Bosch DCN Next Generation Operation Manual page 239

Conference System
8.4 PRS-4DEX4 Digital Audio Expander
Main
When you start the digital 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:
–
Fault pop-up
When the digital 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
Downloading
Max. CH mismatch
No network
Table 8.14: 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 digital audio expander. If
there is more than one message, the display shows the most important message.
Messages
No Fault
Max. CH mismatch
No network
Table 8.15: Messages (low to high importance)
Bosch Security Systems B.V.
The name of the digital audio expander. The default name is Digital Expander. You can
change the name with the 4C Unit Name menu item (refer to PRS-4DEX4 Digital Audio
Expander, page 194).Eight VU meters that show the volume levels of the audio inputs and
audio outputs of the digital 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.
Description
The digital audio expander downloads software.
You have attached an audio input or audio output to a channel
that does not exist.
The digital audio expander cannot find the optical network.
Description
The digital audio expander operates correctly.
You have attached an audio input or audio output to a channel
that does not exist.
The digital audio expander cannot find the optical network.
Operation Manual
Operation | en 239
2013.11 | V2.0 | DCN-NG_OM_V4.x