Bosch Plena Power Amplifier User manual

Plena Voice Alarm System
Installation and User Instructions Manual
Voice Alarm System
en

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Important Safeguards
Prior to installing or operating this product, always read
the Important Safety Instructions which are available as
a separate document (9922 141 7014x).

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Intentionally left blank.

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Table of Contents
Important Safeguards .......................................................................................................................................................3
Table of Contents .............................................................................................................................................................5
1. Introduction ......................................................................................................................................................................9
1.1 Purpose .......................................................................................................................................................................9
1.2 Digital document .......................................................................................................................................................9
1.3 Intended audience ....................................................................................................................................................9
1.4 Related documentation ............................................................................................................................................9
1.5 Alerts ..........................................................................................................................................................................9
1.6 Conversion tables ...................................................................................................................................................10
2. Application examples ....................................................................................................................................................11
2.1 Introduction .............................................................................................................................................................11
2.1.1 Plena ....................................................................................................................................................................11
2.1.2 Application areas ...............................................................................................................................................11
2.2 Application: School ................................................................................................................................................11
2.2.1 Introduction ........................................................................................................................................................11
2.2.2 Requirements .....................................................................................................................................................11
2.2.3 Solution ...............................................................................................................................................................11
2.2.4 Power requirements ...........................................................................................................................................11
2.2.5 System configuration .........................................................................................................................................12
2.3 Application: Swimming pool .................................................................................................................................14
2.3.1 Introduction ........................................................................................................................................................14
2.3.2 Requirements .....................................................................................................................................................14
2.3.3 Solution ...............................................................................................................................................................14
2.3.4 Power requirements ...........................................................................................................................................14
2.3.5 System configuration .........................................................................................................................................14
2.4 Application: Shopping mall ...................................................................................................................................16
2.4.1 Introduction ........................................................................................................................................................16
2.4.2 Requirements .....................................................................................................................................................16
2.4.3 Solution ...............................................................................................................................................................16
2.4.4 Power requirements ...........................................................................................................................................16
2.4.5 System configuration .........................................................................................................................................16
2.4.6 Uplink to Preasideo ...........................................................................................................................................17
2.5 Application: Hotel ..................................................................................................................................................18
2.5.1 Introduction ........................................................................................................................................................18
2.5.2 Requirements .....................................................................................................................................................18
2.5.3 Solution ...............................................................................................................................................................18
2.5.4 Power requirements ...........................................................................................................................................18
2.5.5 System configuration .........................................................................................................................................18
3. System units ....................................................................................................................................................................21
3.1 Introduction .............................................................................................................................................................21
3.2 Voice alarm controller ...........................................................................................................................................21
3.2.1 Trigger inputs .....................................................................................................................................................21
3.2.2 Loudspeaker zones ............................................................................................................................................21
3.2.3 Hand-held EMG microphone ..........................................................................................................................22
3.2.4 Internal booster ..................................................................................................................................................22
3.2.5 Internal message manager ................................................................................................................................22

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3.2.6 Supervision .........................................................................................................................................................22
3.3 Router .......................................................................................................................................................................23
3.3.1 Trigger inputs .....................................................................................................................................................23
3.3.2 External boosters ...............................................................................................................................................23
3.4 Call station ...............................................................................................................................................................24
3.4.1 Extension keypad ..............................................................................................................................................24
3.5 Controls, connections and indicators ...................................................................................................................25
3.5.1 Voice alarm controller ......................................................................................................................................25
3.5.2 Router .................................................................................................................................................................27
3.5.3 Call station ..........................................................................................................................................................29
4. Installation ......................................................................................................................................................................31
4.1 Introduction .............................................................................................................................................................31
4.2 Requirements ..........................................................................................................................................................31
4.3 Unpacking ................................................................................................................................................................31
4.4 CD-ROM .................................................................................................................................................................31
4.5 Mounting the Plena units .......................................................................................................................................32
4.6 Connecting routers .................................................................................................................................................32
4.6.1 Connecting a router to the controller ..............................................................................................................32
4.6.2 Connecting a router to a router .......................................................................................................................32
4.6.3 Assigning a router ID ........................................................................................................................................32
4.6.4 Connecting trigger inputs .................................................................................................................................32
4.6.5 Connecting trigger outputs ...............................................................................................................................33
4.7 Connecting trigger inputs .......................................................................................................................................33
4.7.1 Connecting EMG trigger inputs .......................................................................................................................33
4.7.2 Connecting business trigger inputs ..................................................................................................................34
4.8 Connecting loudspeakers .......................................................................................................................................34
4.9 Connecting volume overrides ...............................................................................................................................35
4.9.1 4-wire volume override .....................................................................................................................................37
4.9.2 3-wire volume override .....................................................................................................................................38
4.10 Connecting audio inputs ........................................................................................................................................38
4.10.1 Connecting BGM sources .................................................................................................................................38
4.10.2 Connecting the mic/line input with VOX functionality ...............................................................................39
4.11 Connecting line output ...........................................................................................................................................40
4.12 Connecting trigger outputs ....................................................................................................................................40
4.12.1 EMG contact ......................................................................................................................................................41
4.12.2 Fault contact .......................................................................................................................................................41
4.12.3 Call contact .........................................................................................................................................................41
4.13 Connecting EMG microphone ..............................................................................................................................41
4.14 Connecting call stations .........................................................................................................................................41
4.14.1 Connecting call station extension keypads .....................................................................................................42
4.15 Connecting the power supply ................................................................................................................................42
4.15.1 Connecting AC mains power ...........................................................................................................................42
4.15.2 Connecting back-up power ..............................................................................................................................43
4.15.3 Connecting external boosters ...........................................................................................................................43
5. Configuration .................................................................................................................................................................47
5.1 Introduction .............................................................................................................................................................47
5.2 Hardware configuration .........................................................................................................................................47
5.3 System settings DIP switch ....................................................................................................................................47

