Bosch Appliances Music Mixer PLE 1MA030 EU User Manual

4.3.1 Rear panel settings ........................................................................................................................................................ 22

4.3.2 Pin settings and labelling .............................................................................................................................................. 24

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Table of contents

en | 4

5. Operation ..................................................................................................................................................................... 25

5.1 Switch on and off ................................................................................................................................................................. 25

5.1.1 Switch on ......................................................................................................................................................................... 25

5.1.2 Switch off ......................................................................................................................................................................... 25

5.2 Microphone/line controls .................................................................................................................................................... 26

5.3 Music controls ....................................................................................................................................................................... 26

5.3.1 Source selection ............................................................................................................................................................. 26

5.3.2 Volume control ................................................................................................................................................................ 26

5.4 Tone control .......................................................................................................................................................................... 26

5.5 Output controls ..................................................................................................................................................................... 26

5.5.1 Master volume control ................................................................................................................................................... 26

6. Technical data ............................................................................................................................................................. 27

6.1 Electrical ................................................................................................................................................................................. 27

6.1.1 Mains power supply ....................................................................................................................................................... 27

6.1.2 Power consumption ....................................................................................................................................................... 27

6.1.3 Performance .................................................................................................................................................................... 27

6.1.4 RJ-45 input 1 x ................................................................................................................................................................ 27

6.1.5 Mic/line input 4 x ............................................................................................................................................................. 27

6.1.6 Music inputs 3x ............................................................................................................................................................... 28

6.1.7 Emergency / telephone 1 x .......................................................................................................................................... 28

6.1.8 Master/music output 1 x ............................................................................................................................................... 28

6.1.9 Loudspeaker outputs 100 V ........................................................................................................................................ 28

6.1.10 Loudspeaker output 8 ohm* ........................................................................................................................................ 28

6.2 Mechanical ............................................................................................................................................................................. 28

6.3 Environmental ........................................................................................................................................................................ 28

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Introduction

en | 5

Introduction

1.6

Icons

1.6.1 Note icons

1.1

Purpose

The icons used in combination with Notes provide extra

information about the Note. See the following

examples:

The purpose of these Installation and User Instructions

is to provide information required for installing,

configuring and operating a Plena Mixer Amplifier.

1.2

Digital document

Note

General icon for notes.

These Installation and User Instructions are also

available as a digital document in the Adobe Portable

Document Format (PDF).

Note

1.3

Intended audience

Consult the indicated source of information.

These Installation and User Instructions are intended

for installers and users of a Plena system.

1.6.2 Caution, Warning, and Danger

icons

1.4

Related documentation

Safety Instructions (9922 141 1036x).

The icons used in combination with Caution, Warnings,

and Dangers indicate the type of hazard present. See the

following examples:

1.5

Alerts

Four types of alerts are used in this manual. The alert

type is closely related to the effect that may be caused if

it is not observed. These alerts - from least severe effect

to most severe effect - are:

Caution, Warning, Danger

General icon for Cautions, Warnings and

Dangers.

•

Note

Alert containing additional information. Usually, not

observing a note alert does not result in damage to

the equipment or personal injuries.

Caution

The equipment can be damaged if the alert is not

observed.

•

Caution, Warning, Danger

Icon for risk of electric shock.

Warning

Persons can be (severely) injured, or the equipment

can be seriously damaged, if the alert is not

observed.

Caution, Warning, Danger

Icon for risk of electrostatic discharge.

•

Danger

Not observing the alert can result in death.

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Introduction

en | 6

1.7

Conversion tables

In this manual, SI units are used to express lengths,

masses, temperatures etc. These can be converted to

non-metric units using the following information.

table 1.1: Conversion of units of length

1 in =

1 ft =

1 mi =

25.4 mm

2.54 cm

0.3048 m

1.609 km

1 mm =

1 cm =

1 m =

0.03937 in

0.3937 in

3.281 ft

1 km =

0.622 mi

table 1.2: Conversion of units of mass

1 lb = 0.4536 kg 1 kg =

2,2046 lb

0.0145 psi

table 1.3: Conversion of units of pressure

1 psi = 68.95 hPa 1 hPa =

Note

1 hPa = 1 mbar.

