons, the volume of the emergency	when the system is being used in
	announcement or signal cannot be fully set to zero.	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.

When ducking, music in a non-selected zone is also affected.

Slide switch setting	Effect	Typical example
Line out	All mixed inputs (microphone/line, emergency, and	Various set-ups are possible.
	music) are available.
Music only	A dedicated music out source is available for another	The “music master output” can be
	external device. Only the music inputs (18, 19, and	connected to a telephone system,
	20) are available. All other inputs, including the	so that callers can listen to music
	Tel. emergency/70V input will be overridden.	when they are put on hold.

Bosch Security Systems 2007-10 PLE-2MA120-US, PLE-2MA240-US en