Configuring the conference system via the central unit
Displaying the temperature status – “Temperature”
•If necessary, further reduce the number of conference units until there are no errors reported.
Then add conference units one after the other and observe the central unit’s display. If an error is reported, the cause of the error might be the last added conference unit, the cable used or metal parts that bridge the contacts of the plug connection.
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Displaying system bus errors – “Bus Statistics”
If the temperature within the central unit is too high (display: “ ”), proceed as follows:
Make sure that the air vents are not covered or blocked (see page 15).
If necessary, clean the air vents (see page 104).
If the central unit is mounted into a rack:
Provide additional ventilation by providing for a clearance below the central unit and/or installing additional fans into the rack.
When the temperature is again within the permissible temperature range, this is automatically detected by the central unit (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 de faulty:
Have the fans checked and, if necessary, replaced by qualified maintenance personnel.
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Possible causes for system bus errors are:
•changes in the number of conference units
•faulty cables
•faults in cable shields
•faulty conference units
•strong electromagnetic fields
If there are system bus errors, the “ ” icon appears behind “Error Indication”. The display panel lights up red and the warning triangle N is displayed on the standard display (see page 34).
There are temporary or permanent transmission errors:
Temporary transmission errors can be caused by e.g. poorly shielded mobiles phones that are placed too close to the system cables or conference units. If the transmission error no longer exists, the “☺” icon appears on the display. The display panel lights up orange and the warning triangle N goes off.
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