°F = --(°C + 32)

°C = --(°F – 32)

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Description

en | 7

Description

The volume of each microphone/line signal can be

individually adjusted to obtain the required mix; the

mixed output is controlled via the master volume

control and separate high/low tone controls.

The unit is easy to use, and provides a crisp call or clear

music. The amplifier also has enhanced features such as

ducking level control, priority, labelling, and setting

indicators.

2.1

The Plena product range

The Plena Mixer Amplifier is part of the Plena product

range. Plena provides public address solutions for places

where people gather to work, worship, trade, or relax. It

is a family of system elements that are combined to

create public address systems tailored for virtually any

application

All Microphone/line inputs can be switched between

microphone level and line level sensitivity. The inputs

are balanced but can also be used unbalanced. Phantom

power can be selected via a DIP switch to provide

power to condenser microphones. Input channels 1

and 2 can take priority over all other microphone and

music inputs:

The Plena product range includes:

•

mixers

preamplifiers

power amplifiers

a music source unit

a digital message manager

a feedback suppressor

call stations

an All-in-One system

a voice alarm system

a timer

•

Input 1 can be activated by contact closure on a PTT

(push to talk). A chime can be configured to precede

an announcement.

•

Input 2 can be switched automatically if a signal is

available at the input, for example, if someone

speaks into the microphone (VOX activation).

a charger

a loop amplifier

A telephone/100 V emergency input with VOX

activation is also provided for easy integration with

another PA system or a telephone paging system. It has

its own volume control and overrides all other inputs,

including the call station and inputs 1 and 2.

The various elements are designed to complement each

other thanks to matched acoustical, electrical and

mechanical specifications.

2.2

Content s of box

The unit also has a line output to add amplifiers for

larger systems that require more output power. This

output can be switched to music only, for example, so

that music on hold can be provided for the telephone

system.

The packaging box contains the foll owing contents:

•

PLE-1MA030-EU, PLE-1MA060-EU, or

PLE-1MA120

•

Labels and colored pins for indicating favorite

settings

•

Power cord

Plena Bonus CD

Mounting brackets (LBC 1901/00)

Users can create custom labels for inputs and music

sources. These labels can be attached to the special

holders at the front of the mixer amplifier. Colored pins

can also be inserted at various positions around the

volume and tone dial controls to indicate favorite

settings for a particular application.

2.3

The Plena Mixer Amplifier

The Plena Mixer Amplifier is a high performance,

professional public address unit for mixing up to four

separate microphone/line signals, and any one of three

separate music signals. For a schematic overview of the

Plena Mixer Amplifier, see figure 2.1 on the next page.

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Description

en | 8

An LED meter monitors the master output before the

zone selection. This signal is also present on the

headphone connector below the output meter. For

total reliability and ease of use, a limiter is integrated

into the output stage to restrict output if the user

applies too much signal.

100V

ducking

DIP drive

DIP

PTT

XLR+P

Call Only

100V

LINE/MIC

100V

Amplifier

Phantom

Power

8 Ohm

Click

suppression

LINE/MIC

Music/Line

Bal. output

LINE/MIC

1(disc)

2(radio)

3(aux)

LINE

201

115V,230V

figure 2.1: Schematic overview of the Plena Mixer Amplifier

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Description

en | 9

2.4

Controls, connectors and

indicators

Note

Users can create custom labels for the

2.4.1 Front panel

microphone/line inputs and description of the

music sources. These labels can be attached to

the mixer amplifier at position numbers 2 and 3

(see figure 2.2). Colored pins can also be

inserted at various positions around the dial

controls to indicate the favorite settings for a

particular application. For more information on

inserting and removing pins, see section 4.3.2.

See figure 2.2 for an overview of the controls and

indicators.

1 Power button.

2 Label holder for user-defined description of

microphone/line inputs - custom labels can be

created by user.

3 Label holder for user-defined description of music

sources - custom labels can be created by user.

4 Master high tone control.

5 Master volume control - controls all inputs except

emergency and call station.

