Bosch Security Systems | 2006-11 | 9922 141 50751en
Plena Power Amplifier | Installation and User Instructions | Amplifiers en | 16
3.5.5 Constant voltage loudspeakers
The power amplifier can drive 100 V constant voltage
loudspeakers at full power (100 V) or half power (70 V).
Connect the loudspeakers in parallel and check the
loudspeaker polarity for in-phase connection. The
summed loudspeaker power should not exceed the
rated amplifier power.
3.5.6 Low impedance loudspeakers
Connect low impedance loudspeakers to the 8 Ohm/0
terminals. This output can deliver the rated output
power into an 8 Ohm load. Connect multiple
loudspeakers in a series/parallel-arrangement to make
the combined impedance 8 Ohm or higher. Check the
loudspeaker polarity for in-phase connection.
3.5.7 Power
Use the mains lead to connect the amplifier to the
power supply.
figure 3.10: Priority input and control terminals
100V 0 1 0
0V 0
Priority Cont
rolled Output
Off
O
n
24V D
C
I
n
Appa
ra
t
usdelivered
co
nnect
oredfor 230V~
MainPower
B
at
tery
Input
Fault Relays' Output
N
O
COMN
C
Off
O
n
N
OCO
M
N
C
N
O
C
O
M
N
C
In
p
u
t
1P
rio
rit
y
Lo
o
pth
ro
u
g
h
1
Inp
u
t
2
P
ro
g
ra
m
Lo
o
pth
ro
u
g
h
2
Inp
u
t1
P
rio
r
ity
2...24
V
-
Inp
u
t1
0V
-
Inp
u
t
2
Inpu
t
2E
n
a
ble
2..24
V
-
E
n
a
ble
0V
-M
u
te
100
V
0
S
l
a
ve
Inp
u
t
10
0
V
+
+
-
-
100V
0
70V
0
8ohm
100V/
7
0V
Se
l
ec
tio
n
(
12
A
)
Pr
io
r
i
t
yOn
ly
0
0
N
o
Pr
io
r
i
t
y
Pr
io
r
i
t
y
F
7
0
1
F
7
0
2
Battery
Power
Detection
Pilot-tone
Detector
230V~
240V
~
D
es
ign&Q
u
a
lit
y
T
h
eN
e
t
h
e
rla
n
ds
L
B
B
1
9
3
8
/
1
0
N
L
-4
8
2
7
H
G
-1
0
Pl
e
na
4
8
0WP
owerAmpli
fi
e
r
Max
.
o
u
tp
u
t
p
ower7
2
0
W
R
a
tedoutp
utp
ower
1
80W
23
0
V~,50/6
0Hz
S/N.
8900
193
8
1
00
1
A
03
54
1
3
M
ad
e
in
Ch
i
n
a
N6
63
Ra
t
e
dinput
Power:1
600VA
Inpu
t1
Pr
ior
ity
Slav
eI
nput
100V
Input 2
En ab
le
10
0
V0
100V
70V
0
0
8
Dire ct O
utput
InputInput
Inpu
t2-Pro gr amIn put1 - Pr
iority
2
.
.24V
De
fau
lt
O
ff
GND2.
.24V
De
fau
lt
O
n
GND
Priority Only No Priority
100 V 0 1 00 V 0
Priority Controlled Output
24V DCIn
100V 70V008
Direct Output
Priority Only
No Priority
70 V100 V
8 Ohm
8 Ohm
8 Ohm
8 Ohm
8 Ohm
8 Ohm
4 Ohm
4 Ohm
LBB1938
figure 3.11: Mains lead
1
00V 0 1
0
0V0
Priority C
ontrolled Output
24V DC
In
Apparatus delivered
connectored for23
0V~
Main P
ower
Battery
t
elays' Output
NC
Off O
n
NO
C
OM
NC
NO
C
O
M
NC
100V
0
70V
0
8ohm
100V/70V
Selection (12A)
Priority
Onl
y
0
0
No
Pri
ori
ty
Pri
ori
ty
F7
01
F7
02
Batter
y
Power
Detection
23
0V~
240V~
Rated input
Power : 1600VA
100V
70V
0 0
8
Direc
tO
utput
100V 0 1 0
0V 0
PriorityC
on
tro
l
ledOutput
Off
O
n
24
VDC
In
App
ar
atus
delive
r
ed
conn
ec
tore
dfor23
0V~
MainP
ower
B
atter
y
I
n
p
ut
FaultR
elays'Out
put
NO
C
OMNC
Off
O
n
NO
C
O
M
NC
NOC
O
M
NC
Input1Priority
Lo
o
pthr
ou
gh1
Inp
ut2P
ro
g
ra
m
Lo
o
pthr
ou
gh
2
Inp
ut
1
Prior
i
ty
2..
.24V
-
Inp
ut
1
0
V-
Inp
ut2
I
np
ut
2
Enable
2
..
24V
-
Enable
0
V-Mute
100V
0
S
l
a
ve
Inp
ut
1
00V
+
+
-
-
1
0
0
V
0
70
V
0
8
o
hm
1
0
0
V/
7
0
V
Se
l
e
ct
i
o
n
(
1
2
A)
Pr
io
r
i
t
yOn
ly
0
0
N
o
Pr
i
o
r
it
y
Pr
i
o
r
it
y
F
7
0
1
F
7
0
2
Batte
ry
Power
Detectio
n
Pilot
-ton
e
Detector
230V~
24
0V~
Desi
g
n
&
Qua
l
it
y
T
heNet
herl
a
nd
s
LBB
1
9
3
8
/
10
N
L
-
482
7
H
G
-
1
0
P
l
e
n
a
4
8
0W
P
owerA
m
pl
i
f
i
e
r
Ma
x
.
o
u
tp
u
tp
o
we
r7
2
0W
Ra
te
dout
p
u
t
pow
e
r180W
23
0V~,5
0/
6
0Hz
S/
N.
89
0
0
1
9
38
1
00
1
A
03
54
1
3
M
a
de
i
n
C
h
i
n
a
N6
63
R
ate
dinpu
t
Pow
e
r: 1
6
0
0
V
A
Inpu
t1
Pr
ior
ity
S
la
ve I
nput
100V
Inpu
t2
Enab
le
10
0V
0
100V 70V0
0
8
Dire c
tO
utput
InputInput
Inpu
t2-P
rogr
am
Input1
-Pr
ior
ity
2..24
V
Defa
ultO f
f
GND
2..2 4
V
Defa
ul
tO n
GND
Linefuse
T10L250V
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