Bosch DCN Next Generation Operation Manual page 22

22 en | System Overview
3.2 LBB4402/00 Audio Expander
Use the LBB4402/00 Audio Expander if the system needs more than two analog audio inputs
or audio outputs.
Typically, the audio expander is used to:
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Figure 3.9: Front and rear views
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The following sections give more information about the mentioned subject:
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2013.11 | V2.0 | DCN-NG_OM_V4.x
Connect external recording devices to the system.
Send audio signals to external devices.
Connect systems.
4
Network
1 2
48V 48V
8 9
Display - Shows the configuration menu.
Knob - Operates the configuration menu.
Headphones socket - Headphone connection.
Control inputs - Connects the audio expander to external devices. Through the control
inputs, external devices can control the audio inputs and the audio outputs of the audio
expander.
Audio inputs - Connects the audio expander to external analog audio sources.
Audio outputs - Connects the audio expander to external analog audio devices.
Ground screw - Connects the audio expander to ground.
Optical network sockets - Connects the audio expander to the optical network.
Control outputs - Sends the condition of the audio expander to external devices.
Connection: LBB4402/00 Audio Expander, page 117.
Configuration: LBB4402/00 Audio Expander, page 191.
Operation: LBB4402/00 Audio Expander, page 237.
Troubleshooting: LBB 4402/00 Audio Expander, page 266.
Technical Data: LBB4402/00 Audio Expander, page 277.
1
5
Caution
Audio In 3 Audio Out 3
Risk of electric shock.
Do not open.
Avis
Risk of electric shock.
Do not open.
Control In
1 2 3 4 5 6 7 8
Audio In 1 Audio Out 1
Control Out
C NC NO C NC NO C NC NO C NC NO C NC NO
1 2 3 4 5
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Operation Manual
2 3
6 5 6
Audio In 4 Audio Out 4
Audio In 2 Audio Out 2
6 5 6
Bosch Security Systems B.V.
Conference System
7