Bosch DCN Next Generation, Руководство по эксплуатации

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LBB4402/00 Audio Expander
Audio inputs
You can connect external analog audio sources to the audio inputs of the audio expander. The
audio expander has four audio inputs.
Each audio input has:
–
1 XLR socket for balanced signals. The electric circuits behind the XLR sockets contain
transformers.
– 1 double cinch socket for unbalanced signals.
Notice!
The audio inputs change stereo signals in mono signals.
Audio In
2
3 4
1
5
Figure 6.9: Audio input, connection
Pin Type Signal Description
1 XLR Xternal Shield/ground
2 Live Positive
3 Return Negative
4 Cinch Live Signal in
5 Return Shield/ground
Table 6.5: Audio input, connection
You can connect line level sources to all audio inputs of the audio expander.
You can connect microphone sources only to the XLR socket of audio input 1 and audio input
2 of the audio expander.
Use the configuration menu to configure the audio inputs of he audio expander (refer to
LBB4402/00 Audio Expander, page 191).
Notice!
When the interlock mode is None (refer to DCN-IDESK Interpreter Desks, page 221), the audio
inputs of the digital audio expander are disabled for translation channels only. Audio input
channels can route to floor channels.
Audio outputs
You can connect audio recording devices or public address systems to the audio outputs of
the audio expander. The audio expander has four audio outputs.
Each audio output has:
–
1 XLR plug for balanced signals. The electric circuits behind the XLR plugs contain
transformers.
6.3
Conference System Connection | en 117
Bosch Security Systems B.V. Operation Manual 2013.11 | V2.0 | DCN-NG_OM_V4.x