ADN System Instruction Manual

Table Of Contents
ADN Digital Conference System | 231
If a problem occurs .../Frequently asked questions
If a problem occurs .../Frequently asked questions
Conference system
Problem Possible cause Possible solution
See page
ADN CU1 central unit and/or
ADN PS power supply
cannot be switched on
No connection to the mains power
supply
Connect the ADN CU1 central unit and/
or the ADN PS power supply to the
mains power supply.
39
ADN PS power supply
cannot be switched on
No connection to the central unit Correctly connect the ADN PS power
supply to the ADN CU1 central unit and
switch the central unit on.
58
ADN PS power supply can be
switched on but cannot be
detected by the conference
system
Too many ADN PS power supplies used
in the conference system (the central
unit’s display panel displays the
waring triangle N)
You can use a max. of 15 ADN PS
power supplies in a conference system.
Reduce the number of ADN PS power
supplies.
Conference unit cannot be
used/activated
The conference unit is not connected
correctly
Check if all plugs are connected
correctly.
56
The cable string/cable ring is too long Reduce the length of the cable string/
cable ring or reduce the number of
conference units.
29
The maximum number of requests to
speak has been reached
Increase the maximum number of
requests to speak.
91 and
196
The ADN C1 chairperson unit has not
been initialized before use
If chairperson units are connected
afterwards, you have to initialize
them.
94 and
191
Too many ADN C1 chairperson units
used in the conference system
You can use a max. of 10 chairperson
units in a conference system. Since
each chairperson unit reduces the max.
possible number of speakers
(“Microphone Limit”), reduce the
number of ADN
C1 chairperson units.
91 and
196
Too many conference units used in the
conference system
You can use a max. of 400 conference
units in a conference system. Reduce
the number of conference units.
You are using a wireless conference
unit and the battery pack is flat
Recharge the ADN-W BA battery pack
or replace the flat battery pack by a
charged one.
51
You are using a wireless conference
unit – see page 234 for possible
problems and solutions
The central unit’s display
panel displays error icons/
the display panel lights up
red
Changes or errors have occurred Check the possible causes indicated by
the icons.
102
Volume of the conference
units’ loudspeakers is too
high or too low
The processing of the conference units’
audio signals (“Audio Gain
Reduction”) is adjusted s
o that the
gain of each additional channel is
reduced too much or too little
Adjust the processing of the
conference units’ audio signals.
98 and
201
The floor channel volume is not
adjusted correctly
Adjust the floor channel volume. 120, 200
and 214