Bosch LBB 1925 Operating instructions

Plena System Pre-amplifier and Call Stations
Installation and Operating Manual
en
LBB 1925/10, LBB 1941,
LBB 1946
Plena System Pre-amplifier | Installation and Operating Manual | Important safeguards
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Important safeguards
1 Read instructions - All the safety instructions for use
should be read before the system is operated.
2 Retain instructions - The safety instructions and
instructions for use should be retained for future
reference.
3 Heed warnings - All warnings on the unit and in the
operating instructions should be adhered to.
4 Follow instructions - All operating instructions and
instructions for use should be followed.
5 Cleaning - Unplug system units from the mains outlet
before cleaning. Do not use liquid cleaners or aerosol
cleaners. Use a damp cloth for cleaning.
6 Attachments - Do not use attachments not
recommended by the product manufacturer as they may
cause hazards.
7 Water and Moisture - Do not use this unit near water, for
example near a bathtub, washbowl, kitchen sink, or
laundry basket, in a wet basement, near a swimming
pool, in an unprotected outdoor installation or any area
which is classified as a wet location.
8 Accessories - Do not place this unit on an unstable stand,
tripod, bracket or mount. This unit may fall, causing
serious injury to a person and serious damage to the
unit. Use only a stand, tripod, bracket or mount
recommended by the manufacturer, or sold with the
product. Any mounting of the unit should follow the
manufacturer's instructions, and should use a mounting
accessory recommended by the manufacturer. An
appliance and cart combination should be moved with
care. Quick stops, excessive force, and uneven surfaces
may cause the appliance and cart combination to
overturn.
9 Ventilation - Openings in the enclosure, if any, are
provided for ventilation and to ensure reliable operation
of the unit and to protect it from overheating. These
openings must not be blocked or covered. The unit
should not be placed in a built-in installation unless
proper ventilation is provided or the manufacturer's
instructions have been adhered to.
10 Power sources - Units should be operated only from the
type of power source indicated on the marking label. If
you are not sure of the type of power supply you plan to
use, consult your appliance dealer or local power
company. For units intended to operate from battery
power, or other sources, refer to the "Installation and
User Instructions".
11 Grounding or polarisation - This unit may be equipped
with a polarised alternating current line plug (a plug
having one blade wider than the other). This plug will fit
into the power outlet only one way. This is a safety
feature. If you are unable to insert the plug fully into the
outlet, try reversing the plug. If the plug still fails to fit,
contact your electrician to replace your obsolete outlet.
Do not defeat the safety purpose of the polarised plug.
Alternatively, this unit may be equipped with a 3-wire
grounding type plug having a third (grounding) pin.
This plug will only fit into a grounding-type power
outlet. This is a safety feature. If you are unable to insert
the plug into the outlet, contact your electrician to
replace your obsolete outlet. Do not defeat the safety
purpose of the grounding-type lug.
Bosch Security Systems | 2003-09 | 3922 988 99483en
12 Power-Cord Protection - Power supply cords should be
routed so that they are not likely to be walked on or
pinched by items placed upon or against them, paying
particular attention to cords and plugs, convenience
receptacles, and the point where they exit from the
appliance.
13 Overloading - Do not overload outlets and extension
cords as this can result in a risk of fire or electrical shock.
14 Object and Liquid Entry - Never push objects of any
kind into this unit through openings as they may touch
dangerous voltage points or short-out parts that could
result in a fire or electric shock. Never spill liquid of any
kind on the unit.
15 Servicing - Do not attempt to service this unit yourself as
opening or removing covers may expose to dangerous
voltage or other hazards. Refer all servicing to qualified
service personnel.
16 Damage Requiring Service - Unplug the unit from the
outlet and refer servicing to qualified service personnel
under the following conditions:
• When the power-supply cord or plug is damaged.
• If liquid has been spilled, or objects have fallen into
the unit.
• If the unit has been exposed to rain or water.
• If the unit does not operate normally by following
the instructions for use. Adjust only those controls
that are covered by the instructions for use, as an
improper adjustment of other controls may result in
damage and will often require extensive work by a
qualified technician to restore the units to their
normal operation.
• If the unit has been dropped or the unit has been
damaged.
• When the unit exhibits a distinct change in
performance; this indicates a need for service.
17 Replacement Parts - When replacement parts are
required be sure the service technician has used
replacement parts specified by the manufacturer or parts
which have the same characteristics as the original part.
Unauthorised substitutions may result in fire, electric
shock or other hazards.
18 Safety Check - Upon completion of any service or
repairs to the units, ask the service technician to perform
safety checks to determine that the unit is in proper
operating condition.
19 Lightning - For added protection of the units during a
lightning storm, or when it is left unattended and unused
for long periods of time, unplug it from the wall outlet
and disconnect the cable system. This will prevent
damage to the unit due to lightning and power-line
surges.
Plena System Pre-amplifier | Installation and Operating Manual | About this manual
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About this manual
This manual provides all the information required to install and operate the unit.
Conventions
Warning
Follow these instructions to prevent personal injury.
Caution
Follow these instructions to prevent damage to the equipment.
Note
Read these instructions for tips and other useful information.
Safety precautions
Warning
Do not open the unit when it is connected to the mains. The unit contains non-insulated parts, which can
cause electric shock.
Caution
There are no user-serviceable parts inside the unit. Service must be done by qualified personnel.
