Bosch LBB 1906/10 User's Manual | Page 9

Bosch Car Amplifier User's Manual - LBB 1906/10.
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Bosch Security Systems | 2003-09 | 3922 988 92883en

Plena Mixer Amplifier | Installation and Operating Manual | 

en | 9

1.2 Controls and connections (rear)

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)

4 Microphone input (XLR/balanced with Phantom 

power in microphone mode)

5 Microphone 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)

12 Line output (XLR)
13 Tape output (2x phono connectors)
14 Insertion input/output (2x phono connectors)
15 Loudspeaker output terminals and 24 Vdc power 

supply terminals

16 Mains connector (3-pole)
17 Earth connection screw
18 Mains 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)

19 Mains voltage 115/230 V switch

3

1

1

4 5

L

R

CD

Aux

Line Out 1V

Mic/Line

Mic/Line

Inc

Out

In

0

0

Chime

Tel/Emer.

2

1

GND

2

3

1

+

+

GND

2

3

2

3

4

230V

115V

Call/Mix

24VDCIn

Call Only Mix Only

100V 0

70V

0

100/70V 0 100/70V 0

8

0

7

1

2

4

4

3

5

5

4

5

15

15

Only for LBB1914/10

16

18

6

6

8

9

10

11

12

13

14

19

17

24VDCIn

Call/Mix Zone 1

Zone 2 Call Only Mix Only

100/70V/8 0 100/70V 0 100/70V 0 100/70V 0 100/70V 0

About the mixer amplifier

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