User's Manual

Configuring the conference system via the central unit
36
Remedy 왘 Perform a manual self-test (see page 40).
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:
왘 Reset the error counter (“Break Counter”) (see page 40).
왘 Change to the “Bus Statistics” menu item (see page 39) and
check the digit behind “Break Counter”.
왘 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 correspon
ding plug connec-
tions or replace the corresponding c
onference units and system
cables.
If the error still occurs:
왘 Follow the steps described in the “System Load” menu item (see
page 38).
왘 Perform a manual self-test (see page 40).
Display
The warning triangle and the
structural change icon are
displayed.
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 all the conference units connected.
If a failure of conference units occurs, the above ment
ioned error
icons appear.
A failure of conference units can be caused by undervoltages or
o
v
ercurrents:
왘 Follow the steps described in the “System Load” menu item
(see page 38
).
왘 Perform a manual self-test (see page 40).
K
K
K
Direct Access 30 Units
K
20
N
N
K