Fault Indicators - Bosch Plena LBB1990/00 System Manual

Plena Voice Alarm System | Basic System Manual | Operation
5.7.4

Fault indicators

The voice alarm controller has two types of fault
indicators: system fault indicators (see figure 5.22) and
loudspeaker line fault indicators (see figure 5.23). They
provide information about failing system functions that
are supervised (see table 5.2). If a system fault is
persistent, contact your dealer.
Fault Indicators
0 dB
Processor reset
Network
-6dB
Call/EMG
-20dB
Music/Spare
Ground short
Input
figure 5.22: System fault indicators
The loudspeaker line indicators provide information
about failing loudspeaker lines. They indicate short-
circuit (see section 4.5.5.2) and impedance supervision
(see section 4.5.5.3) faults. If a loudspeaker line indicator
lights, check the wiring of the indicated loudspeaker line
and try to solve the fault. If it not possible to determine
the fault, contact your dealer.
Fault Indicators
0 dB
Processor reset
Network
-6dB
Call/EMG
-20dB
Music/Spare
Ground short
Input
figure 5.23: Loudspeaker line indicators
If supervision is disabled (see section 4.5), the fault
indicators do not function and the Disabled indicator is
lit (see figure 5.24).
Fault Indicators
0 dB
Processor reset
Network
-6dB
Call/EMG
-20dB
Music/Spare
Ground short
Input
figure 5.24: Disabled indicator
The availability of the indicators can be tested with the
Indicator test button (see figure 2.3, no. 11).
Bosch Security Systems | 2005-04 | 9922 141 10364en
Disabled
A B
Mains Zone1
Battery
Zone2
Message
Zone3
EMG mic Zone4
RCP Zone5
Router Zone6
Disabled
A
B
Mains Zone1
Battery
Zone2
Message
Zone3
EMG mic Zone4
RCP Zone5
Router Zone6
Disabled
A B
Mains Zone1
Battery
Zone2
Message
Zone3
EMG mic Zone4
RCP Zone5
Router Zone6
en | 40