Bosch Security Systems | 2003-09 | 3922 988 99483en
Plena System Pre-amplifier | Installation and Operating Manual | Table of contents
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Table of contents
Important safeguards..........................................................................................................................................................3
About this manual ..............................................................................................................................................................4
Safety precautions...............................................................................................................................................................4
Table of contents ................................................................................................................................................................5
1 About the system pre-amplifier .......................................................................................................................................7
1.1
Controls & Connections (front) ...............................................................................................................................8
1.2
Controls & connections (rear) ..................................................................................................................................8
2 Internal settings (system pre-amplifier) ...........................................................................................................................9
2.1
Setting the zones for trigger 1 and 2 .......................................................................................................................9
2.2
Setting tones ..............................................................................................................................................................9
2.3
Setting the Speech filter and call station volume ................................................................................................10
2.4
Setting priority .........................................................................................................................................................10
2.5
Setting single and dual channel use ......................................................................................................................11
2.6
Override contact setting .........................................................................................................................................11
3 Installation in rack (system pre-amplifier) ....................................................................................................................12
4 External settings and connections (system pre-amplifier) ...........................................................................................13
4.1
Connect the DC supply (battery) ..........................................................................................................................13
4.2
Connect a microphone ...........................................................................................................................................14
4.3
Connect the call stations ........................................................................................................................................15
4.4
Connect an emergency input line .........................................................................................................................15
4.5
Connect audio sources for background music .....................................................................................................16
4.6
Connect to a booster ..............................................................................................................................................17
5 Operation (system pre-amplifier) ...................................................................................................................................18
6 About the call stations .....................................................................................................................................................19
6.1
Controls & Connections (top) ................................................................................................................................20
7 Internal settings (call stations) ........................................................................................................................................21
7.1
Chime .......................................................................................................................................................................21
7.2
Setting sensitivity & speech filter ...........................................................................................................................21
8 Operation (call stations) ..................................................................................................................................................22
9 Technical data ..................................................................................................................................................................23
9.1
System pre-amplifier LBB 1925 ............................................................................................................................23
9.1.1 Electrical .............................................................................................................................................................23
9.1.2 Performance .......................................................................................................................................................23
9.1.3 Inputs ..................................................................................................................................................................23
9.1.4 Outputs ...............................................................................................................................................................24
9.1.5 Relays ..................................................................................................................................................................24
9.1.6 Environmental conditions .................................................................................................................................24
9.1.7 General ...............................................................................................................................................................24
9.2
All-call call station LBB 1941 ................................................................................................................................25
9.2.1 Electrical .............................................................................................................................................................25
9.2.2 Performance .......................................................................................................................................................25
9.2.3 Environmental conditions .................................................................................................................................25
9.2.4 General ...............................................................................................................................................................25
9.3
6-zone call station LBB 1946 .................................................................................................................................26
9.3.1 Electrical .............................................................................................................................................................26
9.3.2 Performance .......................................................................................................................................................26
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Plena System Pre-amplifier | Installation and Operating Manual | Table of contents
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9.3.3 Selections ............................................................................................................................................................26
9.3.4 Environmental conditions .................................................................................................................................26
9.3.5 General ...............................................................................................................................................................26
Chime tone tables.............................................................................................................................................................27
Bosch Security Systems | 2003-09 | 3922 988 92483en
Plena System Pre-amplifier | Installation and Operating Manual | About the system pre-amplifier
1
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About the system pre-amplifier
Plena
Sys
tem Pr
0 dB
e-am
-6 dB
-20 dB
plifier
Powe
r
Selec
t
/Line
CD
AUX
Z1
+
Z4
+
Z2
Z5
Z3
Z6
Figure 1.1
Block Diagram LBB 1925/10
Tone
B1
Call 100V
Tone
1
B2 Chime 0 1 2
Tel/EMG
J2
CAll & BGM 0V
BGM 100V
1 2 3 4
Alarm/Timer/Chime
Tone
Call Station In Use
Zone 1,0V Out
Call 0V
S301
5
6 7 8
Zone 1,100V Out
BGM 0V
LBB1941/00
RA1
24V DC
Trigger 1
Z1 Z2 Z3 Z4 Z5 Z6 A1
Alarm/Timer
R1
S302
Front panel
Key switch
Zone 1 override
J4
Tigger 1
Trigger 2
1 2 3 4 5 6 7 8
VOX
Zone 1
RB1
Call active
Tone
Alarm/Timer
Z1 Z2 Z3 Z4 Z5 Z6 A2
M.C.U.
S303
Zone 2,0V Out
Tigger 2
CAll & BGM 0V
1 2 3 4 5 6 7 8
VR1
P.S.
RA2
Speech filter
JP101
ON/OFF
S101
200mV
Zone 2 override
Front panel
Key switch
VU LED
Announcement
Tone Control
1mV
/Line
Zone 2,100V Out
Priority
Zone 2
RB2
Master out
Zone 3,0V Out
CAll & BGM 0V
Out
Zone 3,100V Out
RA3
CD
Selector
JP102
Music
Tone Control
O
Headphone
1-CH use
2-CH use
Zone 3 override
Front panel
Key switch
Zone 3
RB3
Aux
Zone 4,0V Out
CAll & BGM 0V
O
PC Audio In
Interface
VR101
Zone 4,100V Out
RA4
Zone 4 override
Front panel
Key switch
RS-485
Zone 4
RB4
Zone 5,0V Out
CAll & BGM 0V
RS-232
F1
115V/230V
F101
F102
24V DC
Zone 5,100V Out
+
RA5
24V DC OUT
0.5A
0.5A
-
0.5A
Zone 5 override
Front panel
Key switch
Zone 5
RB5
18V DC
+
F101
-
1.5A
Zone 6,0V Out
CAll & BGM 0V
24V DC IN
Zone 6,100V Out
RA6
Zone 6 override
Front panel
Key switch
Zone 6
RB6
Figure 1.2
The Plena System Pre-amplifier is a mono amplifier, which mixes a call-station signal with a background music
signal. You can adjust the volume and tone for both signals. The background music channel has 3 possible inputs
(CD, Tape and AUX) and a direct XLR output for 2-channel use. Internal relays control the audio routing to the
6 zones. The zone selection keys at the front determine to which zones the background music is send.