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5.3.1 Monitor ...............................................................................................................................................................47
5.3.2 APR mode ..........................................................................................................................................................47
5.3.3 Supervision .........................................................................................................................................................47
5.3.4 2-channel operation ...........................................................................................................................................50
5.4 Mic/line input with VOX functionality configuration ........................................................................................50
5.4.1 VOX input source selector ...............................................................................................................................50
5.4.2 VOX configuration DIP switch .......................................................................................................................50
5.4.3 VOX volume control ........................................................................................................................................51
5.4.4 Vox ......................................................................................................................................................................51
5.4.5 Speech filter ........................................................................................................................................................51
5.4.6 Phantom power ..................................................................................................................................................51
5.5 Call station configuration DIP switch ...................................................................................................................51
5.5.1 Call station ID ....................................................................................................................................................51
5.5.2 Sensitivity ............................................................................................................................................................52
5.5.3 Speech filter ........................................................................................................................................................52
5.5.4 Termination ........................................................................................................................................................52
5.6 Router .......................................................................................................................................................................52
5.6.1 ID rotary switch .................................................................................................................................................52
5.6.2 Termination switch ............................................................................................................................................52
6. Operation ........................................................................................................................................................................53
6.1 Switching ON ..........................................................................................................................................................53
6.2 Switching OFF .........................................................................................................................................................53
6.3 Calibrating the controller .......................................................................................................................................53
6.4 Background music ..................................................................................................................................................53
6.4.1 Selecting a BGM source ....................................................................................................................................53
6.4.2 Selecting BGM zones ........................................................................................................................................53
6.4.3 Adjusting BGM volume ....................................................................................................................................54
6.4.4 Adjusting BGM tone .........................................................................................................................................54
6.5 Business calls ...........................................................................................................................................................54
6.5.1 Selecting zones ...................................................................................................................................................54
6.5.2 Making a business announcement ...................................................................................................................55
6.6 Emergency state ......................................................................................................................................................55
6.6.1 Entering the emergency state ...........................................................................................................................55
6.6.2 Stopping the beeper ..........................................................................................................................................55
6.6.3 Exiting the emergency state .............................................................................................................................56
6.7 Emergency calls ......................................................................................................................................................56
6.7.1 Selecting zones ...................................................................................................................................................56
6.7.2 Making an emergency call ................................................................................................................................56
6.8 Alert messages .........................................................................................................................................................57
6.8.1 Starting the alert message .................................................................................................................................57
6.9 Alarm messages .......................................................................................................................................................57
6.9.1 Starting the alarm message ...............................................................................................................................57
7. Fault Handling ...............................................................................................................................................................59
7.1 Introduction .............................................................................................................................................................59
7.2 Fault indicators ........................................................................................................................................................59
7.2.1 Line fault indicators ...........................................................................................................................................59
7.2.2 System fault indicators ......................................................................................................................................59
7.2.3 Supervision disabled ..........................................................................................................................................59

