Connection And Indicators; Front Panel Indicators; Rear Panel Connectors And Switches - Bosch Plena LBB1930/20 Installation And Operation Manual

Plena Power Amplifiers
5

Connection and indicators

5.1

Front panel indicators

0 dB
-6 dB
-20 dB
Figure 5.1: LBB 1930/20 LBB 1935/20 and LBB 1938/20
1.
2.
3.
4.
5.
6.
5.2

Rear panel connectors and switches

Figure 5.2: LBB 1930/20 LBB 1935/20
Bosch Security Systems B.V.
1
VU meter LED's for -20, -6, 0dB and power ON.
Pilot‑Tone supervised function that monitors a 20 kHz pilot tone.
Battery supervised function to indicate battery operation.
Mains supervised function to indicate mains supply.
Overheat supervised function to give warning of overheating.
Air inlet cooling is made by forced ventilation from front to back. Amplifiers can be
stacked on top of each other. A supply of cool air from the front is necessary.
Input 1 Priority
Loopthrough 1
Input 2 Program
Loopthrough 2
Input 1 Priority +
2...24V- Input 1 -
0V- Input 2
Input 2 Enable +
2..24V- Enable -
0V- Mute
S lave Input 100V 100V
0
Installation and Operation manual
20 19 18 17
Input 1 Input 2 Slave Input Fault Relays' Output
Priority Enable 100V
Input
Pilot-tone
Detector
O On
NO COM NC
100V 0
2..24V GND 2..24V GND
Default O Default On
Input 1-Priority Input 2-Program
Input Input
1 2 3 4 5
Connection and indicators | en
2 3 4
Status
Pilot-Tone B t a e t y r
16 15 14 13
Apparatus delivered
connectored for 230V~
Main Power
Battery
230V~ 240V~
Battery
Detection
O On
NO COM NC NO COM NC
100V
0
Direct O utput 70V
0
8ohm
100V 0 70V 0 8
100V/70V
S election (12A)
Priority Only
0
No Priority
0
Priority
Priority Controlled Output
24V DC In
100V 0 1 00V 0
Priority Only No Priority
6 7 8
2014.01 | V1.1 | LBB193x/x0
9
5 6
Mains O e v h r e t a
12
Power
Rated input
Power : 1600VA
11
10
9