Bosch Security Systems | 2003-09 | 3922 988 99483en
Plena System Pre-amplifier | Installation and Operating Manual | About the system pre-amplifier
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1.1 Controls & Connections (front)
Plena System Pre-amplifier
1
Select
0 dB
Z1
CD
-6 dB
Z2
Z3
AUX
11
-20 dB
2
Z4
/Line
Power
Z5
Z6
3
0
0
4
5
6
7
8
9
10
Figure 1.3
1
2
3
4
5
6
VU meter (LED bar)
Power on indication LED (green)
Power on/off
Volume control, mic/line
Tone control, mic/line
Volume control, background music
7
8
9
10
11
Background music selection switch
Tone control, background music
Zone selection keys, background music
Headphone connection
Indication LED, call station active
1.2 Controls & connections (rear)
11
12
Tel/EMG
13
14
Trigger 1 Trigger 2
16
15
7
17 18 19
20
Apparatus delivered 115V
connected for 230V-
LBB1925/10
890019251005
115/230V~,50/60Hz
No.
230V
21
0
1. Audio+
2.0V
3.Audio4.24Vd.c.
/Line
5. Allcall
6.DataPCAudoln
7.Data+
8.Chs.GND
CD
RS232
Aux
L
/Line
+
2
GND
GND
1
1
3
100V 0
3
5
3
1
5
1
3
22
2
Rated Input
Power : 50VA
T0.5L 250V
100V 0
1
MasterOut
4
100V 0
+
-
100V 0
100V 0
100V 0
+24V-
6
8
5
4
2
100V 0
3
R
7
14
100V 0
Out
+24VWarning
This apparatus must be earthed
2
2
3
4
5
6
7
8
9
Figure 1.4
1
2
3
4
5
6
7
8
9
10
11
Mic/line input (DIN)
Mic/line input (XLR)
Call station input (8-pin DIN)
Audio input from PC (Cinch)
Master output (XLR)
Background music output (XLR)
100V LSP output (zone 1 to 6)
24V DC output for relays (terminal)
24V DC input (terminal)
Earth connection screw
Volume control (Tel/Emergency input)
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12
13
14
15
16
17
18
19
20
21
22
Telephone/Emergency signal input
Alarm/time signal, trigger inputs
Control input for PC (RS232; 9-pin)
CD/ Tape/Auxiliary input (Cinch)
Tape output (Cinch)
Call active control output (terminal)
Call input from booster (terminal)
Music input from booster (terminal)
Mains voltage switch (115/230V)
Mains socket
Mains fuse
10
Plena System Pre-amplifier | Installation and Operating Manual | Internal settings
2
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Internal settings (system pre-amplifier)
CN104
1925-8
CN103
S301
1
ON
B1
B2
CN101
1 1941
8
1
ON
ZONE 1 2 3 4 5 6
S302
A1
CHIMEVOL.
8
VR1
CND001
CND003
CND002
ON
1
ZONE 1 2 3 4 5 6
S303
A2
8
CN105
CND102
Figure 2.1
2.1 Setting the zones for trigger 1 and 2
Trigger inputs 1 and 2 on the rear panel may start alarm or time signals upon closing its contact. The zones for
trigger 1 can be set with S302 (bit 1 to 6), for trigger 2 with S303 (bit 1 to 6). The selected zones receive a time or
alarm tone when the trigger is activated. Time tones are edge triggered and last the duration of the chime. Alarm
tones are level triggered and last until released.
2.2 Setting tones
The time or alarm tone for trigger 1 can be set with S301 (bit 1 and 2) and S302 (bit 7 and 8), for trigger 2 with S301
(bit 3 and 4) and S303 (bit 7 and 8). If you use a LBB 1941 call station, the chime tone must be set with S301 (bit 6
to 8). You can find the chime tone tables at the end of the manual. With S301 (bit 5) the 2-tone chime on the DIN
priority contact for mic/line can be enabled or disabled. The 2-tone chime is 554 Hz (1s), 440 Hz (1s). You can set
the chime volume with VR1.
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Plena System Pre-amplifier | Installation and Operating Manual | Internal settings
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2.3 Setting the Speech filter and call station volume
CN21
CN24
MASTER OUT
SWITCH
XLR
DIN
JP101
OFF ON
CN4
C179
J2
25-1
1 CH USE
LINE
CALL STATIONS
PC AUDIO
IN
VR101
CALL STATION
LEVEL
U106
MUSIC OUT
CN9
2 CH USE
RL701
D701
CN1
CN107
R701
CN6
CN14
CN17
Q701
CN10
CN23
CN8
25-7
3938 101 90282
Figure 2.2
JP102
1 CH USE
CN18
2 CH USE
Figure 2.3
The Speech filter for the mic/line input can be switched on/off with jumper JP101 (default ON).
You can set the call station volume with VR101.
2.4 Setting priority
The priority cannot be set manually. The default priority order is:
1 Emergency/Telephone input
2 Trigger 1 or 2 (first comes, first served)
3 All-call call station LBB 1941
4 6-zone call station LBB 1946 (DIP switch setting of LBB 1946)
5 6-zone call station LBB 1946 (DIP switch setting of LBB 1946)
6 Background music and mic/line input
Bosch Security Systems | 2003-09 | 3922 988 99483en
CN13
Plena System Pre-amplifier | Installation and Operating Manual | Internal settings
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2.5 Setting single and dual channel use
The system pre-amplifier can be used with one booster amplifier for both music and calls ('1 channel use'). Any call
will interrupt background music in all zones. It is also possible to use separate booster amplifiers, for music and calls
('2 channel use'). Now a call will not interrupt music in zones, not addressed by the call. Jumper JP102 selects
whether background music is going to the Master output (1 channel use) or not (2 channel use). Jumper J2 must be
set to either 1 channel use or 2 channel use to select the amplifier terminals for the zones.
