Bosch DCN Next Generation Installation & User's Instructions page 107

DCN Next Generation | Installation and User Instructions | Central Devices
11.5.9 Input mode
Use the Input mode sub-menu to set the input mode of
audio input 1 and audio input 2 of the audio expander.
Both inputs accept line level signals and microphone
signals. When you connect a microphone signal to an
audio input, you can also enable or disable the phantom
power supply of the audio input (refer to table 11.17).
table 11. 1 8: Input mode sub-menu (* = default)
Menu item
4A Input 1
4A Input 2
11.5.10 Automatic gain control (AGC)
Use the AGC menu item to enable or disable the AGC
of the audio inputs. If necessary, enable the AGC for the
audio inputs that inject external interpretations in the
system. The AGC makes sure that the nominal level of
the received interpretations is 9 dBV (XLR), -6 dBV
(cinch). When the nominal input of an external
interpretation is high, the audio of the external
interpretations will be too loud compared to the audio
of the 'internal' interpretations from the interpreter
desks.
Note
When channel 00 is attached to an audio input,
the system automatically disables AGC for the
audio input. You cannot manually enable AGC
for an audio input to which channel 00 is
attached.
Note
If two systems are connected by audio
connections (Cobranet, AEX, or DEX), set the
AGC to off.
Bosch Security Systems | 2007-02 | 9922 141 70525
Parameter
Input mode
Phantom
Input mode
Phantom
Value
Line*, Mic
On, Off*
Line*, Mic
On, Off*
en | 107
Description
The input mode of audio
input 1.
The input mode of audio
input 2.