Bosch Plena - Supervision Features and Disabled Indicator

2-Channel mode operation
If the 2ch operation switch (see System settings, page 75) is in the ON position, the system
operates in the 2‑channel mode.
Voice alarm controller
In the 2‑channel mode, the BGM is amplified by the internal power amplifier of the voice alarm
controller. The calls are amplified by the external power amplifier, which is connected to the
voice alarm controller (see section External power amplifier, page 52). If the external power
amplifier is faulty, the calls are amplified by the internal power amplifier. In 2‑channel mode,
calls do not interrupt the BGM.
Amplifier Function
Internal BGM/Spare power amplifier.
External Call power amplifier.
Table 6.4: 2-channel mode, controller
Voice alarm router
One or two external power amplifiers can be connected to a voice alarm router to increase the
power of the system (see section External power amplifiers, page 67). In 2‑channel mode:
– External power amplifier 1 of the voice alarm router is used to increase the power of the
internal power amplifier of the voice alarm controller.
– External power amplifier 2 of the voice alarm router is used to help the external power
amplifier of the voice alarm controller to amplify calls.
Amplifier
Function
1 BGM/Spare power amplifier.
2 Call power amplifier.
Table 6.5: 2-channel mode, router
Supervision
If the Supervision switch (see System settings, page 75) is in the ON position, supervision is
enabled. If it is in the OFF position, supervision is disabled.
Notice!
Supervision is only necessary for systems that have to comply to the IEC60849 evacuation
standard. If the system does not have to comply to this standard, leave the switch in the OFF
position.
If the Supervision switch is in the OFF position, the Disabled indicator on the front panel of
the voice alarm controller is lit to indicate that supervision is switched off.
Processor reset
Network
Call/EMG
Music/Spare
Ground short
Input
Mains
Battery
Zone1
Zone2
Zone3
Zone4
Zone5
Zone6
Fault Indicators
A
B
Disabled
Message
EMG mic
RCP
Router
0 dB
-6dB
-20dB
Figure 6.2: Disabled indicator
If the Supervision switch is in the ON position, an indicator is lit when a supervised function
fails (see section Fault State, page 96). Use the configuration software to switch supervised
functions on and off.
6.1.5
6.2
78 en | Configuration Plena
2013.07 | V2.0 | Installation and Operation manual Bosch Security Systems B.V.