Bosch PLN?2AIO120 BGM Guide

Communications Systems | PLN‑2AIO120 BGM/Paging System
The Plena BGM/paging system is the versatile all-in-one
solution to cover all needs for background music (BGM),
making announcements and paging people. This high-
performance yet affordable unit is very easy to install and
operate.
It is typically used in shops, supermarkets, restaurants,
bars, schools, canteens, gyms, garages and other places
where BGM creates the right atmosphere, and also
amplified speech needs to be heard clearly.
Functions
DVD/CD Player
The DVD/CD player provides up to a whole workweek of
high quality uninterrupted music playback from a single
MP3 DVD. It supports music organized on a disk in
multiple folders. The player will automatically search and
play all playable formats on a disk, and has repeat mode.
Navigation is done on the multi lingual on screen display.
The unit plays normal audio and video DVD/CDs, as well
as long-play MPEG2, MP3 encoded CDs. It can also play
MP3s and display JPEGs on CD-R, DVD-ROM, DVD-R. MP3-
files with bit-rates from 32 kbps to 320 kbps, mono/
stereo/joint-stereo, and both continuous bit-rates (CBR)
and variable bit-rate (VBR) are supported. Component,
composite, and S-Video connectors are available for video
output. The unit plays PAL and NTSC content in
progressive scan as well as interleaved.
The disc part of the unit also has a TOSlink optical output
that supports S/P DIF as well as DST and Dolby Digital. It
is possible to output S/P DIF regardless of the source and
choose left/right, surround channels of Low frequency
effects on this output.
Basic controls are on the unit itself, while navigation and
configuration is done with the remote control and the on
screen display. The unit supports most major languages,
and it is possible to set regional preference, such as
subtitle language preference.
FM/AM Tuner
The digitally controlled FM/AM tuner uses a frequency
synthesizer for accurate capture of radio stations and has
10 presets for each waveband to store favorite programs.
An auxiliary (music) input and tape output provide
connections for external equipment.
Microphone Inputs
The announcement part of the unit has three balanced
microphone inputs. Microphone input 1 has a DIN socket
on the rear for a priority microphone (e.g. the
LBB 1950/00) with selectable priority, a two-tone chime
to precede a priority announcement, a speech filter,
phantom power. It also has a phone jack connector on the
PLN‑2AIO120 BGM/Paging System
▶All-in-one solution for background music and paging
▶DVD/CD-player for video and audio
▶Supports MP3, JPEG, and multi-format video outputs
▶FM/AM tuner with 10 presets and digital control
▶Dual-zone 120 W mixer amplifier with volume control
per zone
▶Selectable priority and VOX switching on microphone
input 1
▶Optional 2-tone chime to precede announcements
▶Remote control
www.boschsecurity.com

2 | PLN‑2AIO120 BGM/Paging System
front with selectable VOX activation for a dynamic
microphone, such as the LBC 2900/15, as well as presets
for music ducking level and chime volume. Microphone
inputs 2 and 3 have XLR sockets with selectable phantom
power, and are mixed with the BGM. All microphone
inputs and the music source have their own volume
control, with a shared bass and treble tone control and a
shared master volume control.
Outputs
The powerful 120 W output section has two transformer-
isolated, 100 V constant voltage outputs for driving 100 V-
loudspeakers in two separate zones. The 100 V-technique
reduces line losses on longer distances and allows easy
parallel connection of multiple loudspeakers. Both zones
can be selected individually from the front panel, and the
output level for each zone can be individually set. Each
zone also has a low-voltage output for connecting 8 ohm,
transformerless loudspeakers (consumer-type). There is a
separate, 100 V call-only output for addressing an area
where announcements are necessary, but BGM is not
desired. A voltage-free call-active contact is available for
overriding local volume controls during priority calls, and
for other purposes. An LED meter monitors the output.
Controls and indicators
Front
•Power on/off
•Disc eject key
•Disc previous key
•Disc play key
•Disc next key
•Disc stop key
•Disc display
•Disc repeat key
•Disc pause key
•Tuner memory keys 1-5 and 6-10
•Tuner shift key to select memory 1-5 or 6-10
•Tuner program key
•Tuner scan key
•Tuner FM/AM selection key
•Tuner frequency up/down keys
•Tuner display
Back
•Mains voltage selection
•Chime selection DIP switch
•Phantom power switch
Interconnections
Back
•FM antenna input
•AM antenna input
•Tape output (mono, 2 x)
•Aux input (stereo converted to mono)
•Call only output
•Zone 1 output
•Zone 2 output
•Call active output
•Component video output (3 x)
•Composite video output
•Digital optical output
•Earth connection screw
•Mains connection
Certifications and Approvals
Region Certification
Europe CE
Safety acc. to EN 60065
Immunity acc. to EN 55103-2
Emission acc. to EN 55103-1
Parts Included
Quantity Component
1 PLN-2AIO120 PLENA BMG/Paging System
1 Power cord
1 Remote control
1 Installation and User Instructions
1 Plena CD
Technical Specifications
Electrical
Mains power supply
Voltage 230/115 VAC, ±10%, 50/60 Hz
Inrush current 8 A @ 230 VAC / 16 A @ 115 VAC
Max power consumption 400 VA
Max/rated output power 180 W / 120 W
Performance
Frequency response 60 Hz to 18 kHz (+1/‑3 dB @ ref. rated out-
put)
Distortion <1% @ rated output, 1 kHz
Bass control -8/+8 dB @ 100 Hz
Treble control -8/+8 dB @ 10 kHz
Mic input 1 x
Connectors 5-pin DIN, balanced, 6.3 mm jack
Sensitivity 1 mV
Impedance >1 kohm
S/N (flat at max volume) 63 dB
S/N (flat at min volume/
muted)
75 dB
Headroom 25 dB
Speech Filter -3 dB @ 315 Hz, high-pass, 6 dB/oct
Phantom power supply (on
5‑pin DIN)
12 V

