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Bosch Security Systems | 2003-09 | 3922 988 92983en

Plena Booster Amplifier

 | Installation and Operating Manual | Important safeguards

en

 | 3

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.

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.

Содержание LBB 1930

Страница 1: ...Plena Booster Amplifier Installation and Operating Manual LBB 1930 LBB 1935 LBB 1938 en ...

Страница 2: ......

Страница 3: ...e 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 electrici...

Страница 4: ...ty precautions 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 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 u...

Страница 5: ... Internal setting LBB1938 only 10 3 Installation in rack 11 4 External settings and connections 12 4 1 Connect the DC supply battery 12 4 2 Connecting the line input and loopthrough 13 4 3 Connecting the priority input and using the control terminals LBB1938 only 14 4 4 100 V slave input 15 4 5 Connecting loudspeakers 16 4 5 1 Constant voltage loudspeakers 16 4 5 2 Low impedance loudspeakers 17 4 ...

Страница 6: ...Plena Booster Amplifier Installation and Operating Manual Table of Contents en 6 Bosch Security Systems 2003 09 3922 988 92983en ...

Страница 7: ...put Loopthrough Temp Sensor VU 230V 240V 100V 70V 8Ohm 0 0 Slave Input 100V 100V 0 LBB1938 Fuse 10A limiter Inrush current DC Fuse 40A Power Power Delay Battery DC In 24V Input 1 Priority Loopthrough 1 Loopthrough 2 Input 2 Program Temp Sensor VU 230V 100V 70V 8Ohm 0 0 70V 100V Input 1 Priority 2 24V Input 1 0V Input 2 0V Mute 2 24V Enable Input 2 Enable Slave Input 100V 100V 0 F701 F702 No Priori...

Страница 8: ...inputs are balanced and have a loopthrough facility a 100 V slave input allows for connection to existing loudspeaker lines The LBB1938 has double inputs with a priority function and priority controlled outputs 1 1 Controls and indicators front Figure 1 3 Figure 1 4 1 VU meter LED bar 2 Power on indication LED green 3 Power on off 4 Tone control channel 1 to 4 5 Volume channel 1 to 4 6 Master volu...

Страница 9: ...nput 1 Priority Slave Input 100V Input 2 Enable 100V 0 Priority Only No Priority 100V 70V 0 0 8 100V 100V 0 0 Direct Output Input Input Input 2 Program Input 1 Priority 2 24V Default Off GND 2 24V Default On GND 100V 0 70V 0 8ohm 100V 70V Priority Only 0 0 No Priority Priority Inpu t 1 Priority Loopthrough 1 Input 2 Program Loopthrough 2 Input 1 Priority 2 24V Inpu t 1 0V Input 2 Input 2 Enable 2 ...

Страница 10: ...et to 70 V or 100 V To this end a high power fuse inside the unit is used as a voltage selector Insert the high power fuse into fuse holder F701 for 100 V selection default setting or into fuse holder F702 for 70 V selection This selection does not affect the output voltage of the loudspeaker direct outputs Caution Never insert two fuses into F701 and F702 simultaneously Internal setting LBB1938 o...

Страница 11: ... the rack does not exceed 55 C In case of rack mounting removal of the top cover of a booster amplifier is allowed to improve the ventilation In such a case always use the shimming washers that come with the brackets and make sure to comply with the safety instructions The amplifier has a built in temperature controlled fan for reliable operation at high output power for a prolonged time If the in...

Страница 12: ...LBB1930 120W F F15A LBB1935 240W F F30A 230V 240V 100V 100V 100V 0V 70V 0 0 8 Line fuse 250V T1A Apparat us delivere d connect ed for 230V This apparatus must be earthed Warning 24V DC IN line out 1 2 3 1 2 3 GND GND External settings and connections Apparatus delivered connected for 230V Rated input Line fuse T10L250V power 1600V This apparatus must be earthed Warning Priority Controlled Output N...