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7.2.4 Indicator test .......................................................................................................................................................59
7.3 Troubleshooting a fault ..........................................................................................................................................60
7.4 System faults ............................................................................................................................................................61
8. Technical Data ...............................................................................................................................................................63
8.1 Call Station LBB1956/00 .......................................................................................................................................63
8.1.1 Electrical .............................................................................................................................................................63
8.1.2 Performance .......................................................................................................................................................63
8.1.3 Interconnection ..................................................................................................................................................63
8.1.4 Environmental conditions .................................................................................................................................63
8.1.5 General ...............................................................................................................................................................63
8.2 Voice Alarm Controller LBB1990/00 ..................................................................................................................63
8.2.1 Electrical .............................................................................................................................................................63
8.2.2 Message manager ..............................................................................................................................................64
8.2.3 Internal booster ..................................................................................................................................................64
8.2.4 Interconnection ..................................................................................................................................................64
8.2.5 Loudspeaker outputs .........................................................................................................................................64
8.2.6 Overrides ............................................................................................................................................................64
8.2.7 Trigger outputs ...................................................................................................................................................64
8.2.8 Trigger inputs/24 V DC out .............................................................................................................................65
8.2.9 VOX input .........................................................................................................................................................65
8.2.10 BGM ....................................................................................................................................................................65
8.2.11 Line out ...............................................................................................................................................................65
8.2.12 External booster .................................................................................................................................................65
8.2.13 Environmental conditions .................................................................................................................................65
8.2.14 General ...............................................................................................................................................................65
8.3 Router LBB1992/00 ................................................................................................................................................65
9. Glossary ............................................................................................................................................................................67

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1 Introduction
1.1 Purpose
The purpose of the Installation and User Instructions
Manual is to provide information required to install,
configure, operate and maintain a Plena Voice Alarm
System. A Plena voice alarm controller (system
controller) forms the heart of a Plena Voice Alarm
System. Unlike a basic system (see also the Basic System
Manual, 9922 141 10361), a Plena Voice Alarm System
may be configured, using all available units of the Plena
product line, including one or more routers, call stations
and call station extensions, to simultaneously serve and
manage up to 60 loudspeaker zones.
A Plena Voice Alarm System can be extensively
configured from a PC, running the Configuration
Software. How to use this software is described in the
Configuration Software Manual (9922 141 10381). In
this manual the Plena Voice Alarm System is further
referred to as “system”.
1.2 Digital document
This Installation and User Instructions Manual is 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 quickly consult the referenced location.
1.3 Intended audience
This Installation and User Instructions Manual is
intended for installers and users of a Plena Voice Alarm
System.
1.4 Related documentation
The following related documents are available:
• Basic System Manual (9922 144 10361).
• Configuration Software Manual
(9922 144 10381).
1.5 Alerts
In this manual, four types of alerts are used. The alert
type is closely related to the effect that may be caused
when 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
being observed.
•Warning
Persons can be (severely) injured or the equipment
can be seriously damaged if the alert is not being
observed.
•Danger
Not observing the alert can result in death.
In this manual, the following indicators are used for
alerts:
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 discharges.

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1.6 Conversion tables
In this manual, SI units are used to express lengths,
masses, temperatures etcetera. Metric units can be
converted to non-metric units using the information
provided below.
table 1.1: Conversion of length units
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 mass units
1 lb = 0.4536 kg 1 kg = 2,2046 lb
table 1.3: Conversion of pressure units
1 psi = 68.95 hPa 1 hPa = 0.0145 psi
Note
1 hPa = 1 mbar.
table 1.4: Conversion of temperature units
°
F9
5
---°C32+⋅=
°
C5
9
---°F32–()⋅=