2.6 Override contact setting
3-wire (zone 1-6)
D614
RL606
RL605
D613
RL604
RL603
RL602
RL601
100V
CN24
OVERRIDE
CN20
LOCAL VOLUME
CONTROL
CN3
CN21
D606
RL612
D604
RL610
D603
RL609
D602
RL608
D601
RL607
4-wire (zone 1-6)
0V
CN22
D605
RL611
Figure 2.5
100V
24V
RL612
J3
LOCAL VOLUME CONTROL
AMPLIFIER
100V
audio
24V dc
J4
Override
0V
AMPLIFIER
RL611
RL610
RL609
25-6
RL608
OVERRIDE
RL607
3938 101 90272
Figure 2.4
DC Out 24V (-)
Figure 2.6
Jumpers J3 and J4 select whether the override output for each zone (indicated by
) is switching between the 0V
and 100V loudspeaker signal, or between ground and 24Vdc. This override output is available per zone and may be
used to override local volume controls, to make sure that calls are coming through. For 3-wire volume override, the
jumpers should be in 100V audio position. For 4-wire override the jumpers should be in 24Vdc position. The
drawings show the principle of 3- and 4-wire volume override. The override outputs are activated whenever a call is
made, when the emergency input is activated, or an alarm or time signal is triggered. At the same time also the Call
Active relay is activated, providing a potential free contact.
Bosch Security Systems | 2003-09 | 3922 988 99483en
Plena System Pre-amplifier | Installation and Operating Manual | Installation in rack
3
Installation in rack (system pre-amplifier)
Plena
Syste
mP
0 dB
-6 dB
-20 dB
re-am
plifier
Powe
r
/Line
Sele
ct
CD
AUX
Z1
+
Z4
+
Z2
Z5
Z3
Z6
Figure 3.1
The system pre-amplifier is delivered for tabletop use, but you can mount it in a 19" rack.
If you mount the pre-amplifier in a rack, you must:
• use the mounting brackets delivered with the unit.
• remove the 4 feet from the bottom of the unit. (Without the feet the unit is 2U high.)
Bosch Security Systems | 2003-09 | 3922 988 99483en
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Plena System Pre-amplifier | Installation and Operating Manual | External settings and connections
4
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External settings and connections (system pre-amplifier)
4.1 Connect the DC supply (battery)
6
Call
Activ
e Ca
ll In
Appa
ra
conn tus deliv
ere
ected
for 2 d
30V-
In
00V
0
Zone
100V
115V
- 23
0
Tel/E
3
Zone
4
100V
0 1
00V
0
DC O
ut
DC In
/Line
MG
Trigge
r1
Trigge
r2
LBB1
925/0
8900
0
115/21925 0005
30V~
No.
,50/6
0Hz
0
1.Au
dio+
2.0V
5.Allc
all
3.Au
dio- 6.Data4.24V
7.Da
ta+
d.c.
8.Ch
s.GN
/Line
14
3
5
PCAu
D
dioIn
RS23
3
2
5
2
Zone
2
6
8
5
2
1
R
3
GND
1
GND
1
-
+
100V
2
Zone
3
4
Activ
e Call
Appa
ratus
conn
ected delivered
for 230V
- 115V
- 230V
-
In
In
100V
Zone
0
2
Zone
100V
3
Zone
0
4
100V
DC Out
0
100V
0
100V
0
100V
0
DC In
0
+24V
-
+24V
-
Rated
input
Power
:
T1.0A 50VA
L 250V
Warni
ng
0
This
+24V
-
+
Call
0
1
ut
100V
0
6
Aux
+
7
3
Out
100V
12 V
D
5
L
4
MasterO
0V
Zone
CD
1
+24V
-
Warni
ng
This
appa
ratus
-
must
be
appara
tus must
be earthe
d
earth
ed
F
F = 1.5A
+
-
C
12 V
D
C
Figure 4.1
The system pre-amplifier has a 24 Vdc input (terminal screw), which you can use to connect a back up power
supply, e.g. batteries. You can earth the unit to increase the electrical stability of the system.
Caution
The connection cable must have an in-line fuse. Use the type of fuse as mentioned in the illustration.
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Plena System Pre-amplifier | Installation and Operating Manual | External settings and connections
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4.2 Connect a microphone
Tel/E
MG
/Line
Tel/E
MG
0
r1
Trigg
er 1
Trigg
er 2
LBB1
925/0
8900
0
115/21925 0005
30V~
No.
,50/6
0Hz
1.Au
dio+
2.0V
5.Allc
all
3.Au
dio- 6.Data4.24V
7.Da
ta+
d.c.
8.Ch
/Line
s.GN
D
Trigge
Trigge
14
r2
3
5
PCAu
dioIn
RS23
3
2
CD
Zone
1
5
2
L
4
2
0
1.Au
di
2.0V o+ 5.Allc
al
3.Au
6.Dat l
di
4.24 o- 7.DataVd.c.
a+
8.Chs
/Line
.GND
14
3
5
7
3
2
R
3
Zone
GND
1
GND
1
-
+
100V
2
3
6
Call
Activ
e Call
In
0
100V
Zone
100V
Zone
2
100V
0
Zone
1
Zone
0
100V
0
2 DC
Out
100V
0
z
100V
Appa
conn ratus delivi
ected
red
for 230V
In
- 115V
- 230V
-
0
1
Out
0
100V
DC In
0
+24V
-
+24V
-
Rated
input
Power
:
T1.0A 50VA
L 250V
Warni
ng
This
PCAu
dioIn
RS2
32
1
2
1
4
MasterO
ut
3
5
6
8
5
5
Aux
+
/Line
LB B1
92
89 00 5/ 00
19 25
115/23
00 05
No. 0V~,50/6
0H
appara
tus must
be earthe
d
CD
L
4
+
2
7
3
6
8
5
2
1
R
-
GND
1
3
4
-
GND
1
3
Maste
rOut
Out
GND
GND
180 5-pole DIN
180 3-pole XLR
Figure 4.2
The input channel has 2 possible balanced inputs, use one of these inputs to connect a microphone or a line-level
source. If you use an input make sure that the 'mic/line' switch is in the correct position.
Note
If you want to use the priority feature, you must use a microphone or line-level source with a priority contact
on pin 4 and 5 of the 5-pole DIN plug.
