External Connections; Induction Loops; Audio Inputs - Bosch PLN-1LA10 Installation And User Instructions Manual

Plena Loop Amplifier | Installation and User Instructions | External Connections
4

External connections

4. 1

Induction loops

Connect the induction loops to the rear of the loop
amplifier (refer to figure 4.1). Always twist wires that run
parallel and close to each other to avoid additional and
undesired inductions.
figure 4. 1 : Induction loop, connection
table 4. 1 : Induction loop, details
Number of connections:
1x screw terminal
Location:
Rear side
Current:
max. 10 A, max. 6 A
RMS
Induction loop DC resistance:
0.5 to 3 Ω
Induction loop area:
2
max. 600m @ 100 mA
Bosch Security Systems | 2005-05 | 9922 141 50672en
Mast er
In
Slave Line Out
Out
Maste 0º
Metal r in Slave 90º
comp loss out
ensat ion Fault
Prior ity
input
Supe rvisio
1 1 n
NO
AGC C NC 115V
Limite r 5K 10K 230V
On
2 2 Off Appa ratus
Conn deliv ered
ected for 230V
100V Phanto
0 m
Vox Mix
Line fuse:
230V
On Phanto m 115V 3A
Off Mic 6A
Line Loop
Out
On Com
Off Mic
Line
L in e fu
s e : 2 3
0 V 3 A
1 1 5 V
6 A
L o o p
O u t
C o m
/m
RMS
4.2

Audio inputs

You can connect audio sources to the audio inputs of
the loop amplifier. For example, you can connect a
power amplifier and a microphone (refer to figure 4.2).
Mast er In
Slave Out
0º
Maste
Metal r in Slave out 90º
comp ensat loss
ion
Prior ity
input
1 1
AGC Limite
r 5K 10K
100V 0
Vox
Mix
1 1
Ph an to
m
Vo x
M ix
O n
O ff
+
100V 1 - GND 2 GND
0V 3 1
3 -
figure 4.2: Audio inputs, connection
table 4.2: Audio inputs, details
Number of connections:
2x XLR sockets
Location:
Rear side
Sensitivity:
Switchable, 1 mV/1 V
Impedance:
> 1 kΩ
Dynamic range:
100 dB
Signal-to-noise ratio:
63 dB @ max. volume
75 dB @ min. volume/mute
Headroom:
25 dB
Phantom power:
Switchable, 16 V
VOX functionality:
Switchable, input 1 mutes input 2
en | 21
PLN-1LA10
Loop Amplifier
Line Out
Fault
Supe rvisio
n
NO 115V
C NC
On 230V
Off
2 2 Appa ratus
Conn ected deliv ered
for 230V
Phanto
m
Line fuse:
Phanto 230V 3A
On Off m 115V 6A
Mic Line
Loop
Out Com
On Off
Mic
Line
2 2
Ph an to
m
O n Ph an to
m
O ff
M ic
O n
O ff
GN D
+
1
- 2
3
lin e o
u t
PLN-1P120
Power Amplifier
2 +
100V 230V - 240V
70V -
0 0 24V
8 DC IN
-
+
line out
Line
250V fuse
T1A
Warn ing
This appar Appa ratus
atus must conn deliv
be earth ecte d for 230V ered
ed -