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2 Application examples
2.1 Introduction
In a Plena Voice Alarm System, any of the various units
offered by the Plena product family, can be combined
together, in order to satisfy with any of your specific
configuration requirements. This chapter provides a
number of examples, each describing a specific system
configuration. You can use these examples and quickly
adapt them to meet your own configuration
requirements.
2.1.1 Plena
The Plena Voice Alarm System is part of the Plena
product range. Plena provides public address solutions
for places where people gather to work, worship, trade
or simply enjoy themselves. It is a family of system
elements that are combined to create public address
systems tailored for virtually any application. The range
includes mixer, pre-, system- and booster amplifiers, a
source unit, digital message manager, feedback
suppressor, call stations, an ‘All-in-One’ system and a
voice alarm system. Each element is designed to
complement all others thanks to matched acoustical,
electrical and mechanical specifications.
2.1.2 Application areas
Typically, the Plena Voice Alarm System is used to
create small systems that must comply witih emergency
and evacuation standards, medium-sized systems in
which one call channel is enough and large systems that
consists of many small zones.
The application areas of a Plena Voice Alarm System
include:
• Schools, see section 2.2.
• Swimming pools, see section 2.3.
• Shopping malls, see section 2.4.
• Hotels, see section 2.5.
Other areas include: factories, high-rise buildings, office
buildings, recreational facilities and small airports.
2.2 Application: School
2.2.1 Introduction
Schools are typical example of applications with a large
number of zones each with a relatively low output
power requirement per zone. The main priorities are
speech intelligibility and compliance with IEC60849
standard (or equivalent).
2.2.2 Requirements
In addition to mandatory voice alarm functionality for
evacuating staff and students, Econtroller systems for
schools should also include chime tones for notifying
the start/finish of lessons, plus public address
functionality for individually calling classrooms or
public area. BGM is not essential. Since a classroom has
a low ambient noise level, one loudspeaker is usually
sufficient, keeping the total power requirement
relatively low. Outside areas such as playgrounds and
sports fields will require weatherproof horn
loudspeakers.
2.2.3 Solution
The Plena voice alarm controller handles message
routing to 6 zones, the remaining 24 zones require four
additional 6-zone routers. The office is equipped with a
call station plus keypads for individually addressing
zones, while a fireman’s panel (with overall priority) is
built in by the main entrance.
2.2.4 Power requirements
The voice alarm controller features a built-in 240 W
booster amplifier, making it possible to drive up to 40
loudspeakers with a power handling capacity of 6 W
each. This is sufficient for a medium-sized high school
with 24 classrooms, four toilets/changing rooms, a staff
table 2.1: Summary of requirements
Requirements
30 zones (typically 20 to 60 zones).
Speech intelligibility is the main priority.
Low power requirement (one loudspeaker) per
classroom.
Fireman’s panel by main entrance.
Call station in main office.
Additional public address functions such as chime
tones desirable.
BGM in recreation areas is optional.

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meeting room and two offices, each requiring a single
loudspeaker. The canteen, assembly hall, playing fields
and corridors typically require more loudspeakers per
zone. An additional Plena booster amplifier is used as a
spare amplifier.
2.2.5 System configuration
The Plena units, needed to build the application, are
listed in table 2.3. The interconnections are shown in
figure 2.1.
table 2.2: Power requirements per zone
Zone Description Power
1-22 Classrooms 22x6W cabinet
23 Toilets 4x6W ceiling
24 Staff meeting room 1x6W cabinet
25-26 Offices 2x6W cabinet
27 Corridors 4x6W projector
28 Assembly hall 2x6W ceiling
29 Lunch canteen 2x6W ceiling
30 Playing fields 1x10W horn
To t a l 232W
table 2.3: Used Plena units
Unit Description Number
LBB1990/00 Voice alarm controller 1x
LBB1992/00 Router 4x
LBB1996/00 Remote control panel 1x
LBB1997/00 RCP extension 4x
LBB1956/00 Call station 1x
LBB1957/00 CS extension keypad 4x
LBB1935/00 240W booster 1x

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figure 2.1: Plena Voice Alarm System, application example: school
zones 7-12
zones 13-18
zones 19-24
zones 25-30
zones 1-6
routers
controller
remote control panel extensions
remote control panel
call station
call station keypads
240 W booster