6 Output level meter (-18 db, 0 db)

7 Input level control:

2.4.2 Plena PLE-WP2Z3S wall panel

The optional Plena PLE-WP2Z3S wall panel can be

used to remotely control the unit from a maximum of

four remote locations. The appearance of the wall panel

is matched to the Bosch loudspeaker volume controls.

•

microphone/line 1

microphone/line 2

microphone/line 3

microphone/line 4

The music source can be easily changed. The status of

each music source is indicated by an LED.

8 Music source selector (for music inputs 1, 2, and 3).

9 Music source volume control.

10 Master low tone control.

A standard CAT 5 cable is used to connect the wall

panel to the mixer-amplifier. The maximum distance is

200 m. Please refer to the relevant datasheet for more

information.

11 Air inlet holes.

Note

Do not obstruct the airflow into the unit.

12 Headphone socket.

figure 2.2: Front panel

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Description

en | 10

2.4.3 Rear panel

See figure 2.3 for an overview of the connectors and

switches:

14 Microphone/line 3 input, XLR connector - DIP

switch settings for mic/line, and phantom power (see

number 15).

15 DIP switch for microphone/line 3 and microphone/

line 4 (see numbers 14 and 16 respectively).

16 Microphone/line 4 input, XLR connector - DIP

switch settings for mic/line, and phantom power

(see number 15).

1 Tel. emergency/100V input, Euro style pluggable

screw terminal connector - VOX function. This input

has highest priority.

2 Telephone emergency/100V input volume control -

control range -25 dB to 0dB (see number 1).

3 Remote control wall-panel-input, RJ-45 connector.

Wall panel incorporates: BGM source selection, and

zone on/off control.

17 Outputs:

•

Call only, screw terminal connector 100 V.

Screw terminal connector 100 V, and 8 Ohm.

18 Mains fuse.

4 Ducking level control for microphone/line inputs 1

and 2.

19 Earth connection screw.

5 Music input (number 1 disc), 2x RCA/cinch

connectors. Stereo, summed mono.

Note

6 Music input (number 2 radio), 2x RCA/cinch

connectors. Stereo, summed mono.

The unit must be earthed.

7 Music input (number 3 auxiliary), 2x RCA/cinch

connectors. Stereo, summed mono.

20 Mains connector (3-pole).

8 Music master output, XLR connector - switch setting

for line out, or music only. This output can carry out

either music only, or the master output. For more

information, see chapter 4.2.3.

9 Cooling fan (PLE-1MA120 only).

Note

Always allow adequate space at the rear of the

unit for ventilation.

10 Microphone/line 1 input with trigger, Euro style

pluggable screw terminal connector - DIP switch

settings for: chime, PTT (push to talk), mic/line,

speech filter, and phantom power (see number 12).

Input is wired in parallel with microphone/line 1,

XLR connector (see number 11).

11 Microphone/line 1 input, XLR connector - DIP

switch settings for: chime, PTT (push to talk), mic/

line, speech filter, and phantom power (see number

12). Input is wired in parallel with microphone/

line 1, Euro style pluggable screw terminal connector

(see number 10).

12 DIP switch for microphone/line 1 and microphone/

line 2 (see numbers 10 and 11, and 13 respectively).

13 Microphone/line 2 input, XLR connector - DIP

switch settings for speech filter, mic/line, VOX, and

phantom power (see number 12).

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Description

en | 11

14 15

18 19 20

figure 2.3: Rear panel

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Description

en | 12

Intentionally left blank

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Installation

en | 13

Installation

3.3

Check settings/connections

1 Connect an y additional equipment (see section 4.1

and 4.2).

3.1

Unpack unit

2 Check the settings (see section 4.3).

1 Remove the unit from the box, and discard the

packaging material according to local regulations.

2 Use your fingernails to carefully peel off the

protective plastic film from the label holders. Do not

use sharp or pointed objects.

3.4

Connect unit to mains

Caution

Potential equipment damage. Before

connecting power, always check the voltage

indicator plate at the rear of the unit.

3.2

Install unit in rack (optional)

The Plena Mixer Amplifier is intended for tabletop use,

but you can also mount the unit in a 19" rack (see

figure 3.1).

