About The Mixer Amplifier - Bosch LBB 1903/10 Installation And Operating Manual

Plena Mixer Amplifier | Installation and Operating Manual |
1

About the mixer amplifier

Phantom
Power
/
LINE MIC
/
LINE MIC
Figure 1.1
The Plena Mixer Amplifier is a mono amplifier for mixing up to 4 microphone signals and (background) music
signals. You can adjust the volume of each input separately in order to obtain the correct mix and control the mixed
output via the master volume and tone controls. Microphone input 1 can have priority with an optional chime
signal, muting other sources. The power amplifier has a direct output for mixed signals and priority announcements,
but additionally a priority controlled output relay routes the output to loudspeaker zones that should receive only
priority announcements or no priority announcements at all.
Bosch Security Systems | 2003-09 | 3922 988 92883en
JP406
JP401
JP402
JP403
JP405
201
115V,230V
About the mixer amplifier
100V
IN S INS
Out In
Click
suppression
JP901
100V
100V
70V
70V
8 O hm
0
Only for LBB1914/10
en | 7
100V
0
70V
70V
70V
100V
0
JP802
8 O hm
8 O hm
0
0
Call Only
0
0
0
Mix O nly
0
+
24V
24V
-
Call Active
Call Only
0
0 0
0
Zone 1
Call/Mix
0 0
Z1 Front
JP902
100/70
8 O hm
Call/Mix
0 0
0
Zone 2
Call/Mix
0 0
Z2 Front
0
Mix O nly
0 0
+
24V
Call Active
24V
-