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2.3 Application: Swimming pool
2.3.1 Introduction
Swimming pools and other indoor sports and
recreational facilities are typical examples of smaller
applications with few zones. The main priorities are
excellent speech intelligibility and compliance with
IEC60849 standard (and its national equivalents),
although music in different areas is optional.
2.3.2 Requirements
An Econtroller system for a swimming pool requires
voice alarm functionality with public address
functionality for regular announcements and
background music (optional). To ensure that all visitors
in the relatively noisy pool area hear emergency
messages, the power output for that zone is relatively
high. Other areas, such as the changing rooms and
offices, have lower power requirements.
2.3.3 Solution
The Plena voice alarm controller handles routing to up
to 6 zones, so no additional routers are required. The
office/reception is equipped with a call station plus
keypad for individually addressing zones, while a
fireman’s panel (with overall priority) is built in by the
emergency exit. The Plena voice alarm system
is a two-channel system, so BGM can still be provided
in zones not receiving a call.
2.3.4 Power requirements
The voice alarm controller has a built-in 240 W booster
amplifier, making it possible to drive up to 40
loudspeakers with a power handling capacity of 6 W
each. The pool area requires highpower music horn
loudspeakers qualified for use in a high humidity
atmosphere. The snack bar uses cabinet loudspeakers
for music reproduction. The zones are defined as
indicated in the table. An additional Plena booster
amplifier is used for two-channel operation and as a
spare amplifier.
2.3.5 System configuration
The Plena units, needed to build the application, are
listed in table 2.6. The interconnections are shown in
figure 2.2.
table 2.4: Summary of requirements
Requirements
5 zones (typically up to 6 zones)
Speech intelligibility is the main priority
High power requirement in the noisy pool area
Fireman’s panel by fire exit
Call station in office/reception
Additional public address functions for
announcements
BGM
table 2.5: Power requirements per zone
Zone Description Power
1Indoor pool area 5x30W horn
2 Children’s pool area 2x10W horn
3Changing rooms 4x6W ceiling
4 Snack bar 4x6W cabinet
5Office 2x6W cabinet
To t a l 2 3 0 W
table 2.6: Used Plena units
Unit Description Number
LBB1990/00 Voice alarm controller 1x
LBB1996/00 Remote control panel 1x
LBB1956/00 Call station 1x
LBB1957/00 CS extension keypad 1x
LBB1935/00 240W booster 1x
LBB1961/00 BGM source 1x

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figure 2.2: Plena Voice Alarm System, application example: swimming pool
BGM source
controller
remote control panel
call station
call station keypad
240 W booster
zones 1-5

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2.4 Application: Shopping mall
2.4.1 Introduction
Shopping malls are typical example of applications with
a large number of zones with varying output power
requirements per zone. The priorities are speech
intelligibility and compliance with IEC60849 standard
(and its national equivalents).
2.4.2 Requirements
In addition to mandatory voice alarm functionality for
evacuating the public and shop personnel, an
Econtroller system for shopping centers can have BGM
for the public areas. It should be possible to individually
call each shop or store. During emergency messages, the
volume override of each individual shop is engaged.
Additional public address functionality for making
general public announcements is an optional
requirement.
2.4.3 Solution
A Plena voice alarm controller handles routing to 6
zones, the remaining 48 zones require eight 6-zone
routers. The security control room is equipped with a
remote control panel and call station plus keypads for
individually addressing zones and BGM for the public
areas, while the controller unit and routers are located
in a fire-resistant cabinet or basement. Fireman’s panel
(with overall priority) is built in close to the main
entrance or emergency exit (subject to relevant local
regulations). The Plena voice alarm system is a two-
channel system, so BGM can still be provided in zones
not receiving a call.
2.4.4 Power requirements
Each zone will have varying power requirements,
ranging from small shops with a single loudspeaker to
department stores with several floors and more
loudspeakers. Parking garages and open-air walkways
will require weatherproof sound projectors or horn
loudspeakers. To facilitate phased evacuation from
different levels of the shopping center, public areas are
divided into zones. Additional Plena booster amplifiers
are incorporated to provide additional power, two-
channel operation and for use as a spare amplifier.
2.4.5 System configuration
The Plena units, needed to build the application, are
listed in table 2.9. The interconnections are shown in
figure 2.3.
table 2.7: Summary of requirements
Requirements
54 zones (typically up to 60 zones)
Speech intelligibility is the main priority
Variable power requirement per zone
Call station in security control room
Additional public address functionality
(nonemergency)
BGM in public areas
BGM music with local override in shops
table 2.8: Power requirements per zone
Zone Description Power
1-30 30 small shops 30x6W cab/ceil
31-36 6 small shops 12x6W 2/store
37-42 6 medium stores 24x6W ceiling
43-46 Large store, 4 levels 16x6W ceiling
47 Control room 1x6W cabinet
48 Offices 4x6W cabinet
49 Walkways gnd floor 4x6W projector
50 Gallery 1st floor 10x6W ceiling
51 Gallery 2nd floor 10x6W ceiling
52 Main public square 4x18W horn
53 Parking level 1 6x10W horn
54 Parking level 2 6x10W horn
To t a l 858W
table 2.9: Used Plena units
Unit Description Number
LBB1990/00 Voice alarm controller 1x
LBB1992/00 Router 8x
LBB1996/00 Remote control panel 1x
LBB1997/00 RCP extension 8x
LBB1998/00 RCP kit 1x
LBB1999/00 RCP extension kit 8x
LBB1956/00 Call station 1x
LBB1957/00 CS extension keypad 5x
LBB1935/00 240W booster 3x
LBB1938/00 480 booster 2x
LBB1961/00 BGM source 1x