PLN‑2AIO120 BGM/Paging System | 3
Mains power supply
VOX (on 6.3 mm jack) Attack time 200 ms, release time 2 s, duck-
ing level adjustable
Mic input 2 x
Connector 3-pin XLR, balanced
Sensitivity 1m V
Impedance >1 kohm
S/N (flat at max volume) 63 dB
S/N (flat at min volume/
muted)
75 Db
Headroom 25 dB
Phantom power supply 12 V
Auxiliary input
Connector Cinch, converted to mono
Sensitivity 200 mV
Impedance 22 kohm
S/N (flat at max volume) 70 dB
S/N (flat at min volume/
muted)
75 dB
Headroom 25 dB
Tuner
Tuning range FM 87.5 to 108 MHz (Europe, 50 kHz;
Asia / USA, 100 kHz)
AM 531 to 1602 kHz(Europe, 9 kHz)
530 to 1610 kHz(Asia / USA, 10 kHz)
FM sensitivity 2 µV (26 dB S/N)
AM sensitivity 30 µV (20 dB S/N)
Frequency response 30 Hz to 15 kHz (+1 / -3 dB, FM)
Distortion <1%
S/N >63 dB (1 mV, FM)
Tuner output 1 x
Connector Cinch, (RCA) stereo
Nominal level 200 mV
DVD-Player
Frequency response 20 Hz to 20 kHz (+1/-3 dB)
Distortion <0.1%
S/N >96 dB
General
MP3 bit rates CBR 32 kbps to 320 kbps and VBR, mono
and stereo
Data buffer shock protec-
tion
16 MB
DVD/CD player output 1 x
Optical output TOSlink (PCM, multi channel)
Supported Formats DVD, CD, (re-)writables
MP3, MP4, JPEG
Video outputs
Component connectors 3 x cinch
Mains power supply
Composite connector 1 x cinch
S-video connector 1 x mini-DIN
General
Data buffer 8 MB (shock protection)
Lifetime >10.000 CD play cycles
Max number of titles 999 (MP3), 99 (audio CD)
Tape output
Connector Cinch, 2x mono
Nominal level 350 mV
Impedance 1 kohm
Loudspeaker outputs 6 x 2
Connector Screw, floating
100 V outputs 120 W rated (all zones together)
Zone output attenuation
taps
100/70/50/35/25/18 V for
0/‑3/‑6/‑9/‑12/‑15 dB
(120/60/30/15/8/4 W)
8 ohm outputs 18 V (40 W rated per zone)
Call-active 1 x
Connector Screw
Relay Voltage free, max 100 V, 2 A
Mechanical
Dimensions (H x W x D) 144 x 430 x 320 mm
(19" wide, 3U high)
Weight Approx. 11.6 kg
Mounting Standalone (rack mounting not recommend-
ed)
Color Charcoal
Environmental
Operating temperature -10 ºC to +45 ºC (14 ºF to +113 ºF)
Storage temperature -40 ºC to +70 ºC (-40 ºF to +158 ºF)
Relative humidity <95%
Acoustic noise level of fan <35 dB SPL at 1 m, temperature controlled
Ordering Information
PLN‑2AIO120 BGM/Paging System
all-in-one solution to cover background music
(BGM), announcements and paging people
PLN-2AIO120
www.boschsecurity.com

