Bosch Plena Power Amplifier - Rear Panel Connectors and Indicators

Bosch Security Systems | 2006-11 | 9922 141 50751en
Plena Power Amplifier | Installation and User Instructions | Amplifiers en | 10
3.2.2 Rear panel connectors and
indicators
See figure 3.2 for an overview of the controls,
connections and indicators:
1 Priority line - input 1 (XLR/balanced)
2 Level control - input 1
3 Line loopthrough 1 (XLR/balanced)
4 Program line - input 2 (XLR/balanced)
5 Level control - input 2
6 Line loopthrough 2 (XLR/balanced)
7 Priority controlled loudspeaker output
terminals
8 24 Vdc power supply terminals
9 Earth connection screw
10 Mains fuse (T10A)
11 Mains connector (3-pole)
12 ON - OFF switch
13 Voltage selector
14 Loudspeaker direct output terminals
15 Battery detection
16 Fault relay output
17 Pilot-Tone detection
18 100 V slave input terminals
19 Input 2 enable control terminals
20 Input 1 priority control terminals
figure 3.2: Rear panel LBB1930/20, LBB1935/20
Priority Only No Priority
100 V 0 1 00V 0
Priority Controlled Output
Off On
24V DCIn
Apparatus delivered
connectored for 230V~
Main Power
BatteryInput
Fault Relays' Output
NO COM NC
Off On
NO COM NC NO COM NC
Input1 Priority
Loopthrough 1
Input2 Program
Loopthrough 2
Input1 Priority
2.. .24V - I nput 1
0V- In put 2
Input2 Enable
2..24V-Enable
0V- Mu te
100V
0
Sl av e I nput 100V
+
+
-
-
100V
0
70V
0
8ohm
100V/70V
Se lec tio n (12A)
PriorityOnly
0
0
NoPriority
Priority
F701
F702
Battery
Power
Detection
Pilot-tone
Detector
230V~ 240V~
Design & Quality
The Netherlands
LBB 1938/10
NL-4827HG-10
Plena 480W Power Amplifier
Max. output power 720W
Rated output power 180W
230V~,50/60Hz
S/N.
8900 193 81001
A035413
Made in China
N663
Rated input
Power : 1600VA
Input 1
Priority
Slave Input
100V
Input 2
Enable
100V 0
100V 70V008
Direct O utput
InputInput
Input 2-ProgramInput 1-Priority
2..24V
Default Off
GND 2..24V
Default On
GND
2 3 4 5 6 9
14
10
11
12
1
7
8
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