12 en | External connections PLENA power amplifiers
2018.11 | V1.2 | LBB193x/x0 Installation and operation manual Bosch Security Systems B.V.
6 External connections
6.1 Connect the backup power supply
The power amplifier has a 24VDC input (8) screw terminal to connect a backup power supply.
You must connect an earth (9) to the unit to increase the electrical stability of the system.
1
00V 0
10
0V 0
Prio
rity C
ont
ro
lled O
u
tp
ut
24 V
D
C
In
Appara
tus delivere
d
c
onnectored
f
or 230V
~
M
ain P
ower
B
atter
yt
ela
y
s' O
utput
N
C
Of
f
O
n
NO
C
OM
NC
NO
C
O
M
NC
1
0
0V
0
7
0V
0
8
ohm
1
0
0
V/7
0V
S
el
ection
(12A
)
Prior
i
t
y
O
nl
y
0
0
N
o
P
r
ior
i
ty
P
riority
0
7F
1
F
2
0
7
Batter
y
Power
Detection
23
0V~
240
V~
Rated inpu
t
Power : 160 0VA
100 V
70V
0 0
8
Dire c
t O
utp ut
1
00V 0 10
0V
0
PriorityC
o
n
t
r
o
l
ledO utpu
t
O
O
n
2
4V D
C
In
Ap
p
a
ratusdelive
r
ed
c
onn
ecto
re
dfor 230V
~
MainP
ower
BatteryIn
put
FaultR
el
ays' Output
NO
CO
M
N
C
Off O
n
N
O
C
OM
NC
N
O
CO
M
NC
I
n
p
ut1Pr
iority
Lo
op
t
h
ro
ug
h1
In
put
2
Progr
am
L
oopthroug
h
2
Input
1
P
r
ior
ity
2...24V
-
I
nput1
0
V-Input
2
I
np
ut
2En
abl
e
2..24V-
Enable
0V-Mut
e
100V
0
S
lave
Input100V
+
+
-
-
1
00V
0
7
0V
0
8
o
hm
10
0
V/
70
V
Selection(12A
)
Prio
r
i
tyOnly
0
0
N
o
Pr
iority
Prio
r
ity
F7
0
1
F
702
B
a
ttery
P
ow
e
r
Detection
Pilot-tone
D
et
ector
230V~
240V~
Ratedinput
Power: 16
00VA
Inp
u
t1
P
r
io
r
ity
Sla
ve Inp
u
t
100V
In
pu
t2
En
a
b
le
1
00V 0
100
V 7
0
V0
0
8
D
ire
ctO
utput
I
nputInput
I
npu
t2 -Pro
gramInput 1-P rio
r
it
y
2..2 4V
D
e
fault Off
G
N
D
2
.
.
24
V
Defau ltO n
GN
D
12 VDC
12 VD
C
- +
-
+
Figure6.1: Backup power supply
6.2 Connecting line input and loop-through
The power amplifier has a balanced line input for connection to a pre‑amplifier or a mixer. Use
the loop‑through connection to connect the power amplifier to another power amplifier if
more power is needed. Each power amplifier must be connected to its own set of
loudspeakers. Do not connect power outputs to each other.
Use program line input 2 (4) and line loop‑through 2 (6) for normal operation without priority.
100V
0 1
0
0V 0
P
r
i
or
i
t
y
Con
t
rol
l
ed O
u
t
pu
t
Off
O
n
24
V
D
C
In
Appar
at
us d
e
l
iv
e
re
d
c
o
nne
c
t
or
ed
f
or
23
0V~
M
a
inP
o
w
er
Batt
e
ry
In
put
Faul
t
Relay
s
'
O
u
t
p
u
t
N
OC
O
M
N
C
Off
O
n
N
OC
O
M
NC
NO
C
OM N
C
In
p
ut1
Pr
iority
L
oo
pthro
u
g
h
1
In
p
u
t
2
P
r
ogram
L
oop
throu
g
h
2
Inpu
t
1
P
r
ior
i
ty
2
.
.
.
2
4
V-Inp
u
t
1
0
V
-
I
n
pu
t
2
Input
2
E
na
ble
2..