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Plena System Pre-amplifier | Installation and Operating Manual | External settings and connections
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4.3 Connect the call stations
Tel/EMG
Trigger
/Line
Tel/E
MG
Trigg
er 1
1
Trigger
2
LBB19
89001 25/00
115/2392500 05
No. 0V~,50/60Hz
0
1.Audio
2.0V + 5.Allca
3.Audio
6.Data ll
4.24Vd - 7.Data.c. 8.Chs. +
GND
/Line
Trigg
14
er 2
3
5
PCAud
ioIn
RS232
Zone
CD
3
1
5
2
Zone
2
3
5
6
8
5
2
R
1
-
GND
1
1
-
Call
Active
Call
+
100V
2
3
Maste
6
GND
3
4
Zone
1
In
In
100V
2
115V-
230V-
0
Zone
100V
3
Out
Zone
0
100V
4
DC Out
100V
Appara
connectus delivire
ted for
d
230V-
0
Zone
rOut
0
DC In
0
100V
0
100V
0
100V
0
+24V+24V-
1.Aud
2.0V io+ 5.Allc
all
3.Aud
6.Data
4.24Vio- 7.Datad.c.
8.Chs +
.G
14
3
LB B1
92
89 00 5/0 0
115/219 25 00 05
30V~
No.
,50/60
Hz
0
/Line
Aux
+
7
/Line
5
L
4
Rated
input
Power
:
T1.0AL 50VA
250V
Warning
This
apparatu
s must
PCAu
ND
dioIn
RS23
2
3
be earthed
CD
1
5
2
L
4
+
7
3
2
6
8
5
2
R
1
-
GND
1
3
4
Maste
rOut
Out
A
B
B
A
Figure 4.3
You can connect 2 Plena Call Stations directly to the system pre-amplifier. To connect up to the maximum of 8 call
stations you must use a loop through connection. The loop through can contain both types of call stations.
4.4 Connect an emergency input line
Tel/EM
/Line
G
Trigge
r1
Trigge
r2
LBB19
89001 25/00
115/2392500 05
No. 0V~,50/60H
0
1.Aud
2.0V io+ 5.Allc
all
3.Aud
6.Data
4.24Vio- 7.Datad.c.
8.Chs +
.GND
/Line
14
3
5
PCAud
z
ioIn
RS232
3
1
5
2
Zone
CD
5
L
4
Zone
2
6
8
5
2
1
R
3
Call
Active
GND
1
GND
1
-
+
100V
2
3
4
6
Aux
+
7
3
Call
Appar
conneatus delivir
cted
ed
for 230V-
In
In
0
115V-
100V
230V-
0
Mast
erOu
t
Zone
1
Zone
100V
2
Out
100V
Zone
0
1
0
Zone
100V
2 DC
Out
100V
0
100V
0
100V
0
DC In
0
+24V+24V-
Tel/E
MG
/Line
This
er 1
Trigg
er
PCAu
ND
dioIn
3
1
5
2
be earthed
LB B1
92
89 00 5/ 00
19 25
115/23
00 05
No. 0V~,50/6
0Hz
0
/Line
3
5
apparat
us must
2
1.Au
dio
2.0V + 5.Al
lca
3.Au
6.Da ll
dio
ta
4.24 - 7.Da Vd.c.
ta
8.Ch +
s.G
14
Rated
Power input
T1.0AL: 50VA
250V
Warnin
g
Trigg
RS23
2
CD
L
4
7
3
6
8
5
2
1
R
4
Maste
rOut
Out
Figure 4.4
You can use this input for emergency announcements and/or signals. This channel has the highest priority and is
always transmitted to all zones. The emergency line has it's own volume control on the rear, this volume is not
affected by the master volume. If a priority microphone, call station, emergency input or trigger input is activated,
the Call Active relay is closed and the override contacts of the selected loudspeaker zones are activated.
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Plena System Pre-amplifier | Installation and Operating Manual | External settings and connections
en | 16
4.5 Connect audio sources for background music
Tel/EM
/Line
G
Trigge
r1
Trigge
r2
LBB1
925/0
89001
0
115/2 92500 05
30V~,
No.
50/60
0
1.Aud
2.0V io+ 5.Allc
all
3.Aud
6.Dat
4.24Vio- 7.Datad.c.
a+
8.Chs
.GND
/Line
14
3
5
Hz
PCAu
dioIn
RS232
3
1
5
2
Zone
CD
L
4
2
6
8
5
2
1
5
Zone
+
7
3
R
Aux
3
Mast
erOu
1
GND
1
-
Call
Active
+
2
Zone
100V
1
100V
2
0
100V
0
Appar
conneatus delivir
cted
ed
for 230V-
In
100V
0
115V-
230V-
0
Zone
100V
Call
In
0
Zone
t
Out
Tel/E
MG
6
GND
3
4
100V
0
Zone
4
3
100V
100V
DC Out
0
DC In
0
+24V+24V-
Trigg
Warnin
er 1
This
Trigg
Rated
Power input
T1.0AL: 50VA
250V
g
apparat
us must
be earthed
er 2
LB B1
92
89 00 5/0 0
115/219 25 00 05
30V~
No.
,50/60
Hz
0
1.Aud
2.0V io+ 5.Allc
all
3.Aud
6.Data
4.24Vio- 7.Datad.c.
8.Chs +
.GND
R
/Line
PCAu
dioIn
1
RS23
2
CD
L
4
+
2
7
3
6
8
5
2
R
1
3
Aux
GND
1
GND
1
-
+
2
100V
0
3
4
Maste
Zon
2 rOut
Out
100V
Plena
BGM
Power
0
100V
0
100V
Source
Repeat
Program
Folder
CD/MP
3
W
FM/AM
M1/6
M2/7
M3/8
M4/9
M5/10
Scan
Program
TAPE
Figure 4.5
The system pre-amplifier has 3 connections for background music (CD, Tape & Auxiliary). You can connect 3 units
but only one of the inputs is used depending on the selection switch at the front. It is also possible to use the output
of a PC soundcard to supply music or time signals to the system pre-amplifier. To do so connect the soundcard
output to the 'PC Audio ln' input.