1 Make sure the power switch on the front of the unit

is set to Off.

2 Connect the power cord to the mains connector and

plug it into the mains outlet.

If you mount the unit in a rack, you must:

•

ensure that it does not exceed the overheating

temperature (45 °C ambient).

use the included Bosch mounting brackets

(LBC 1901/00).

remove the 4 feet from the bottom of the unit.

figure 3.1: Installing the unit in a rack

figure 3.2: Power connection and voltage selector

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Installation

en | 14

Intentionally left blank

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Connections and settings

en | 15

Connections and settings

Note

4.1

Connecting inputs

When connecting an unbalanced line level

(200 mV) signal to the microphone/line input,

connect it as follows: Signal to pin 2, pin 1 and

pin 3 to ground.

4.1.1 Priority microphone (input 1)

The priority microphone (or a generic call station) that

can be used with push to talk (PTT) should be

connected to “microphone/line 1 input”. The PTT

mode can be activated by setting the DIP switch (12) at

the rear of the unit. Microphone/line 1 input has

priority over all other microphone/line inputs.

If, however, the “Tel. emergency/100V input” receives a

signal, all inputs including microphone/line 1 input will

be overruled.

The microphone/line 1 input has two connectors wired

in parallel:

•

an XLR connector (for a 3 pole microphone), and

a Euro style pluggable screw terminal connector.

figure 4.1: XLR connector only

The Euro style pluggable screw terminal connector has

a trigger input, which can be used in combination with

the Euro and XLR connector.

The priority microphone can be connected to the

microphone/line 1 input as follows:

•

XLR connector only. See figure 4.1.

XLR connector with trigger. See figure 4.2.

Euro connector with trigger. See figure 4.3.

Euro connector only (without trigger).

figure 4.2: XLR connector with trigger

Note

If a microphone is connected to both the XLR

connector and the Euro connector for the

microphone/line 1 input, the input signals will be

added together.

Set the DIP switch settings next to the XLR connector

for microphone/line 1, as required. See section 4.3.

figure 4.3: Euro connector with trigger

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Connections and settings

en | 16

4.1.2 Secondary microphone (input 2)

Connect a secondary microphone to “microphone/line

input 2”. See figure 4.4.

4.1.3 Additional microphones

(inputs 3 and 4)

Connect additional microphones to microphone/line

inputs 3 and 5 as required. See figure 4.4. These

microphones will mix with the background music.

Microphone/line input 2 has a DIP switch (12) at the

rear of the unit for setting the VOX mode. If the DIP

switch is set to VOX, the microphone/line input will

automatically be switched when a signal is sensed at the

microphone/line 2 input. For example, when someone

speaks into the microphone, other sound will either be

muted or ducked, depending on the setting of the

ducking level control at the rear of the unit. See

section 4.3.

Set the DIP switch settings next to the XLR connector

for microphone/lines 3 and 4, as required. See

section 4.3.

The Tel. emergency/100V input and Microphone/line

input 1 all have priority over the Microphone/line

input 2. Therefore, any signal received on any one of

these inputs will always be heard regardless of the

ducking level control setting for Microphone/line

input 2.

Set the DIP switch settings next to the XLR connector

as required. See section 4.3.

figure 4.4: Connecting microphone inputs

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

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.

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.

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.

Caution

Never connect telephone lines and a 100 V

signal to the Euro style connector at the same

time.

4 .1 .4 .1

Connecting 100 Volt input signal

Connect the 100 Volt input signal as shown in

figure 4.5.

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.

figure 4.5: Connecting 100 Volt input signal

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Connections and settings

en | 18

4.1.4.2

Connecting telephone lines

Connect the telephone lines as shown in figure 4.6.

Caution

A connection to a telephone network must

always be made via a telephone coupler that

provides adequate isolation between the

telephone network (PBX) and the Plena system.