2
4V
-
Ena
b
le
0
V
-Mu
t
e
1
00V
0
S
la
ve
I
nput
1
00V
+
+
-
-
100
V
0
70
V
0
8
o
hm
1
0
0
V
/7
0V
Se
l
ect
ion(
1
2
A)
P
r
i
or
ity
O
nly
0
0
No
P
riority
P
rio
r
i
ty
F
7
0
1
F
7
0
2
Ba
tter
y
Powe
r
Dete
c
tion
Pilo
t-tone
De
tector
2
30
V~
2
4
0V
~
D
e
si
g
n
&
Q
u
al
i
t
y
T
he e
r
a
n
L
BB 19
3
8
/
1
N
L
-
4
8
2
7H
G
-
1
0
Pl
e wer
Amp
l
ifie
r
Ma
x
.
ou
t
putpowe
r
7
20W
Ra
te
d
u
t
p
t
ow r1
8
0
W
2
3
0
V
~
,
5
0/
A
035413
Mad
ein
N
6
R
a
te
dinp
u
t
Powe
r
:
16
00V
A
I
n
pu
t
1
P
r
i
o
ri
t
y
S
la
v
e
I
nput
1
00V
I
np
u
t 2
E
n
abl
e
1
0
0
V 0
100
V
7
0
V
0
0
8
Di
r
e
ct
O
u
t
pu
t
Inp u
t
I
np
ut
I
npu
t 2
-P ro
gr
amInp ut1 -Pr iori
t
y
2
.
.24 V
De
fa
ul
t O
f
f
G
N
D
2.
.
2
4V
D
e
f
a
ult
On
G
ND
100
V
0 1 0
0V 0
P
r
i
o
r
i
t
y
C
ontrol
l
e
d Ou
t
put
O
ff
On
24
V
D
C In
A
p
p
a
ra
t
us
de
l
i
v
e
r
ed
c
onn
e
c
tor
ed
f
or2 30
V
~
MainP
o
w
er
B
a
ttery
I
n
pu
t
F
a
u
l
t Re
l
ays'
Out
p
ut
N
O
C
O
MNC
Off
O
n
N
O
CO
M
N
C
NO
CO
M
N
C
In
p
ut
1
P
rior
i
t
y
Loo
pt
h
roug
h
1
Input
2
P
r
o
g
r
a
m
L
o
opthrough2
I
nput1
P
r
ior
i
t
y
2
.
.
.
2
4
V
-Inpu
t
1
0
V
-Input
2
Input
2Enab
l
e
2
.
.
2
4
V-
Ena
b
l
e
0V
-
M
u
t
e
10
0V
0
Sl
a
ve
Inp
u
t
1
0
0
V
+
+
-
-
1
0
0V
0
7
0
V
0
8o
h
m
1
0
0
V
/7
0
V
S
ele
c
ti
o
n
(
1
2
A
)
Priorit
y
O
nly
0
0
No
P
r
i
or
i
ty
P
ri
ority
F
70
1
F
7
0
2
B
a
t
t
er
y
P
o
w
e
r
Detection
P
i
lo
t
-to
n
e
De
tector
230V~
2
4
0
V
~
Desi
g
n
&
Qu
a
l
it
y
T
he
Net
h
e
r
l
a
n
d
s
L
BB 19
3
8
/10
N
L
-
4
827H
G
-
10
Pl
e
n
a4
8
0WPower
Am
p
l
i
f
ie
r
Ma
x
.outputp
owe
r7
2
0W
Rate
do
u
tputpo
w
e
r
1
8
0W
230V~,50/6
0
Hz
S/N.
8
9
0
0
1
93
8
1
0
0
1
A
03
5
413
M
a
d
e
i
n
C
hin
a
N
6
63
Rated
i
nput
P
ower
:
1
6
00V
A
I
np
u
t 1
P
r
i
or
ity
S
l
a
v
e
I
n
p
ut
1
00V
I
n
p
u
t
2
E na
ble
10
0
V 0
100 V
70
V0 0
8
Di
rect O
utpu
t
I
n
putI
n
p
ut
I
npu
t
2
-P
r
ogr
am
I
n
pu
t 1
-P r
i
o
ri
t
y
2..
2
4V
D
e
f
a
ult Off
G
ND
2
..2 4V
D
efa
u
l
t
O
n
G
N
D
115V-
230V-
I
n
+2
4V-
+
24V
-
R
a
t
edinput
Power :5 0VA
T1
.
0
AL
250V
A
ppa
ratus deli
ver
e
d
connected for23 0V-
T
h
i
s
a
pparatus m
u
s
t
be
e
ar
t
hed
W
ar
n
i
ng
Mast
erOu
t
1-
4
3
5
T
r
igger 1
Te
l
/E
M
G
0
Ou
t
Call In
C
a
l
l
A
ctiv
e
Zone 6
Zone 5
Zone 1
C
D
L
R
Tri
g
g
er 2
PC
A
ud
i
oIn
1.Audio+
2.0V
3.Aud
io
-
4.24V d.c.
5.A
l
lcal
l
6.Da
t
a-
7.Da
t
a+
8.Chs .
GND
RS
23
2
/Li
ne
/L
in
e
Aux
3
5
4
1
2
3
7
6
8
5
4
1
2
2
1
+
-
GND
3
1
2
+
-
GND
3
Zone 2
Zon
e 3
Zon
e
4
DC Out
DC In
100V
100V
0
0
100V
0
100V
0
100V
100V 0
0
100V
100V 0
0
4
6
Figure6.2: Line input and loop‑through
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