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2.4.6 Uplink to Preasideo
In large voice alarm system configurations, as in big
shopping malls, it is possible to have a Plena system
integrated with a Preasideo system. An uplink from a
Plena system to a Preasideo system can be established
by interconnecting a Preasideo audio output with the
Plena mic/line input with VOX functionality.
Emergency calls issued from the Preasideo system, are
then broadcast on the Plena system. For this purpose the
Plena mic/line input with VOX functionality should be
assigned the highest possible priority level (14).
figure 2.3: Plena Voice Alarm System, application example: shopping mall
zones 7-12
zones 13-18
zones 19-24
zones 25-30
zones 31-36
zones 37-42
zones 43-48
zones 49-54
routers
BGM source
controller
remote control panel extensions
remote control panel
fireman's panel
call station
call station keypads
240 W booster
240 W boosters
zones 1-6
480 W boosters
Note
Refer to the Configuration Software Manual
(9922 141 10381) for details about configuring
priority levels.

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2.5 Application: Hotel
2.5.1 Introduction
Smaller hotels are typical examples of applications with
relatively few zones, each with a medium to high output
power requirement. The priorities are speech
intelligibility and compliance with IEC60849 standard.
2.5.2 Requirements
In addition to mandatory voice alarm functionality for
evacuating guests and staff, an Econtroller system for a
hotel should also include BGM in the restaurant, bar
and lobby, plus public address functionality for general
paging. To ensure that all guests hear an emergency
message, the power output per zone is relatively high.
Outside areas such as car parking garages, require
weatherproof horn loudspeakers.
2.5.3 Solution
A Plena voice alarm controller handles routing to up to
6 zones, the additional 6 zones require a router. Both
the reception and office are equipped with call stations
plus keypads for individually addressing zones, while a
fireman’s panel (with overall priority) is built in by the
emergency exit. The Plena Voice Alarm System is a
two-channel system, so BGM can still be provided in
zones not receiving a call.
2.5.4 Power requirements
The system controller features a built-in 240 W booster
amplifier, able to drive up to 40 loudspeakers (6 W).
Additional Plena booster amplifiers are incorporated to
provide additional power, two-channel operation and
spare amplification. To facilitate phased evacuation
from different floors of the hotel, guest areas are divided
into separate zones, each fitted with 13 ceiling
loudspeakers in the corridors. The bar uses cabinet
loudspeakers, while the parking garage uses
weatherproof horn loudspeakers. The zones are defined
as shown in the table opposite.
2.5.5 System configuration
The Plena units, needed to build the application, are
listed in table 2.12. The interconnections are shown in
figure 2.4.
table 2.10: Summary of requirements
Requirements
12 zones (typically 10 to 20 zones in small hotels)
Speech intelligibility is the main priority
High power requirement (multiple loudspeakers)
per floor
Fireman’s panel by fire exit
Call stations in reception and office
Additional public address functions for paging
guests
BGM in lobby and restaurant
table 2.11: Power requirements per zone
Zone Description Power
1Bar 3x6W cabinet
2 Restaurant 6x6W ceiling
3Lobby 2x6W ceiling
4 Office 1x6W cabinet
5Kitchens 2x6W cabinet
6 Parking garage 3x10W horn
7-12 Floors 1 to 6 78x6W ceiling
Total 582W
table 2.12: Used Plena units
Unit Description Number
LBB1990/00 Voice alarm controller 1x
LBB1992/00 Router 1x
LBB1996/00 Remote control panel 1x
LBB1997/00 RCP extension 1x
LBB1956/00 Call station 2x
LBB1957/00 CS extension keypad 3x
LBB1938/00 480 booster 2x
LBB1935/00 240W booster 1x
LBB1961/00 BGM source 1x

Bosch Security Systems | 2004-06 | 9922 141 10371en
Plena Voice Alarm System | Installation and User Instructions | Application examples en | 19
figure 2.4: Plena Voice Alarm System, application example: hotel
480 W booster
router
BGM source
controller
remote control panel extensions
call station
call station keypads
remote control panel
call station
call station keypad
240 W booster
zones 1-6
zones 7-12

Bosch Security Systems | 2004-06 | 9922 141 10371en
Plena Voice Alarm System | Installation and User Instructions | Chapter 2 | Configuration en | 20