4 | PLN‑2AIO120 BGM/Paging System
Americas:
Bosch Communications Systems
12000 Portland Avenue South
Burnsville, Minnesota 55337, USA
Phone: [phone]
Fax: [phone]
[email protected]
www.boschsecurity.com
Europe, Middle East, Africa:
Bosch Security Systems B.V.
P.O. Box 80002
5600 JB Eindhoven, The Netherlands
Phone: + 31 40 2577 284
Fax: [phone]
[email protected]
www.boschsecurity.com
Asia-Pacific:
Robert Bosch (SEA) Pte Ltd
11 Bishan Street 21
Singapore 573943
Phone: [phone]
Fax: [phone]
[email protected]
www.boschsecurity.com
Represented by
© Bosch Security Systems Inc. 011 | Data subject to change without notice
T3027178379 | Cur: en-US, V24, 27 Jan 2011

Installation and User Instructions
PLN-2AIO120en
Plena All-in-One 120 Watt

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Plena All-in-One 120 Watt | Installation and User Instructions | Important Safeguards en | 2
Important safeguards
Before installing or operating this product, always read
the Important Safety Instructions, which are available as
a separate document (9922 141 7014x).
These instructions are supplied together with all
equipment that can be connected to the mains.
Thank you for choosing a Bosch Security Systems
product.

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Plena All-in-One 120 Watt | Installation and User Instructions | Table of contents en | 3
Table of contents
Important safeguards ...................................................................................................................................................2
Table of contents ...........................................................................................................................................................3
1. Introduction ....................................................................................................................................................................5
1.1 Purpose .......................................................................................................................................................................5
1.2 Digital document .......................................................................................................................................................5
1.3 Intended audience ....................................................................................................................................................5
1.4 Alerts ..........................................................................................................................................................................5
1.5 Signs ...........................................................................................................................................................................5
1.5.1 Note signs .............................................................................................................................................................5
1.5.2 Caution Warnings and Dangers signs ...............................................................................................................5
1.6 Conversion tables .....................................................................................................................................................6
2. System overview ...........................................................................................................................................................7
2.1 Plena ...........................................................................................................................................................................7
3. Equipment .......................................................................................................................................................................9
3.1 Introduction ...............................................................................................................................................................9
3.2 Contents of box .........................................................................................................................................................9
3.3 Controls, connectors and indicators .....................................................................................................................11
3.3.1 Front panel .........................................................................................................................................................11
3.3.2 Rear panel ..........................................................................................................................................................12
3.4 Installation ...............................................................................................................................................................13
3.4.1 Unpack unit ........................................................................................................................................................13
3.4.2 Install unit ...........................................................................................................................................................13
3.4.3 Connect unit to mains .......................................................................................................................................13
3.4.4 External settings and connections ....................................................................................................................14
3.4.5 Tuner region selection ......................................................................................................................................14
3.4.6 Priority/VOX activated microphone ..............................................................................................................14
3.4.7 Microphones 2 and 3, auxiliary inputs and tape output ...............................................................................15
3.4.8 Loudspeakers .....................................................................................................................................................16
3.4.9 Internal settings ..................................................................................................................................................17
3.4.10 Power ..................................................................................................................................................................18
4. Switch on and off ....................................................................................................................................................... 19
4.1 Switch on .................................................................................................................................................................19
4.2 Switch off .................................................................................................................................................................19
5. Operation ..................................................................................................................................................................... 21
5.1 Operation of mixer amplifier ................................................................................................................................21
5.1.1 Source selection .................................................................................................................................................21
5.1.2 Volume and tone control ..................................................................................................................................21
5.1.3 Zone selection ....................................................................................................................................................21
5.2 Operation of tuner ..................................................................................................................................................22
5.2.1 Station selection .................................................................................................................................................22
5.2.2 Programming ......................................................................................................................................................22
5.3 Operation of DVD-player ......................................................................................................................................22
5.3.1 Playback and track selection ............................................................................................................................22
5.4 Creation of MP3 CD-Rs .........................................................................................................................................23