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Plena System Pre-amplifier | Installation and Operating Manual | External settings and connections
en | 17
4.6 Connect to a booster
Tel/E
MG
/Line
Trigg
er 1
Trigg
er 2
LBB 192
890 019 5/00
250 005
115/230V
~,50/60H
No.
0
z
1.Au
dio+
2.0V
5.Allcall
3.Au
dio- 6.Data4.24
Vd.c 7.Data+
. 8.Ch
/Line
s.GN
14
3
5
PCA
udioIn
D
3
1
5
2
RS2
32
Zone
5
CD
L
4
Zone
6
Aux
+
2
7
3
6
8
5
2
1
R
3
Call
GND
1
GND
1
-
+
100V
2
3
4
100V
0
Zone
1 Zon
e2
Out
100V
0
100V
Activ
e Call
Apparat
conn us delivired
ected
for 230V
In
- 115V230V
-
In
0
Master
Out
Zone
1
Zone
2
100V
DC Out
0
DC In
0
0 100V
0 100V
100V
0
+24V-
+24V-
Rate
Powed input
T1.0Ar : 50VA
L 250V
Warn
ing
This
appa
ratus
must
+
1
100V
3
0V
GND
2
GND
1
3
+
2
be earth
ed
100V
100V
line out
70V
0
230V
- 240V
0
8
24V
-
DC IN
+
Line
fuse
250V
T1A
Warn
This
+
1
100V
0V
3
GND
2
GND
1
3
ing
appa
ratus
must
Apparat
conn us deliv
ected
ered
for 230V
-
be earth
ed
+
2
100V
100V
line out
70V
0
230V
- 240V
0
8
24V
-
DC IN
+
Line
fuse
250V
T1A
Warn
This
ing
appa
ratus
must
Apparat
conn us deliv
ected
ered
for 230V
-
be earth
ed
Figure 4.6
The system pre-amplifier has a master and a music output that can be connected to 1 or 2 boosters for single or dual
channel operation. For single channel operation connect the Master output to the booster. The signal from the
booster must be returned to the 'Call in' (terminal) of the system pre-amplifier. For dual channel operation you must
also connect the Music output to a second booster. The signal from this booster must be returned to the 'Music in'
(terminal) of the system pre-amplifier.
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Plena System Pre-amplifier | Installation and Operating Manual | Operation
5
en | 18
Operation (system pre-amplifier)
Plena
0 dB
-6 dB
Syste
m
Pre-a
mplifie
r
-20 dB
Powe
r
/Line
Selec
t
CD
AUX
Z1
+
Z4
+
Z2
Z5
Z3
Z6
Figure 5.1
You can adjust the volume and tone for the mic/line input with the knobs on the left panel. The knobs for
background music selection, volume and tone are on the centre panel. To select the zones to which the background
music must be send press the keys on the right hand panel. When a zone is active the indication LED is on.
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Plena System Pre-amplifier | Installation and Operating Manual | About the call stations
6
en | 19
About the call stations
Figure 6.1
Gain Preset
JP2
6 dB
JP3
0 dB
JP4
-15 dB
Speech filter ON/OFF
Mic.
JP5
+
Balance out
1
3
Phantom Supply
P.S.
4
Power Supply
Green Amber
-
2
Press to Talk
Amber
All Zone
RS-485
Amber
M.C.U.
Z1
6
Driver/Receiver
7
Amber
Z2
Amber
Z3
Priority
Amber
Z4
Amber
Z5
Internal Chime
Select
External Chime
Select
8
Chassis Ground
ON
1 2
5
NC
3 4 5 6
Priority level/chime tone pre-set
7 8
LBB1946
LBB1941
Amber
Z6
Figure 6.2
The Plena Call Stations must be used in combination with the system pre-amplifier LBB 1925. Both call stations
have a loopthrough connection to add an additional call station. The 6-zone call station (LBB 1946) has the
possibility to send a message to one zone, a group of zones or all zones. The all-call call station (LBB 1941) can only
send a message to all zones.
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Plena System Pre-amplifier | Installation and Operating Manual | About the call stations
en | 20
6.1 Controls & Connections (top)
5
1
2
3
4
1
4
Figure 6.3
1
2
3
4
5
Microphone
Zone selection keys with indication LED
All zone selection key with indication LED
Press to talk key with indication LED
Labels for zone indication.
Note
An editable label template (MS Word) can be downloaded from
www.boschsecuritysystems.com / www.philipscsi.com.
The call stations LBB 1941 and LBB 1946 can be connected in a loop-through arrangement to the LBB 1925. Each
input of the LBB 1925 can have up to 4 call stations. The call station cable may be extended up to 500 m from the
LBB 1925, using shielded CAT-5 quality cable (four twisted pairs with one overall shield) and 8-pin DIN
connectors. One twisted pair for power supply connection (DIN pin 4: 24Vdc, pin 2: ground), one twisted pair for
data communication (DIN pin 6: data -, pin 7: data +), one twisted pair for audio (DIN pin 1 and pin 3) and one
twisted pair for all-call select (DIN pin 5) and connection to chassis ground (DIN pin 8).
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Plena System Pre-amplifier | Installation and Operating Manual | Internal settings
7
en | 21
Internal settings (call stations)
7.1 Chime
CN3
0dB
-15dB
CN2
JP5
OFF ON
+6dB
U4
Priority
S8-1
S8-2
Priority 2 (highest)
0
1
Priority 1 (lowest)
1
0
not allowed
0
0
not allowed
1
1
VR1
JP2
JP3
JP4
CN1
ON
S8 1
8
Figure 7.1
The chime for the all-call call station (LBB 1941) is set inside the LBB 1925 system pre-amplifier. The chime for the
6-zone call station (LBB 1946) is set within the call station with DIP switch S8 (bit 3 to 8). The chime volume can be
set with VR1. You can find the chime tone tables at the end of the document. The priority for a call station (LBB
1946) can be set with the switch S8 (bit 1 and 2) as shown in figure 7.1.
7.2 Setting sensitivity & speech filter
Symm.