The telephone coupler must also meet all

relevant requirements for this type of

communication equipment as imposed by law

and/or responsible telecommunication

organizations in the country of use. Never try to

make a direct connection between the telephone

network and the mixer amplifier.

figure 4.6: Connecting emergency telephone lines

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Connections and settings

en | 19

4.1.5 Music source inputs

When using a CD player, tuner or other auxiliary

device for background music, connect the line-out

connectors of the music source to the appropriate line-in

connectors of the mixer amplifier.

figure 4.7: Connecting music source inputs

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Connections and settings

en | 20

4.2

Connecting outputs

4.2.3 Master output

This output carries the master output of the mixer at line

level (1 V balanced).

4.2.1 Main output

Connect speakers to the 100 V or 8 Ohm terminal on

the Euro style pluggable screw terminal connector (17)

at the rear of the unit.

To hear music only set the internal jumper.

Use the music output connector (8) to provide a

dedicated music out source for another device. For

example, the music master output can be connected to a

telephone coupler, so that callers can listen to music

when they are put on hold (see figure 4.8).

Also see section 4.2.4 “Connecting speakers”.

4.2.2 Call only

Connect speakers to the 100 V terminal on the Euro

style pluggable screw terminal connector (17) at the rear

of the unit.

To select the dedicated music out source, set the internal

jumper. Only the music inputs (5, 6, and 7) will be

audible. All other inputs, including the Tel.

Also see section 4.2.4 “Connecting speakers”.

emergency/100V input will not be sent to this output.

figure 4.8: Connecting music source inputs

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Connections and settings

en | 21

4.2.4 Connecting speakers

4.2.4.2 Low impedance loudspeakers

4.2.4.1 Constant voltage loudspeakers

figure 4.10: Connecting speakers

figure 4.9: Connecting speakers

Connect low impedance loudspeakers to the 8 Ohm/0

terminals. This output can deliver the rated output

power into an 8 Ohm load. Connect multiple

loudspeakers in a series/parallel-arrangement to make

the combined impedance 8 Ohm or higher. Check the

loudspeaker polarity for in-phase connection.

The mixer amplifier can drive 100 V constant voltage

loudspeakers.

Connect the loudspeakers in parallel and check the

loudspeaker polarity for in-phase connection. The

summed loudspeaker power should not exceed the

rated amplifier output power.

You can use the Call Only output for 3-wire remote

volume control override. You can also use this output as

an extra zone where announcements can be heard, but

not music.

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Connections and settings

en | 22

4.3

Unit settings

4.3.1 Rear panel settings

The unit can be quickly set-up for operation by setting

the following controls at the rear of the unit:

•

DIP switches

Rotary dials.

See the following tables for an overview of the settings

and typical examples of their use.

table 4.1: DIP switch settings

DIP switch

Chime

(mic/line 1)

Off

Typical example (On)

Chime will be sounded at the

beginning of an announcement.

Chime will not be sounded Announcement of train

at the beginning of an

announcement.

departure time.

PTT “Push to talk”

(mic/line 1 only)

This input is muted when the push Push to talk off. The signal

Users can have private

to talk contact is open. When the

push to talk contact is closed:

will be mixed with the other conversations during live

mic/line signals.

broadcasts (for example,

with an all call call-

station, such as the

PLE-1CS).

•

this input is available for

speech.

Microphone 1 will mix with

the background music or

the other microphones in

the selected zones.

•

a chime will sound, if selected.

the music and other mic/line

inputs will be reduced in

volume to the level set by the

ducking level control knob.

Line

Input signal from line.

Input signal from

microphone.

Depends on set-up.

Speech filter

Enhances clarity of speech, by

cutting-off the lower frequencies

of the signal.

Speech filter inactive.

Use for announcements

Phantom power

Provides power to condenser

microphones.

Phantom power

unavailable.

Enable phantom power if

you use electret or

condenser microphones.

Use to make casual

announcements (such as

announcing the winner of

a competition) while

temporarily suppressing

the background music to

an adjustable ducking

level.

VOX

(mic/line 2 only)

Temporarily suppresses the

background music to an

adjustable “ducking level” (see

VOX inactive.

Microphone 2 will mix with

the background music or

table 4.2) while you speak into the the other microphones in

microphone. The VOX mode is

normally used with hand-held

microphones such as the

LBC 2900/15. Background music

and announcements will be heard

in the selected zones. A chime is

not available in this mode.

the selected zones.