Plena All-in-One 120 Watt | Installation and User Instructions | Table of contents en | 4
Bosch Security Systems | 2008-09 | 9922 141 50762 en
6. Remote control ........................................................................................................................................................... 25
6.1 Overview of controls ..............................................................................................................................................25
6.2 Setup .........................................................................................................................................................................27
6.2.1 System setup page ............................................................................................................................................28
6.2.2 Language setup page .........................................................................................................................................29
6.2.3 Audio setup page ...............................................................................................................................................30
6.2.4 Video setup page ...............................................................................................................................................31
7. Technical data ............................................................................................................................................................. 33
7.1 Electrical ..................................................................................................................................................................33
7.2 Performance ............................................................................................................................................................33
7.3 Inputs ........................................................................................................................................................................33
7.4 Tuner ........................................................................................................................................................................33
7.5 DVD player .............................................................................................................................................................34
7.6 Outputs .....................................................................................................................................................................34
7.7 Environmental conditions .....................................................................................................................................34
7.8 General .....................................................................................................................................................................34

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Plena All-in-One 120 Watt | Installation and User Instructions | Introduction en | 5
1 Introduction
1.1 Purpose
These Installation and User Instructions provide
information on installing, configuring, and operating the
Plena All-in-One 120 Watt.
1.2 Digital document
The Installation and User Instructions are also available
as a digital document in the Adobe Portable Document
Format (PDF). All references to pages, figures, tables,
etc. in this digital document contain hyperlinks to the
referenced locations.
1.3 Intended audience
These Installation and User Instructions are intended
for installers and users of a Plena system.
1.4 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:
•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.
•Warning
Persons can be (severely) injured, or the equipment
can be seriously damaged, if the alert is not
observed.
•Danger
Not observing the alert can result in death.
1.5 Signs
1.5.1 Note signs
The signs used in combination with Notes provide extra
information about the Note. See the following
examples:
1.5.2 Caution Warnings and Dangers
signs
The signs used in combination with Caution, Warnings,
and Dangers indicate the type of hazard present. See the
following examples:
Note
General sign for notes.
Note
Consult the indicated source of information.
Caution, Warning, Danger
General sign for cautions, warnings and
dangers.
Caution, Warning, Danger
Risk of electric shock.
Caution, Warning, Danger
Risk of electrostatic discharge.

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Plena All-in-One 120 Watt | Installation and User Instructions | Introduction en | 6
1.6 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 = 25.4 mm 1 mm = 0.03937 in
1 in = 2.54 cm 1 cm = 0.3937 in
1 ft = 0.3048 m 1 m = 3.281 ft
1 mi = 1.609 km 1 km = 0.622 mi
table 1.2: Conversion of units of mass
1 lb = 0.4536 kg 1 kg = 2,2046 lb
table 1.3: Conversion of units of pressure
1 psi = 68.95 hPa 1 hPa = 0.0145 psi
Note
1 hPa = 1 mbar.
F9
5
---C32+=
C5
9
---F32–()=

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Plena All-in-One 120 Watt | Installation and User Instructions | System overview en | 7
2 System overview
2.1 Plena
The Plena All-in-One 120 Watt is part of the Plena
product range. Plena provides public address solutions
for places where people gather to work, worship, trade,
or to relax. It is a family of system elements that are
combined to create public address systems tailored for
virtually any application.
The 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
• a charger
• a loop amplifier
The various elements are designed to complement each
other thanks to matched acoustical, electrical and
mechanical specifications.

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Plena All-in-One 120 Watt | Installation and User Instructions | Equipment en | 9
3 Equipment
3.1 Introduction
The Plena All-in-One 120 Watt is the all-in-one solution
for making announcements, paging people and playing
background music (BGM). It comprises of:
• an integrated 120 W mono mixer amplifier,
• a DVD-player that can play DVDs, audio-CDs, as
well as long play MP3-encoded discs), and
• a digitally controlled AM/FM-tuner for receiving
radio stations.
Up to three microphones and an auxiliary source signal
can be connected to the mixer amplifier and mixed,
with priority or VOX switching available for the main
microphone. The output signal can be switched to two
different zones with individual attenuation control. A
third zone receives only priority calls and no music.
See figure 3.1 (on the next page) for a schematic
overview of the Plena All-in-One 120 Watt.
3.2 Contents of box
The packaging box contains the following contents:
• PLN-2AIO120 (x1)
• Power cord (x1)
• Remote control (x1)
• AM loop antenna (x1)
• Antenna plug (x1)
• Plena CD with Installation and User Instructions
(x1)

