Bosch Appliances LBB 1914/10, LBB 1912/10, LBB 1906/10, LBB 1903/10 Controls and connections rear

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Plena Mixer Amplifier Installation and Operating Manual About the mixer amplifier

en 9

1.2 Controls and connections (rear)

 

7

 

8

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11

12

 

13

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19

 

Tel/Emer.

 

L

 

 

 

 

 

 

 

Out

 

 

 

 

 

 

 

 

 

 

115V

230V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

In

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CD

 

 

Aux

Line Out 1V

 

 

Inc

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0 2

 

 

+

GND

GND

+

 

 

 

 

 

 

 

 

Call/Mix

 

 

 

Call Only

Mix Only 24VDCIn

 

 

 

 

 

3

1

1

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

3

 

Mic/Line

 

 

Mic/Line

 

100V

0

70V

0

8

0

100/70V 0

100/70V 0

 

 

Chime

 

 

 

 

 

 

 

 

 

 

 

 

 

1

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

2

 

 

 

3

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

1

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6

15

 

 

 

 

 

 

 

 

16 17 18

 

 

 

 

 

 

 

 

 

 

 

 

Call/Mix

Zone 1

Zone 2

 

Call Only Mix Only 24VDCIn

 

 

 

 

 

 

 

 

 

 

 

 

 

100/70V/8

0

100/70V 0 100/70V 0

100/70V 0

100/70V 0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Only for LBB1914/10

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 1.3

1 Chime ON/OFF switch

2 Priority microphone input (5-pole DIN/balanced with Phantom power)

3 Input 1 microphone input (6.3 mm phono jack/ balanced with Phantom power)

4Microphone input (XLR/balanced with Phantom power in microphone mode)

5Microphone input (6.3 mm phono jack/balanced)

6 Input Mic./Line switch

7 Emergency connection input terminals

8 Emergency volume pre-set

9 CD input (2x phono connectors)

10 Tape input (2x phono connectors)

11 Auxiliary input (2x phono connectors)

12Line output (XLR)

13Tape output (2x phono connectors)

14Insertion input/output (2x phono connectors)

15Loudspeaker output terminals and 24 Vdc power supply terminals

16Mains connector (3-pole)

17Earth connection screw

18Mains fuse

LBB1903 T1A (230 Vac) / T2A (115 Vac) LBB1906 T1.6A (230 Vac) / T3.15A (115 Vac) LBB1912 T2.5A (230 Vac) / T5A (115 Vac) LBB1914 T2.5A (230 Vac) / T5A (115 Vac)

19Mains voltage 115/230 V switch

Bosch Security Systems 2003-09 3922 988 92883en

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Contents Plena Mixer Amplifier Page Important safeguards About this manual Safety precautionsTable of contents Bosch Security Systems 2003-09 3922 988 92883en About the mixer amplifier Phantom PowerControls and connections front Controls and connections rear Internal settings Setting the VOX for microphone inputSetting the speech filters Setting the chime volume Setting the output voltage for LBB1903, LBB1906 and LBB1912Setting the output voltage for LBB1914 Installation in rack External settings and connections Connect the DC supply batteryPriority microphone 115V/230V Chime ON/OFF-switchEmergency input Microphone inputsMusic source inputs Connecting the line outputLBB1912/10 Connecting loudspeakers2Low impedance loudspeakers Mains connectionOperation of mixer amplifier Volume and tone controlSource selection Zone selection LBB1914/10 onlyElectrical Technical dataPerformance InputsEnvironmental conditions OutputsGeneral Page For more information visit