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Plena Loop Amplifier | Installation and User Instructions | Operation
6
Operation
6. 1
Switch on
Push the Power switch to switch on the loop amplifier.
The Power switch is on the front of the loop amplifier
(refer to figure 6.1).
0 dB
-6 dB
-20 dB
Power
figure 6. 1 : Power switch
When the mains power supply is available, the green
power LED on the front of the loop amplifier (refer to
figure 6.2) comes on.
0 dB
-6 dB
-20 dB
Power
figure 6.2: Power LED
6.2
Switch off
Push the Power switch to switch off the loop amplifier.
The Power switch is on the front of the loop amplifier
(refer to figure 6.1). The green power LED on the front
of the loop amplifier (refer to figure 6.2) goes off.
Bosch Security Systems | 2005-05 | 9922 141 50672en
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6.3
Change volume
You can change the volume of the audio signal on the
connected induction loops with the input volume
controls. The input volume controls are on the front of
the loop amplifier (refer to figure 6.3).
Caution
Do not change the volume of the audio signal on
the connected induction loops with the Master
volume control. When you change the position
of the Master volume control, you change the
magnetic field of the connected induction loops.
0 dB
-6 dB
-20 dB
Power
0
figure 6.3: Input volume controls
Note
The volume of the audio signal on the priority
input is configured with a volume control on the
rear of the loop amplifier (refer to section 5.6).
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