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Plena Booster Amplifier

Installation and Operating Manual

LBB 1930, LBB 1935,
LBB 1938

Содержание LBB 1930

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

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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...

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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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