Bosch LBB 1903/10 User Manual
Bosch Security Systems | 2003-09 | 3922 988 92883en
Plena Mixer Amplifier | Installation and Operating Manual |
en | 13
4
External settings and connections
4.1 Connect the DC supply (battery)
Figure 4.1
The mixer 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.
batteries. You can earth the unit to increase the electrical stability of the system.
4.2 Priority microphone
Figure 4.2
Caution
The connection cable must have an in-line fuse. Use the type of fuse as mentioned in the illustration.
The connection cable must have an in-line fuse. Use the type of fuse as mentioned in the illustration.
External settings and connections
115V/23
0V
Appara
tus deliv
ered
connecte
d for 23
0V-
Rated in
put
powe
r : 400V
A
This app
aratus
must
Warning
Call/Mi
x
24VD
CIn
Call Onl
y Mix O
nly
70
V0
100/70V
0 100/70
V 0
8
0
12 VDC
12 VDC
-
+
-
+
F
LBB1903 (30W); F=F5A
LBB1906 (60W); F=F8A
LBB1906 (60W); F=F8A
LBB1912 (120W); F=F15A
LBB1914 (120W); F=F15A
LBB1914 (120W); F=F15A
115V/23
0V
Apparatu
s deliver
ed
connec
ted for 2
30V-
Rated
input
power
: 400VA
This app
aratus
must be
earthed
Warning
2
1
3
4
Mic/Line
Mic/Line
CD
L
R
Aux
Line Ou
t 1V
Inc
Out
In
Tel/Em
er.
0
0 2
Chime
4 .5
1- -3
Call/Mix
24VDCIn
Call Only
Mix Only
100V
0 70V
0
100/70V
0 100/70
V0
8
0
115V/2
30V
Apparatu
s deliver
ed
connec
ted for
230V-
Rated
input
power : 4
00VA
This app
aratus
must be
earthed
Warning
2
1
3
4
Mic/Line
Mic/Line
CD
L
R
Aux
Line Out
1V
Inc
Out
In
Tel/Emer
.
0
0 2
Chime
4 .5
1- -3
Call/Mix
24VDC In
Call Only
Mix Only
100V 0
70V 0
100/70V 0
100/70
V 0
8
0
180 5-pole DIN
6.3 mm phono jack
180 3-pole XLR
GND
GND
2