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Connections and settings

en | 23

table 4.2: Rotary controls

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

Set the ducking level control to

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,

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.

Attenuates the emergency announcement or signal.

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

reasons, the volume of the emergency

background music.

Telephone

emergency/100V

volume control

Set the volume of the emergency

announcement to a higher level

when the system is being used in

large open areas.

announcement or signal cannot be fully set to zero.

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.

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Connections and settings

en | 24

4.3.2 Pin settings and labelling

Users can create custom labels for the: microphone/line

inputs, description of the music sources, and audio

output zones 1 and 2. These labels can be attached to

the mixer amplifier at position numbers 2 and 3 (see

figure 2.2). Colored pins can also be inserted at various

positions around the dial controls to indicate the favorite

settings for a particular application.

The pins are engineered in such a way that they cannot

be taken out by hand. This is to prevent tampering. The

pins are intended to be inserted once, during installation

of the unit. The silver pins should be used to indicate

the preferred settings of the unit. The red pins can

optionally be used to indicate the maximum setting of a

knob.

If these settings have to be changed, use a pair of soft-

tipped pliers to carefully remove the pins. If you do not

have a pair of soft-tipped pliers, you can use ordinary

pliers instead, but first place some plastic tape on the

tips of the pliers to prevent damaging the front of the

unit.

To remove the clear plastic covers in front of the labels:

1 Carefully insert a small screwdriver into the cut-out

at the bottom of the plastic cover.

2 Gently lift the cover, and bend it in the middle. Take

care not to force the cover or the front panel.

To reattach the plastic covers with paper labels:

1 Insert the paper label into the holder at the front of

the unit.

2 Pick up the cover, and then bend it slightly in the

middle by hand.

3 Fit the cover into the slot at the front of the unit, and

then gently release the cover, making sure that the

paper label stays in place.

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Operation

en | 25

Operation

5.1

Switch on and off

5.1.1 Switch on

Caution

Potential equipment damage. Before applying

power, always check the voltage indicator plate

at the rear of the unit.

1 Set the power button (1) on the front of the unit to

On - pushed in (see figure 5.1).

5.1.2 Switch off

Set the power button (1) on the front of the unit to Off -

popped out (see figure 5.1).

figure 5.1: Front panel

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Operation

en | 26

5.2

Microphone/line controls

5.5

Output controls

5.5.1 Master volume control

Use the master volume control dial (5) to collectively

control the sound level of all outputs, except the

emergency announcement/signal.

Note

Users can create custom labels for the

microphone/line inputs and description of the

music sources. These labels can be attached to

the mixer amplifier at position numbers 2 and 3

(see figure 5.1). Colored pins can also be

inserted at various positions around the dial

controls to indicate the favorite settings for a

particular application.

Use the volume controls (7) to individually control the

sound level of microphone/line inputs 1 through 4.

5.3

Music controls

5.3.1 Source selection

Use the music source selector (8) to select one of the

connected music sources.

5.3.2 Volume control

Use the music source volume control (9) to control the

sound level of the selected music source.

5.4

Tone control

The tone controls are not standard bass and

treble controls: they can be used as a traditional tone

control with high and low control, but also have a

powerful contour that addresses problems found in real

situations.

The tone control for the low frequencies boosts deep

bass first without making the sound boomy, and cuts

rumble without loosing warmth in the low frequencies.

Use the Hi (high) and Lo (low) tone controls (see

figure 5.1, numbers 4 and 10) to change the tone.

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Technical data

en | 27

Technical data

6.1.5 Mic/line input 4 x

Input 1 (Push-to-talk contact with ducking

functionality)

5-pin Euro style, balanced, phantom

3-pin XLR, balanced, phantom

Input 2-4 (VOX with ducking functionality on input

3-pin XLR, balanced, phantom

Sensitivity

1 mV (mic); 200 mV (line)

Vox sensitivity

-15 dB (attack time 20 ms; release time 4 s)

Impedance

>1 kohm (mic); >5 kohm (line)

S/N (flat at max volume)

63 dB (mic); >70 dB (line)

S/N (flat at min volume/muted)