Output level
(dBV)
Input/Output ratio 20:1
+6.8dBV
+6dBV
+6 dB
-15 dB
0 dB
Jumper
Settings
JP2
+6dB
JP3
0dB
JP4
-15dB
-3dBV
+79
+85
+94
+100
+124
Acoustical input level (dBSPL)
Figure 7.2
The sensitivity of the call station microphone can be set with the jumpers JP2, JP3 and JP4. Which jumper activates
which sensitivity can be found in the table. The speech filter can be enabled or disabled with jumper JP5.
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Plena System Pre-amplifier | Installation and Operating Manual | Operation
8
en | 22
Operation (call stations)
Figure 8.1
The call station LBB 1941 can only send a call to all zones. With the call station LBB 1946 you can select to which
zones your call is sent. To do so press the zone keys or the all-zone key. When a zone is selected the indication LED
is on. To send a call press the PTT key and wait until the indication LED is green, then talk in the microphone. The
indication LED can give the following indications.
Indication LED of PTT button
Call station type
Yellow
The system is occupied.
Only LBB 1946
Yellow flashing
The PTT key is pressed, but no zones were selected.
Only LBB 1946
Green
The microphone is on.
Both
Green flashing
The chime tone is active.
Only LBB 1946
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Plena System Pre-amplifier | Installation and Operating Manual | Technical data
9
Technical data
9.1 System pre-amplifier LBB 1925
9.1.1 Electrical
Mains voltage
Max mains power consumption
Battery voltage
Max battery current
230 V/115 Vac, (15%, 50/60 Hz)
50 VA
24 Vdc, +20%/-10%
1A
9.1.2 Performance
Frequency response
Distortion
Call channel
Bass control
Treble control
BGM channel
Bass control
Treble control
Channel separation at 1kHz
Priority mute
50 Hz - 20 kHz (+1/-3 dB)
<0.5%
-6/+6 dB at 160 Hz
0/+12 dB at 5 kHz
0/+20 dB at 100 Hz
0/+18 dB at 15 kHz
>65 dB
>50 dB
9.1.3 Inputs
Call station inputs (8-pin DIN, balanced, for LBB1941/00 and/or LBB1946/00)
Sensitivity
1V
Data
RS485, 1200, N, 8, 1, 0
Mic/Line input (3-pin XLR/5-pin DIN, balanced)
Sensitivity
1 mV (microphone), 200 mV (line)
Impedance
>1 kOhm (microphone), >5 kOhm (line)
S/N (flat at max volume)
>63 dB (microphone), >70 dB (line)
S/N (flat at min volume/muted)
>75 dB
CMRR
>40 dB (50 Hz - 20 kHz)
Headroom
>25 dB
Speech filter
-3 dB at 315 Hz, high-pass, 6 dB/oct
Phantom power supply
16 V via 1.2 kOhm, in microphone mode only
BGM input (Cinch, unbalanced, stereo converted to mono)
Sensitivity
500 mV (CD), 200 mV (aux, tape)
Impedance
22 kOhm
S/N (flat at max volume)
>70 dB
S/N (flat at min volume/muted)
>75 dB
Headroom
>25 dB
PC input (Cinch, unbalanced, stereo converted to mono)
Sensitivity
1V
Impedance
22 kOhm
S/N
>70 dB
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Plena System Pre-amplifier | Installation and Operating Manual | Technical data
Emergency/telephone input (Screw, balanced)
Sensitivity
100 mV to 1V adjustable
Impedance
>10 kOhm
VOX threshold
50 mV
S/N
>65 dB
9.1.4 Outputs
Master output (3-pin XLR, balanced)
Nominal level
Impedance
1V
<100 Ohm
BGM output (3-pin XLR, balanced)
Nominal level
Impedance
1V
<100 Ohm
Tape output (Cinch, 2x mono)
Nominal level
Impedance
350 mV
3.3 kOhm
Headphone output (6.3-mm jack stereo, signal mono)
Nominal level
3V
Impedance
<100 Ohm
Control
RS232 (9-pin D-sub)
Baud rate
19K2
Trigger inputs (Screw)
Activation
contact closure
9.1.5 Relays
Priority relay contacts
Zone output relay contacts
DC supply output voltage
100 V, 2 A
100 V, 2 A
24 V, 250 mA max
9.1.6 Environmental conditions
Operating temperature range
Storage temperature range
Relative humidity
-10 to +55°C
-40 to +70°C
<95%
9.1.7 General
EMC emission
EMC immunity
Dimensions
Weight
19” mounting brackets included
acc. to EN 55103-1
acc. to EN 55103-2
100 x 430 x 270 mm (19” wide, 2U high)
approx. 5 kg
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Plena System Pre-amplifier | Installation and Operating Manual | Technical data
9.2 All-call call station LBB 1941
9.2.1 Electrical
Power supply
Voltage range
Current consumption
18 to 24 V (24 V supplied by LBB1925/10)
<30 mA
9.2.2Performance
Nominal sensitivity
Nominal output level
Maximum input sound level
Gain preset
Limiter threshold
Compression ratio limiter
Distortion
Equivalent input noise level
Frequency response
Speech filter
Output impedance
85dBSPL (gain preset 0dB)
700mV
110 dB SPL
+6/0/-15 dB
2V
1:20
<0.6% (maximum input)
25 dBA SPL
100 Hz to 16 kHz
-3 dB at 315 Hz, high-pass, 6 dB/oct
200 Ohm
9.2.3Environmental conditions
Operating temperature range
Storage temperature range
Relative humidity
-10 to +55°C
-40 to +70°C
<95%
