
4000 Digital Series II Issue 1.4 Panel User Guide
STA0380 Page 23
The Reply Key can only respond to the call mnemonic displayed. All other incoming calls are placed in
a queue and have to be accessed in turn. The latest call is placed at the front of the queue. The maximum
number of calls in this queue is ten.
If the DAK is used to respond to a call, then the Reply Key displays the next call in the queue.
3.5.18 Loudspeaker Cut Pushbutton
Press the pushbutton to disable the internal loudspeaker. The red LED is illuminated. Another press will
enable the loudspeaker again.
3.5.19 Crosspoint Level Control
The Rotary Level Control is used to adjust the crosspoint level at the panel for any incoming audio
associated with a depressed DAK and can be adjusted over a range of values from 0.0 to 10.0 in 0.5
steps. The values correspond to a gain range of -70dB to +12dB, where the default value of 5.0
corresponds to approximately 0dB. Turn the Rotary Encoder clockwise to increase the Crosspoint
volume, anti-clockwise to decrease the volume, when in each selected level control mode.
1. Press the Rotary Level Control.
2. Display labels start to flash indicating current crosspoint level setting.
3. Press and hold the required key and adjust the rotary level between 0 -10.
4. Press the Rotary Level Control to exit crosspoint mode.
The rotary control is a digital encoder which rotates continuously without limit. The range over which it
controls the signal is set in software.
NOTE: If no action is taken within 20 seconds of pressing the pushbutton then the system will revert to
normal operation.
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