Страница 13: ... 0 100V 0 Appara tus deliver ed connec ted for 230V Rated input Line fuse T10L25 0V power 1600V This appara tus must be earthed Warnin g Priority Contro lled Output No priority Input 1 Prior ity Input 1 Priority Slave Input 100V Input 2 Enable Input 2 Prog ram Priority only Direct Output 24VDC IN Input Loopth rough Loopth rough Input 100V 70V 0 0 8 100V 0 100V 0 LBB1938 LBB1938 LBB1925 10 LBB1930 ...

Страница 14: ... zone relays to the LBB1938 input 1 priority control terminals 15 Each booster serves one loudspeaker zone Each zone can be OFF or receive music or a call External settings and connections 3 Tel EMG 0 L R 1 4 5 Line Line Trigger 1 Trigger 2 PCAudoln 1 Audio 2 0V 3 Audio 4 24Vd c 5 Allcall 6 Data 7 Data 8 Chs GND RS232 CD Aux MasterOut Out 100V 0 100V 0 100V 0 100V 0 100V 115V 230V Rated Input Powe...

Страница 15: ...tings and connections 230V 240V 100V 70V 0 0 8 100V 100V 0V Line fuse 250V T1A Apparatus delivered connected for 230V 24V DC IN line in This apparatus must be earthed Warning line out 1 2 3 1 2 3 GND GND LBB1930 LBB1935 Input 1 Priority Slave Input 100V Input 2 Enable Priority Only No Priority 100V 70V 0 0 8 100V 100V 0 0 Direct Output Input Input Input 2 Program Input 1 Priority 100V 0 70V 0 8ohm...

Страница 16: ...ine fuse 250V T1A Appar atus delive red conne cted for 230V This apparat us must be earthed Warnin g 24V DC IN line out 1 2 3 1 2 3 GND GND Priority Only No Priority 100V 70V 0 0 8 100V 100V 0 0 Direct Output Priority ControlledOutput Appara tus delivere d connec ted for 230V Rated input Line fuse T10L25 0V power 1600V This apparat us must be earthed Warnin g Priorit y Contr olled Outpu t No prior...

Страница 17: ...se the supplied mains cord to connect the system to the mains supply Note LBB 1930 and LBB 1935 only If necessary set the mains voltage switch 230 240 V 11 to the required voltage using a sharp object e g a small screwdriver 230V 240V 70V 0 0 8 Line fuse 250V T1A Apparatus delivered connected for 230V This apparatus must be earthed Warning 24V DC IN 230V 240V 100V 70V 0 0 8 Line fuse 250V T1A Appa...

Страница 18: ...the booster reaches a critical limit due to poor ventilation or overload an overheat protection circuit switches OFF the power stage LBB1938 only The overheat indicator 4 lights up if the power stage is switched OFF by the overheat protection circuit The battery operation indicator 3 lights up if the mains power supply is failing and the back up battery is in use Operation of booster amplifier Ple...

Страница 19: ...BB1935 50 19 A LBB1938 00 19 A Battery voltage 24 Vdc 20 10 Max battery current LBB1930 x0 6 A LBB1935 x0 11 A LBB1938 00 30 A 6 2 Performance Frequency response 50 Hz 20 kHz 1 3 dB 10 dB ref rated output Distortion 1 rated output 1 kHz S N flat at max volume LBB1930 x0 80 dB LBB1935 x0 85 dB LBB1938 00 90 dB 6 3 Inputs Line input 3 pin XLR 6 3 mm phone jack balanced LBB1930 x0 LBB1935 x0 Sensitiv...

Страница 20: ...BB1938 00 720 W 480 W 8 Ohm output LBB1930 x0 31 V 120 W LBB1935 x0 44 V 240 W LBB1938 00 62 V 480 W Output power 24 V battery operation 1 dB ref rated power 6 5 Environmental conditions Operating temperature range 10 to 55 C Storage temperature range 40 to 70 C Relative humidity 95 6 6 General EMC emission acc to EN 55103 1 EMC immunity acc to EN 55103 2 Acoustic noise level of fan LBB1930 x0 LBB...

Страница 21: ......

Страница 22: ...For more information visit www boschsecuritysystems com Bosch Security Systems B V Data subject to change without notice 2003 09 3922 988 92983en ...

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