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Plena All-in-One 120 Watt | Installation and User Instructions | Equipment en | 10
figure 3.1: Schematic overview of the Plena All-in-One 120 Watt

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Plena All-in-One 120 Watt | Installation and User Instructions | Equipment en | 11
3.3 Controls, connectors and
indicators
3.3.1 Front panel
See figure 3.2 for an overview of the controls and
indicators.
1 VU-meter (LED's for -20, -6, 0 dB and Power On)
2 DVD pause key
3 DVD eject key
4 DVD mode key
5 DVD previous key (press once to select previous
chapter or track; press and hold to fast reverse)
6 DVD play key
7 DVD display
8 DVD next key (press once to select next chapter or
track; press and hold to fast forward)
9 DVD stop key
10 Tuner preset memory keys 1-5 and 6-10
11 Tuner display
12 Tuner frequency up/down keys (press once to fine
tune; press and hold to search for channels)
13 Tuner FM/AM selection key
14 Tuner scan key
15 Tuner memory key
16 Tuner shift key to select memory 1-5 or 6-10
17 Microphone 1 priority active LED
18 Output attenuator for zone 2
19 Zone 2 selection button
20 Output attenuator for zone 1
21 Zone 1 selection button
22 Master volume control
23 Tone control (bass)
24 Tone control (treble)
25 Music source volume control
26 Music source selection button (DVD/tuner - Aux)
27 Microphone 3 volume control
28 Microphone 2 volume control
29 Microphone 1 input (6.3 mm phone jack
socket/balanced)
30 Microphone 1 volume control
31 Power button
figure 3.2: Front panel
Plena BGM/Paging System
Power
000
00
Zone1 Zone2
DVD/Tuner
Aux
Select
-12 -12
-9 -9
-6 -6
-3 -3
0dB 0dB
-15 -15
Mode
Eject
M1/6 M2/7 M3/8 M4/9 M5/0 Shift Memory
Scan
AM/FM
1 2
3
0 dB
-6 dB
-20 dB
31
12 3 4 6 7 11 12
29 25 23 22 20242728 21 18 17192630
5 8 9 10
13
14
15
16

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Plena All-in-One 120 Watt | Installation and User Instructions | Equipment en | 12
3.3.2 Rear panel
See figure 3.3 for an overview of the connectors and
switches:
1 FM antenna input
2 AM antenna input
3 Loudspeaker output terminal strip
4 SPDIF connection
5 Video outputs (composite, component, and S-video)
6 Y/C connector
7 Mains voltage selector (115V/ 230V)
8Typeplate
9 Mains connection (3-pole)
10 Mains fuse
11 Earth connection screw
12 Tape output (for 2x Cinch-connectors)
13 Auxiliary input (for 2x Cinch-connectors)
14 Microphone 3 input (for XLR-connector)
15 Microphone 2 input (for XLR-connector)
16 Microphone 1 input (for 5-pin DIN-connector)
17 Ducking level control (see section 3.4.6)
18 Chime level control
19 Configuration switches (1-7)
figure 3.3: Rear panel
CallOnly CallActive
Zone 1 Ca ll/B G M Zone 2 C a ll/B G M
100V0 100V 0 100V008 08
Switch
1
2
3
4
5
6
7
Off(0)
Mix
Mix
Chimeoff
Speechfilter
Phantomoff
Phantomoff
Phantomoff
Mic.
1rear
1front
1rear
1
1rear
2
3
On(1)
Priority
Vox
Chimeactive
Flat
Phantomon
Phantomon
Phantomon
FM AM
1
C hime n Ducking
234567
3
2
+
-
1
GND
Aux In
L
R
CVBSSDDIF
Video output
B-Y Y/C
Yc R-Y
115V 230V
Apparatus delivered
connected for 230V~
Ratedinput
power:400VA
Line fuse T2.5L250V(230V~)
T5L250V(115V~)
T his appara tus mus t be ea rthed
Warning
12
-21-
54
3
19
21 3 7 86
9
10
4 5
18 17 16 15 14 1113 12

