Cleaning and maintaining the conference system
Direct Access | 30 Units |
20
H
Setting the volume of the conference units’ built-in loudspeakers
You can set the volume of the conference units’
CAUTION
Danger of hearing damage due to loud hissing!
When the floor channel volume is set to a high level or when several participants speak simultaneously, feedback (loud hissing noise) can occur. This can cause hearing damage.
Reduce the floor channel volume (see below).
Activate the “Feedback Suppression” function to be able to increase the volume before feedback can occur (see page 17).
Make sure that the “Audio Gain Reduction” function is activated (see page 17). This function reduces the gain per active micro- phone by the selected level and thus prevents feedback noise.
Increase the distance between the individual conference units to at least 50 cm.
Turn the jog dial
–to the right to increase the volume or
–to the left to reduce the volume.
Use the “Feedback Suppression” function to be able to increase the floor channel volume by up to 5 dB without feedback occurring (see page 17).
Cleaning and maintaining the conference system
CAUTION
Liquids can damage the product!
Liquids entering the product can cause a
Solvents or cleansing agents can damage the surfaces of the product.
Keep all liquids away from the product.
Do not use any solvents or cleansing agents.
Switch the conference system off (see page 14).
Before cleaning, disconnect the ADN CU1 central unit and the ADN PS power supplies from the mains power supply.
Only use a dry and soft cloth to clean the product.
ADN CU1 21