LBB4402/00 Audio Expander
Main
When you start the audio expander, the display first shows Starting. The display then shows
the Main menu item.
Notice!
If you do not turn or push the knob for three minutes, the display automatically goes back to
the Main menu item. The display does not automatically go back to the Main menu item from
the 2 Monitoring menu item and its sub-menus.
The Main menu item contains:
–
The name of the audio expander. The default name is Analog Expander. You can change
the name with the 4E Unit Name menu item (refer to LBB4402/00 Audio Expander, page
191). Eight VU meters that show the volume levels of the audio inputs and audio outputs
of the audio expander (refer to 19 inch units, page 179). When an control input is
disabled, an X character replaces the VU meter of the corresponding audio input or audio
output on the display.
Fault pop-up
When the audio expander detects a fault, the display shows a message. If there is more than
one message, the display shows the most important message.
Messages
Description
Downloading
The audio expander downloads software.
Max. CH mismatch
You have attached an audio input or audio output to a channel
that does not exist.
No network
The audio expander cannot find the optical network.
Table 8.11: Messages (low to high importance)
When a fault condition is resolved, the fault message will disappear. The messages Max. CH
mismatch, and No network go out of view when you push the knob.
Fault status
Use the 1 Fault Status menu item to see condition messages of the audio expander. If there is
more than one message, the display shows the most important message.
Messages
Description
No Fault
The audio expander operates correctly.
Max. CH mismatch
You have attached an audio input or audio output to a channel
that does not exist.
No network
The audio expander cannot find the optical network.
Table 8.12: Messages (low to high importance)
8.3
Conference System
Operation | en 237
Bosch Security Systems B.V.
Operation Manual
2013.11 | V2.0 | DCN-NG_OM_V4.x
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