Bosch LBB 1903/10 User Manual

Page of 24
Bosch Security Systems | 2003-09 | 3922 988 92883en
Plena Mixer Amplifier | Installation and Operating Manual | 
en | 12
3
Installation in rack
Figure 3.1
The mixer amplifier is delivered for tabletop use, but you can mount it in a 19" rack.
If you mount the amplifier in a rack, you must:
ensure that the unit does not exceed the overheating temperature (45 °C ambient).
use the mounting brackets which can be ordered by Bosch (LBC 1901/00).
remove the 4 feet from the bottom of the unit. Without the feet the unit is 2U high.
Installation in rack
115V/2
30V
Appara
tus deliv
ered
conne
cted
for 23
0V-
Rated
input
power
: 400VA
This app
aratus
must
Warning
Call/Mi
x
24VD
CIn
Call Only
Mix On
ly
70
V0
100/70V
0 100/70
V 0
8
0
12 VDC
12 VDC
-
+
-
+
F
LBB1903 (30W); F=F5A
LBB1906 (60W); F=F8A
LBB1912 (120W); F=F15A
LBB1914 (120W); F=F15A
115V/2
30V
Apparat
us deliv
ered
conn
ected fo
r 230V-
Rated
input
power :
400VA
This app
aratus
must be
earthed
Warning
2
1
3
4
Mic/Lin
e
Mic/Lin
e
CD
L
R
Aux
Line O
ut 1V
Inc
Out
In
Tel/Em
er.
0
0 2
Chime
4 .5
1- -3
Call/M
ix
24VDC
In
Call On
ly Mix
Only
100V
0 70V
0
100/70
V0 100/7
0V0
8
0
4
3
2
0 dB
-6 dB
-20 dB
Power
1
Select
CD
AUX
Master
Line
+
+
1
Plena
Mixer Am
plifier