Controls And Indicators (Front) - Bosch LBB 1968 Installation And Operating Manual

Plena Feedback Suppressor | Installation and Operating Manual |
1.2

Controls and indicators (front)

Plena Feedback Suppressor
Power
1
figure 1.2: Controls and indicators (front)
1 Power button
2 Input signal overload indicator
The LED lights up to indicate a too high input signal. The input sensitivity can be adjusted with the help of the
signal level switch on the rear (see §1.3).
3 Output signal present indicator
The LED lights up to indicate that the output signal exceeds -40 dBr.
4 Auto Mix indicator
The LED lights up to indicate that the Auto Mix function (see §1.1) is active.
5 Bypass indicator
The LED lights up to indicate that the feedback suppression function is deactivated.
6 Feedback suppression active indicator
The LED lights up to indicate that feedback suppression algorithm is active.
7 Bypass switch
8 Calibrate indicator
The LED lights up to indicate a fast calibration cycle after pressing the calibrate button (9).
9 Calibrate button
Upon pressing the calibrate button, random noise at -6 dBr is generated for a few seconds to allow the feedback
suppression algorithm to calibrate quickly.
Bosch Security Systems | 2003-11 | 9922 141 81681en
About the equipment
Signal
Overload
Present Voice tracking
2 3 4
Processor
Bypass
Active Calibrate
5 6 7 8 9
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