ADN System Instruction Manual

Table Of Contents
If a problem occurs .../Frequently asked questions
234 | ADN Digital Conference System
Conference system with wireless conference units
Problem Possible cause Possible solution
See page
Antenna module(s) are not
active. Wireless conference
units flash red continu-
ously. (A warning message
appears on the central
unit's display panel)
More than 4 antenna modules are
connected to an ADN-W CU1 central
unit.
Reduce the number of antenna
modules. Use a maximum of 4
antenna modules per CU1 central unit.
221
Wireless conference units
cannot be logged in and
switch off after approx.
5minutes.
More than 150 wireless conference
units are connected to a central unit.
Use a maximum of 150 wireless
conference units per ADN-W CU1.
221
Conference unit is active
but the microphone does
not function
The microphone is wrongly connected Make sure that the microphone is
correctly connected to the console of
the wireless conference unit.
46
Newly added conference
units do not function.
Conference units flash red
continuously.
More than 400 conference units are to
be connected.
Reduce the number of conference
units to a maximum of 400.
Microphone LED and, if
the microphone is power
supplied, the signal light
ring flash red rapidly,
the microphone does not
function
The microphone is wrongly connected Make sure that the microphone is
correctly connected to the console of
the wireless conference unit.
46
The microphone is defective Replace the defective microphone by
a new one.
Conference unit do es not
connect to the antenna
module
The transmission range is exceeded Reduce the distance between the
conference units and the antenna
module. Place the antenna module as
centrally as possible and above the
wireless conference units.
74
The antenna module checks the
frequency ranges.
Wait a few minutes until the
frequency ranges have been checked.
The access mode is set to “Closed”. Only
wireless conference units whose serial
numbers are listed in a participant list
can be used in the wireless conference.
Add the serial number of the wireless
conference unit to the participant list.
167
Set the access mode to “Open” so that
the conference units automatically
connect to the antenna module.
166
Bad radio link between
antenna module and
conference units
The transmission range is exceeded Reduce the distance between the
conference units and the antenna
module. Place the antenna module as
centrally as possible and above the
wireless conference units.
74
Increase the output power to “100%“. 163
The antennas are wrongly oriented or
connected
Only use the supplied antennas and
correct them correctly to the antenna
module. Orient the antennas so that
they are parallel to each other and are
directed at a 90° angle towards the
wireless conference units.
42
The radio link is subject to interference Use dynamic frequency management. 96 or 161
RF channels or output
power cannot be selected
or changed
The software is not in “Live” operating
mode
Activate “Live” operating mode in
order to manually set the RF channels
or the output power.
162
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