9.2.4General
EMC emission
EMC immunity
Dimensions
Weight
Cable length
acc. to EN 55103-1
acc. to EN 55103-2
40 x 100 x 235 mm (base)
390 mm stem length (with microphone)
approx. 1 kg
5 m (may be extended up to 500 m
using CAT-5 style shielded cable)
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Plena System Pre-amplifier | Installation and Operating Manual | Technical data
9.3 6-zone call station LBB 1946
9.3.1 Electrical
Power supply
Voltage range
Current consumption
18 to 24 V (24 V supplied by LBB1925/10)
< 30 mA
9.3.2Performance
Nominal sensitivity
Nominal output level
Maximum input sound level
Gain preset
Limiter threshold
Compression ratio limiter
Distortion
Equivalent input noise level
Frequency response
Speech filter
Output impedance
85 dB SPL (gain preset 0 dB)
700 mV
110 dB SPL
+6/0/-15 dB
2V
1:20
< 0.6% (maximum input)
25 dBA SPL
100 Hz to 16 kHz
-3 dB at 315 Hz, high-pass, 6 dB/oct
200 Ohm
9.3.3Selections
Chimes
Priorities
18 different combinations
2 different priorities
9.3.4Environmental conditions
Operating temperature range
Storage temperature range
Relative humidity
-10 to +55°C
-40 to +70°C
< 95%
9.3.5General
EMC emission
EMC immunity
Dimensions
Weight
Cable length
acc. to EN 55103-1
acc. to EN 55103-2
40 x 100 x 235 mm (base)
390 mm stem length (with microphone)
approx. 1 kg
5 m (may be extended up to 500 m
using CAT-5 style shielded cable)
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Plena System Pre-amplifier | Installation and Operating Manual | Chime tone tables
en | 27
Chime tone tables
Trigger 1
B1
S301-1
B2
S301-4 S301-3
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
S303-8
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
S301-8
0
0
0
0
1
1
1
1
S302-6
0
1
0
1
0
1
0
1
S301-2
Trigger 2
Slow whoop 500 to 1200Hz sweep in 1 s and pause for 1 second
Din alarm 1200 to 500Hz sweep in (1s)
Evacuation 554Hz (100ms), 440Hz (400ms)
Immediate danger 600Hz (200ms), pause (200ms)
Fire alarm 440Hz (12s on, 12s off)
600Hz continuous
Two-tone alarm 440Hz (1s), 554Hz (1s)
Pulse alarm 1000Hz (300ms), pause (200ms)
1.2kHz (1s)
554Hz (2s)
440Hz (4s)
554Hz (2s)
554Hz (1s), 440Hz (1s)
392Hz (1s), 523Hz (1s), 659Hz (2s)
554Hz (1s), 440Hz (1s), 493Hz (1s), 330Hz (2s)
659Hz (1s), 523Hz (1s), 392Hz(1s), 330Hz (2s)
Tone LBB 1941
No Chime
554Hz (1s)
554Hz (1s), 440Hz (1s)
392Hz (1s), 523Hz (1s), 659Hz (2s)
554Hz (1s), 440Hz (1s), 493Hz (1s), 330Hz (2s)
196Hz (1s), 262Hz (1s), 330Hz (1s), 392Hz (2s)
392Hz (1s), 523Hz (1s), 659Hz (2s) and release tone in reverse order
196Hz (1s), 262Hz (1s), 330Hz (1s), 392Hz (2s) and release with
tones 659Hz (1s), 523Hz (1s), 392Hz (1s), 330Hz (2s)
Bosch Security Systems | 2003-09 | 3922 988 99483en
S301-7
0
0
1
1
0
0
1
1
A1
S302-8
S302-7
A2
S303-7
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Plena System Pre-amplifier | Installation and Operating Manual | Chime tone tables
LBB1946 DIP-SWITCH setting
for chime and priority
554Hz (1s), 440Hz (1s)
554Hz (1s), 440Hz (1s), 493Hz (1s),
330Hz (2s)
196Hz (1s), 262Hz (1s), 330Hz (1s),
392Hz (2s)
No Chime
440Hz (1s)
554Hz (1s)
392Hz (1s), 523Hz (1s), 659Hz (2s)
392Hz (1s), 523Hz (1s), 659Hz (2s)
and release with tones in reverse order
554Hz (1s), 440Hz (1s) and released
with 330Hz (1s), 440Hz (1s)
554Hz (1s), 440Hz (1s), 493Hz (1s),
330Hz (2s) and release with tone in
reverse order
554Hz (1s), and release with
440Hz (1s)
196Hz (1s), 262Hz (1s), 330Hz (1s),
392Hz (1s) and release with
659Hz (1s), 523Hz (1s), 392Hz (1s),
330Hz (2s)
440Hz (0.5s)
554Hz (0.5s), 440Hz (0.5s)
392Hz (0.5s), 523Hz (0.5s),
659Hz (0.5s)
392Hz (0.5s), 523Hz (0.5s), 659Hz
(0.5s) and release with tone in reverse
order
554Hz (0.5s), 440Hz (0.5s),
493Hz (0.5s), 330Hz (1s)
554Hz (0.5s), 440Hz (0.5s),
493Hz (0.5s), 330Hz (1s) and release
with tone in reverse order
196Hz (0.5s), 262Hz (0.5s),
330Hz (0.5s), 392Hz (0.5s) and
release with reverse 659Hz (0.5s),
523Hz (0.5s) 392Hz (0.5s),
330Hz (1s)
Priority level 2
Priority level 1
No allowed
en | 28
Chime selection
BIT8
0
1
BIT7
1
0
BIT6
x
x
BIT5
x
x
BIT4
x
x
BIT3
x
x
Priority
selection
BIT2
BIT1
-
1
1
x
x
x
x
-
-
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
0
0
1
0
1
0
x
x
x
x
x
x
x
x
0
0
0
1
0
1
x
x
0
0
0
1
1
0
x
x
0
0
0
1
1
1
x
x
0
0
1
0
0
0
x
x
0
0
0
0
0
0
1
1
1
0
0
0
0
1
1
1
0
1
x
x
x
x
x
x
0
0
1
1
0
0
x
x
0
0
1
1
0
1
x
x
0
0
1
1
1
0
x
x
0
0
1
1
1
1
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
1
0
1
0
1
1
Bosch Security Systems | 2003-09 | 3922 988 99483en
For more information visit
www.boschsecuritysystems.com
© Bosch Security Systems B.V.
Data subject to change without notice
2003-09 | 3922 988 99483en