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Plena All-in-One 120 Watt | Installation and User Instructions | Equipment en | 13
3.4 Installation
3.4.1 Unpack unit
Carefully peel off the protective plastic film on both
displays. Do not use sharp or pointed objects in order to
avoid scratches. Use your fingernails instead.
3.4.2 Install unit
The Plena All-in-One 120 Watt unit is intended for
table-top use. It can also be put on a shelf, provided that
there is a free space of at least 10 cm on both sides of
and above the unit to ensure proper ventilation. The
unit has a built-in fan that will switch on when the
temperature inside the unit rises. Do not put any other
equipment directly on top of this unit. The ambient
temperature should not exceed 45 °C. Mounting of the
unit in 19”-racks is not recommended as often the
temperature in these racks will exceed 45 °C.
3.4.3 Connect unit to mains
Make sure the voltage selector (115V/ 230V) is
correctly set for the country’s main voltage (see figure
3.5). Make sure the power switch (31) on the front of the
Plena All-in-One 120 Watt is set to Off - not pushed in.
Connect the power cord to the mains connector and
plug it into the mains outlet.
figure 3.4: Installing the Plena All-in-One 120 Watt
M1/6 M2/7 M3/8M4/9
Scan
0
dB
-6
dB
-20
dB
3
2
2
1Select
CD/Tuner
Aux
-12
-9 -6
0dB
-15
-3
-12
-9 -6
0dB
-15
-3
Zone1 Zone2
Master
Power
M5/0
Memory
AM/FM
Plena BGM/Paging System
Repeat
Eject
Caution
Potential equipment damage. Before
connecting power, always check the voltage
selector on the rear panel of the Plena All-in-
One 120 Watt.
figure 3.5: Voltage selector
Warning
115V~ 230V~
Apparatus delivered
connected for 230V~
This apparatus must be earthed
Rated input
power: 400VA
Line fuse T2.5L250V(230V~)
T5L250V(115 V~)
B-Y Y/C
Switch
1
2
3
4
5
6
7
Off(0)
Mix
Mix
Chim
eoff
Speec
hfilter
Phantomoff
Phanto
moff
Phanto
moff
Mic.
1rear
1front
1rear
1
1rear
2
3
On(1)
Priority
Vox
Chim
eactive
Flat
Phanto
mon
Phanto
mon
Phanto
mon
100V 0 100
V 0 100
V 0
0 8 08
Cal
lOnly Zon
e1Call/BGM Zone2Call/BGM Cal
lActive
Warning
AuxIn
FM
Antenna
Chime Ducking
1234567
21
+-
GND
3
1-
43
5
12
115V~ 230V~
Apparatusdelivered
connectedfor230V~
Thisapparatusm
ustb
eearthed
Ratedinput
power:400VA
LinefuseT2.5L250V(230V~)
T5L250V(115V~)
3
CVBS
SDDIF
Videooutput
B-YY/C
Yc R-Y

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Plena All-in-One 120 Watt | Installation and User Instructions | Equipment en | 14
3.4.4 External settings and
connections
Connect antennas
The FM input must be connected to an antenna or cable
network with a COAX cable of 75 Ohm. A connector
for the FM input is provided with the unit. The AM
input can be connected to the loop-antenna delivered
with the unit.
3.4.5 Tuner region selection
To set the tuner region to either ASIA/USA or Europe:
1 Press and hold in:
• the tuner frequency up/down keys (12).
• the tuner memory key (15).
2 Press the power button (31) to switch the system on.
3 Either USA or EUP will be displayed.
4 To toggle between USA or EUP, switch the system
off, and repeat from step 1.
3.4.6 Priority/VOX activated
microphone
Note: Microphone 1 has different operating modes:
Priority mode
Connect the microphone to the DIN-socket at the rear
of the unit and enable the priority mode with
configuration switch 1 (set to ON-position). This
requires a microphone with a priority switch on contacts
4 and 5 of the 5-pin DIN-connector, such as the table-
top microphone LBB 1950. In this mode, microphone 1
will have priority over microphones 2 and 3 and the
background music. Activating this microphone will
mute the other microphones and the music and will also
override zone switching and zone attenuation. Priority
announcements will even be heard in deselected zones.
This mode is normally used for important (emergency)
announcements. You can select a chime signal to
precede such a priority call with configuration switch 3,
a speech filter with configuration switch 4 and phantom
power with configuration switch 5.
figure 3.6: Connecting antennas
Caution
Potential equipment damage. Before switching
on the system, make sure you have read section
3.4.10 “Power”, and section 4 “Switch on and
off”.
Switch
1
2
3
4
5
6
7
Off(0)
Mix
Mix
Chim
eoff
Speec
hfilter
Phantomoff
Phanto
moff
Phanto
moff
Mic.
1rear
1front
1rear
1
1rear
2
3
On(1)
Priority
Vox
Chimeactive
Flat
Phanto
mon
Phanto
mon
Phanto
mon
100V0100
V0 100V0
0808
CallOnly Zone1 Call/BGM Zone2Call/BGM CallActive
Warning
Aux In
FM
Antenna
ChimeDucking
1234567
21
+-
GND
3
1-
43
5
12
115V~230V~
Apparatusdelivered
connectedfor230V~
Thisapparatus mustbe earthed
Rated input
power: 400VA
Linefuse T2.5L250V(230V~)
T5L250V(115V~)
3
CVBS
SDDIF
Video output
B-YY/C
Yc R-Y
figure 3.7 Priority mode connections
Switch
1
2
3
4
5
6
7
Off(0)
Mix
Mix
Chim
eoff
Speec
hfilter
Phanto
moff
Phantomoff
Phanto
moff
Mic.
1rear
1front
1rear
1
1rear
2
3
On(1)
Priority
Vox
Chim
eactive
Flat
Phanto
mon
Phanto
mon
Phanto
mon
100
V0100V 0 100
V 0
0 8 0 8
Cal
lOnly Zon
e1C
all/BGMZon
e2Call/BGMCal
lActive
Warning
AuxIn
FM
Antenna
Chime Ducking
1234567
21
+-
GND
3
1-
43
5
12
115V~ 230V~
Apparatusd
elivered
connectedfor230V~
Thisapparatusmustbeearthed
Ratedinput
power:400VA
Linefuse T2.5L250V(230V~)
T5L250V(115V~)
3
CVBS
SDDIF
Videooutput
B-YY/C
YcR-Y
V 0 100
V0 100
V0
08 0 8
2Call/BGM CallActive
Aux In
ChimeDucking
21
+-
GND
3
1-
43
5
123
CVBS
SDDIFB-Y
Yc R-Y
180 5-pole DIN 180 3-pole XLR
GND
GND

