
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
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RS23
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3
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2
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3
180 5-pole DIN 180 3-pole XLR
GND
GND
2
1
+
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G
N
D
3
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