Bosch DCN Next Generation Installation & User's Instructions page 141

DCN Next Generation | Installation and User Instructions | Contribution Devices
14.3.3 Channel/volume restore function
When the configuration switches are in the correct
position (refer to table 14.1), you can enable or disable
the channel/volume restore function of the discussion
unit.
• To enable the channel/volume restore function, push
the > volume button. (The LED around the
microphone buttons come on as green.) When the
discussion unit is enabled, it automatically selects the
last known channel and volume.
• To disable the channel/volume restore function,
push the < volume button. (The LED around the left
microphone button comes on as red.) When the
discussion unit is enabled, it automatically selects
channel 0 (floor) and sets the volume to -18 dB.
Note
When the discussion unit has two sets of
volume buttons, configure the channel/volume
restore function with the right set of volume
buttons. The channel/volume restore function
cannot be configured with the left set of volume
buttons.
For example, you can enable this function in discussions
in which all delegates and chairmen have a fixed seat
number.
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14.3.4 Headphones level reduction
When the configuration switches are in the correct
position (refer to table 14.1), you can enable or disable
the headphones level reduction of the discussion unit.
• To enable the headphones level reduction, push the
> volume button. (The LED around the left
microphone button comes on as green.) When the
microphone is enabled, the headphones level
reduction is 18 dB.
Note
When the discussion unit is in the dual delegate
mode (refer to section 14.4.4) and the
headphones level reduction is enabled:
• The signal that is sent to the left headphones
socket is decreased when the left
microphone button is pushed. The signal
that is sent to the right headphones socket is
not decreased.
• The signal that is sent to the right
headphones socket is decreased when the
right microphone button is pushed. The
signal that is sent to the left headphones
socket is not decreased.
• To disable the headphones level reduction, push the
< volume button. (The LED around the left
microphone button comes on as red.) When the
microphone is enabled, there is no headphones level
reduction.
Note
When the discussion unit has two sets of
volume buttons, configure the headphones level
reduction with the right set of volume buttons.
The headphones level reduction cannot be
configured with the left set of volume buttons.
For example, you can enable this function to avoid
acoustic feedback between the microphone and the
headphones of the discussion unit.
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