Bosch Security Systems | 2008-09 | 9922 141 50762 en
Plena All-in-One 120 Watt | Installation and User Instructions | Equipment en | 15
VOX mode
Connect the microphone to the phone jack socket at the
front of the unit and enable the VOX mode with
configuration switch 2 (set to ON-position). This mode
will attenuate the background music or microphones 2
and 3 to a predetermined ducking level as long as you
speak into the microphone. Use the ducking level
control (17) at the rear of the unit to set the required
ducking level (see figure 3.3).
The VOX mode is normally used with hand-held
microphones such as the LBC 2900/15 for making
casual announcements, temporarily surpressing the
music. Background music and announcements will be
heard in the selected zones. The front connection for
microphone 1 does not have phantom power for electret
or condenser microphones, so a dynamic microphone
must be used. A chime is not available in this mode, but
you can select the speech filter via configuration
switch 4.
When no priority or VOX mode has been selected,
microphone 1 will just mix with the background music
or the other microphones to the selected zones.
3.4.7 Microphones 2 and 3, auxiliary
inputs and tape output
• Connect microphones 2 and 3 to the rear XLR-
sockets. Enable phantom power for these
microphones with configuration switches 6 and 7, if
you use electret or condenser microphones. These
microphones just mix with the background music
• Connect an auxiliary music source, such as a
tape/cassette recorder or the audio signal of a DVD
player, to the auxiliary Cinch-sockets on the rear.
Stereo signals will be converted to mono.
• The tape output sockets may be used for connection
to a tape/cassette recorder to record microphone
and background music signals. Both sockets provide
the same mono signal.
Note
If the ducking level is set to maximum, the music
volume will be fully attenuated; If the ducking
level is set to minimum, the VOX mode will
operate as a mixer.
figure 3.8: VOX mode connections
M1/6M2/7 M3/8 M4/9
Scan
0
dB
-6
dB
-20
dB
3
2
2
1Select
CD/Tuner
Aux
-12
-9 -6
0dB
-15
-3
-12
-9 -6
0dB
-15
-3
Zone1 Zone2
Master
Power
M5/0
Memory
AM/FM
Plena BGM/PagingSystem
Repeat
Eject
0
dB
-6
dB
-20
dB
3
21
Power
Repeat
Eject
6.3 mm phono jack
figure 3.9: Microphones 2 and 3, auxiliary inputs and
tape output
Switch
1
2
3
4
5
6
7
Off(0)
Mix
Mix
Chim
eoff
Speec
hfilter
Phanto
moff
Phanto
moff
Phanto
moff
Mic.
1rear
1front
1rear
1
1rear
2
3
On(1)
Priority
Vox
Chim
eactive
Flat
Phanto
mon
Phanto
mon
Phanto
mon
100
V 0 100V 0 100
V 0
0 8 08
Cal
lOnly Zon
e1Call/BGM Zon
e2Call/BGMCal
lActive
Warning
AuxIn
FM
Antenna
Chime Ducking
1234567
21
+-
GND
3
1-
43
5
12
115V~ 230V~
Apparatusdelivered
connectedfor230V~
Thisa
pparatusmustbeearthed
Ratedinput
power:400VA
LinefuseT2.5L250V(230V~)
T5L250V(115V~)
3
CVBS
SDDIF
Videooutput
B-Y Y/C
Yc R-Y
8
Aux In
21
+-
GND
3
2
T
3
CVBS
SDDIF B-Y Y/C
R-Y
TAPE

