90 en | Troubleshooting Plena Voice Alarm System
9922 141 1037x (V2.16) | V0.6 | 2011.09 Installation and Operation manual Bosch Security Systems B.V.
8.14 A click sounds through the loudspeakers at regular intervals
In a very silent environment like meeting rooms and offices, especially when they are
abandoned, a small click can be heard at the start and end of an impedance measurement.
This click is simply caused by the 20 kHz pilot tone being switched on and off. The level of the
click is small, but also depends on cable parameters, loudspeaker characteristics and load. If
the click, no matter how weak it is, is unacceptable then end of line supervision using the EOL
board should be considered instead of impedance supervision.
8.15 Password not working
A fault message, like indicated below, occurs when data used by the Configuration Software is
corrupted. It sometime happens after a software upgrade or when different versions of the
Configuration Software have been installed on your PC.
To fix it uninstall all versions of Configuration Software and (only) reinstall the version you will
use.
8.16 Configuration download fails
Figure 8.3 Downloading window
When the configuration download fails and the message in the window above changes to
STATUS: Downloading data failed there is a wave file in the configuration with misinterpreted
data. The file might be created with Audacity. Files created with R8brain do not suffer from
this.
8.17 Can’t retrieve the original wave files with the configuration
download
Please note that the names of wave files, messages, message templates, zones and zone
groups are not stored in the Controller and therefore cannot be retrieved. However all data is
still there in the right place leaving a correctly functioning configuration. The names taken are
default names followed by an incremental number. The default names are listed below:
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