>75 dB

Dynamic range

100 dB

S/N (flat at max volume)

>63 dB (mic); >70 dB (line)

S/N (flat at min volume/muted)

>75 dB

6.1

Electrical

6.1.1 Mains power supply

Voltage

230 VAC, 10%, 50/60 Hz

Inrush Current PLE-1MA030-EU

4.5 A

Inrush Current PLE-1MA060-EU

5 A

Inrush Current PLE-1MA120-EU

10 A

6.1.2 Power consumption

PLE-1MA030-EU

100 VA

PLE-1MA060-EU

200 VA

PLE-1MA120-EU

400 VA

CMRR

>40 dB (50 Hz to 20 kHz)

Headroom

>25 dB

Speech filter

-3 dB @ 315 Hz, high-pass, 6 dB/oct

Phantom power supply

16 V via 1.2 kohm (mic)

6.1.3 Performance

Frequency response

50 Hz to 20 kHz (+1/-3 dB @ -10 dB ref. rated

output)

Distortion

<1% @ rated output power, 1 kHz

Bass Control

Max -12/+12 dB (frequency is level dependent)

Treble Control

Max -12/+12 dB (frequency is level dependent)

6.1.4 RJ-45 input 1 x

Wall panel input

For PLE-WP3S2Z

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Plena Mixer Amplifier | Installation and User Instructions | Technical data

en | 28

6.1.6 Music inputs 3x

Connector

Cinch, stereo converted to mono

6.1.10 Loudspeaker output 8 ohm*

Sensitivity

Connector

200 mV

Impedance

22 kohm

Screw terminal, floating

PLE-1MA030-EU

16 V (30 W)

S/N (flat at max volume)

>70 dB

PLE-1MA060-EU

22 V (60 W)

S/N (flat at min volume/muted)

>75 dB

PLE-1MA120-EU

31 V (120 W)

Headroom

>25 dB

6.2

Mechanical

Dimensions (H x W x D)

100 x 430 x 270 mm (19" wide, 2U high)

Mounting

Stand-alone, 19" rack

Color

6.1.7 Emergency / telephone 1 x

Connector

7-pin, Euro style pluggable screw connector

Sensitivity tel

100 mV – 1 V adjustable

Charcoal

Sensitivity 100V

10 V – 100 V adjustable

Weight (PLE-1MA030-EU)

Approx. 5 kg

Impedance

>10 kohm

Weight (PLE-1MA060-EU)

Approx. 8.5 kg

S/N (flat at max volume)

>65 dB

Weight (PLE-1MA120-EU)

Approx. 10.5 kg

VOX

threshold 50 mV; attack time 150 ms; release time 2 s

6.3

Environmental

Operating temperature

-10 to +45 ºC

6.1.8 Master/music output 1 x

Connector

3-pin XLR, balanced

Nominal level

1 V

Storage temperature

-40 to +70 ºC

Relative humidity

<95%

Impedance

<100 ohm

Acoustic noise level of fan (PLE-1MA120-EU)

<33 dB SPL @ 1 m

6.1.9 Loudspeaker outputs 100 V

Connector

Screw connector, floating

Max / rated PLE-1MA030-EU

45 W / 30 W

Max / rated PLE-1MA060-EU

90 W / 60 W

Max / rated PLE-1MA120-EU

180 W / 120 W

Bosch Security Systems | 2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

For more information visit

www.boschsecuritysystems.com

Data subject to change without notice

2007-11 | PLE-1MA030-EU, PLE-1MA060-EU, PLE-1MA120-EU en

Download from Www.Somanuals.com. All Manuals Search And Download.

Belkin Computer Hardware F1DE083 User Manual
Belkin Switch F1DB102P B User Manual
Berkel Grinder E 222 User Manual
Bionaire Humidifier BCM6100 User Manual
Blaupunkt Car Stereo System RCR 148 User Manual
Bowflex Fitness Electronics 003 3171 030309B User Manual
Carrier Air Conditioner 38GC User Manual
Casio Watch 1949 User Manual
CDA Burner HCG301 User Manual
Chauvet Camera Accessories LED PAR 64 36B User Manual