ADN System Instruction Manual

Table Of Contents
Configuring the conference system via the central unit
104 | ADN Digital Conference System
Display
Only the structural change
icon is displayed.
Error Change in the number of conference units due to:
manual adding or removal of one or several conference units
automatic resetting of one or several conference units (restart
of the conference units)
switch-off of one or several conference units due to under-
voltage
disconnection e.g. caused by
faulty plug connections
wire or cable faults
Remedy Perform a manual self-test (see page 110).
The display can change as follows:
The structural change icon disappears: The structural
change has been detected, there are no errors.
The structural change icon is still displayed: Follow the
steps below.
If, after performing the self-test, the structural change icon is still
displayed:
Reset the error counter (“Break Counter”) (see page 110).
Change to the “Bus Statistics” menu item (see page 109) and
check the
digit behind
Break Counter”.
Carefully move the conference units and systems cables and
check if the
digit behin
d “Break Counter” is increased.
If the digit is increased, check the corresponding plug connec-
tions or replace the corresponding conference units and system
cables.
If the error still persists:
Follow the steps described in the “System Load” menu item (see
pa
ge 107).
Perform a manual self-test (see page 110).
Display
The warning triangle and the
structural change icon are
displayed. The display panel
lights up red.
Error and
remedy
Change in the number of conference units during the self-test:
After switch-on, an automatic self-test is performed which simu-
lates a running conference with the connected conference units.
If a failure of conference units occurs, the above mentioned error
icons appear.
A failure of conference units can be caused by undervoltages or
overcurrents:
Follow the steps described in the “System Load” menu item (see
pa
ge 107
).
Perform a manual self-test (see page 110).
Direct Access
30 D1/C1
20
K
K
K
K
K
20
Direct Access
30 D1/C1
N
K
N
K