ADN System Instruction Manual

Table Of Contents
ADN Digital Conference System | 109
Configuring the conference system via the central unit
To prevent an increase in temperature:
Make sure that the air vents of the ADN CU1 central unit and the ADN PS power
su
pplies are not covered or blocked (see page 38 and page 40).
If necessary, clean the air vents (see page 225).
If the ADN
CU1 central unit and the ADN PS power supplies are mounted into a rack:
Provide additional ventilation by providing for
a
duct or vent space of 1 U below
and above the central unit and the power supplies and/or by installing addi-
tional fans into the rack.
When the temperature is again within the permissible temperature range, this is
automatically detected by the system (the icon appears behindSystem on the
display). The temperature check is carried out cyclically.
If, in spite of these measures, the temperature is still detected to be too high, one
of the fans might be faulty:
Have the fans checked and, if necessary, replaced by qualified maintenance
pe
rso
nnel.
Displaying system bus errors –
“Bus
Statistics”
Possible causes for system bus errors are:
c
hanges in the number of conference units
faulty cables
faults in cable shields
faulty conference units/faulty antenna module
strong electromagnetic fields
If there are system bus errors, the icon appears behind “Error Indication”. The
d
isplay panel lights up red and the warning triangle is displayed on the standard
display (see page 102).
There are temporary or permanent transmission errors:
Temporary transmission errors can be caused by e.g. poorly shielded mobiles
phones
that are pl
aced too close to the system cables, the conference units or the
antenna module. If the transmission error no longer exists, the icon appears on
the display. The display panel lights up orange and the warning triangle goes
off.
Permanent transmission errors must be el
iminat
ed immediately in order to ensure
trouble-free operation of your conference system. Follow the steps for error elimi-
nation described under the “System Load” menu item (see page 107). If necessary,
reduce the length of the system cables between the ADN CU1 central unit and the
ADN PS power supplies (shorter cables increase the operational reliability, the
maximum length allowed is 50 m). In addition, check if other electronic devices in
the vicinity of the conference system might cause the errors.
You can manually reset the icon behind “Error Indication” to the default icon ( )
(see page
111).
The error counter (“Break Counter”) incrementally counts al
l
errors and changes in
the conference system (e.g. added conference units or connected and switched on
ADN PS power supplies). Based on the changes of the counter’s counts, you can
conclude on the error source (e.g. if the counter rapidly increments when you
wiggle the cable, this indicates a faulty cable).
You can manually reset the error counter (“Break Counter”) (see page 110).
Select and call up the
“Diagnostics” submenu
Select and call up the
“Bus Statistics” menu
item
View the information;
exit the menu item
Diagnostics
System Load
Temperature
Bus Statistics
Bus Statistics
No No
Main Menu
System Menu
Diagnostics
Error Indication :
Break Counter : 1
N
N