Bosch Security Systems | 2008-09 | 9922 141 50762 en
Plena All-in-One 120 Watt | Installation and User Instructions | Equipment en | 16
3.4.8 Loudspeakers
Loudspeakers are connected via screw terminals,
behind a removable plastic cover for safety. This Plena
System Amplifier has a very flexible output
configuration, allowing for different groups of
loudspeakers.
• Connect 100 V-loudspeakers for zone 1 to the
100 V-/0-terminals of zone 1. The selection button
and the output attenuator for zone 1 (both on the
front panel) control this output. If a low impedance
loudspeaker is used for zone 1, connect it to the 8
Ohm- / 0-terminals of zone 1, but now the output
level will not be affected by the attenuator.
• Proceed in the same way for zone 2.
• Connect 100 V-loudspeakers that should receive
only priority announcements from microphone 1 to
the Call Only 100 V- /0-terminals. For this, the
priority mode must be enabled (see section 3.4.6).
The Call Active terminals provide voltage free relay
contacts. This contact is closed as long as a priority call
is active. This contact may be used for overriding
remote volume controls or other purposes. It is switched
together with the Call Only loudspeaker zone.
figure 3.10: Connecting loudspeakers
figure 3.11: Connecting loudspeakers
115/230V
F1 F2
+B
15L
T2.5L250V(230V~)
T5L250V(115V~) LED
100V
70V
50V
35V
25V
18V
VU 8Ohm
8Ohm
8Ohm
Call/music
Call active
Call active
Call only
0
00
00
Call/music
0
0
0
0
8Ohm
00
Zone 1
Zone 2
0
0
0
100V
100V 100V
0V
100V
100V
70V
50V
35V
25V
18V
Switch
1
2
3
4
5
6
7
Off(0)
Mix
Mix
Chim
eoff
Speec
hfilter
Phanto
moff
Phanto
moff
Phanto
moff
Mic.
1rear
1front
1rear
1
1rear
2
3
On(1)
Priority
Vox
Chim
eactive
Flat
Phanto
mon
Phanto
mon
Phantomon
100
V 0 100V0 100
V 0
08 0 8
CallOnlyZon
e1Call/BGM Zon
e2Call/BGMCal
lActive
Warning
AuxIn
FM
Antenna
Chime Ducking
1234567
21
+-
GND
3
1-
43
5
12
115V~ 230V~
Apparatusdelivered
connectedfor230V~
Thisapparatusmustbeearthed
Ratedinput
power:400VA
LinefuseT
2.5L250V(230V~)
T5L250V(115V~)
3
CVBS
SDDIF
Videooutput
B-Y Y/C
Yc R-Y
Call Only
100V 100V000 008W8W
8W
100V 100V 100V000 008W8W
Call ActiveZone 1 Call/BGM
Zone Call Only Zone 1 Zone 2
100 V
Zone 2 Call/BGM Call Only Call ActiveZone 1 Call/BGM Zone 2 Call/BGM
Zone 1 Zone 2
Note
Ensure that the loudspeakers are wired in phase
by connecting the 0-terminals of the
loudspeakers in the same zone together to the
amplifier 0-terminall.
Caution
Connect 100 V-loudspeakers in the same zone
just in parallel, but take care that the total power
of the
loudspeakers, i.e. the load, does not exceed the
120 W power rating of this Plena unit.
Caution
It is not recommended to use both low
impedance loudspeakers and 100 V-
loudspeakers simultaneously. Multiple low
impedance loudspeakers should be connected
in series or parallel so that the total impedance
is more than 8 Ohms.