Specifications

Bosch Security Systems | 2003-09 | 3922 988 99483en
Plena System Pre-amplifier | Installation and Operating Manual | en | 14
4.2 Connect a microphone
Figure 4.2
The input channel has 2 possible balanced inputs, use one of these inputs to connect a microphone or a line-level
source. If you use an input make sure that the 'mic/line' switch is in the correct position.
Note
If you want to use the priority feature, you must use a microphone or line-level source with a priority contact
on pin 4 and 5 of the 5-pole DIN plug.
External settings and connections
11
5
V- 2
30V
-
In
+24V
-
+
2
4V-
R
at
ed
i
n
p
u
t
P
o
wer
:
50VA
T1.
0A
L
250
V
Ap
pa
ratus de
li
vir
ed
conn
ect
ed f
or 230V-
Th
i
s
a
ppar
atus
m
us
t
beearth
ed
Warni
n
g
M
as
terOu
t
1
-
4
3
5
T
ri
g
ger
1
T
el
/EMG
0
Out
Ca
l
l In
Cal
l
A
ct
ive
Zo
n
e
6
Zone
5
Zone 1
CD
L
R
Tr
i
g
g
er2
PCA
u
di
oIn
1
.A
ud
i
o+
2.0V
3.
A
ud
io
-
4
.
24
Vd.c.
5.Al
l
ca
l
l
6.D
a
t
a
-
7
.
Data+
8.Chs
.
GND
LBB
1
9
2
5
/
0
0
89
001
9250 005
115/230V
~
,
50/60
H
z
N
o.
RS
2
3
2
/Line
/Line
Au
x
3
5
4
1
2
3
7
6
8
5
4
1
2
2
1
+
-
GND
3
1
2
+
-
GND
3
Zo
ne 2
Zo
ne
1
Zone 2
DC
Out
DC
In
100V
10
0V 0
0
1
00V
0
1
00V
0
1
00V
1
00V 0
0
1
00V
10
0V
0
0
MasterOut
1-
4
3
5
Tr igger 1
Te l/ EMG
0
Out
CD
L
R
Tr ig ger 2
PCAudioIn
1.Audio+
2.0V
3.Audio-
4.24Vd.c.
5.Allcall
6.Data-
7.Data+
8.Chs.GND
LBB19 25/00
89 0019 250005
115/230V~,50/60Hz
No.
RS232
/Line
/Line
3
5
4
1
2
3
7
6
8
5
4
1
2
1
-
GN
D
3
180 5-pole D IN 180 3-pole XLR
GND
GND
2
1
+
-
GND
3