Bosch Plena - Connecting Call Stations

Bosch Security Systems | 2004-06 | 9922 141 10371en
Plena Voice Alarm System | Installation and Operating | Configuration en | 50
5.3.4 2-channel operation
If the 2ch operation switch (see figure 5.1) is in the ON
position, the controller operates in the 2-channel mode.
If the 2ch operation switch is in the OFF position, the
controller operates in the 1-channel mode.
5.3.4.1 1-channel mode
In the 1-channel mode, all calls and BGM are amplified
by the internal booster of the controller. If desired, an
external booster can be connected for spare switching
(see section 3.9). In 1-channel mode, all calls will
interrupt the BGM. The external booster is not
supervised (see section 5.3.3.12).
5.3.4.2 2-channel mode
In the 2-channel mode, connecting an external booster
to the controller is mandatory (see section 3.9). The
external booster amplifies the calls. The internal booster
amplifies the BGM. If the external booster fails, the calls
are amplified by the internal booster. In 2-channel
mode, calls do not interrupt the BGM. The external
booster is supervised (see section 5.3.3.12).
5.4 Mic/line input with VOX
functionality configuration
If the mic/line input with VOX functionality of the
controller is connected, configuration is done using the
VOX input source selector and the VOX configuration
DIP switch.
The priority (1 - 14) and the zone(s) or zone group(s) to
be served by the mic/line input can be configured using
the Configuration Software.
5.4.1 VOX input source selector
The type of VOX input source is set using the mic/line
selector on the rear of the controller (see figure 5.3). If
the VOX input source is a microphone, put the selector
in the Mic position. If the VOX input source is a line-
level source, put the selector in the Line position.
5.4.2 VOX configuration DIP switch
The VOX input is configured using the VOX
configuration DIP switch on the rear of the controller
(see figure 5.4). By default, all switches are in the OFF
position.
The settings that can be made using the DIP switches
are explained in a table on the rear of the controller (see
figure 5.5).
table 5.4: 1-channel mode
Booster Function
Internal BGM/Call booster
External Not connected/Spare booster
table 5.5: 2-channel mode
Booster Function
Internal BGM/Spare booster
External Call booster
Note
Refer to the Configuration Software Manual
(9922 141 10381) to configure the mic/line
input with VOX functionality.
figure 5.3: VOX input source selector
figure 5.4: VOX configuration DIP switch
figure 5.5: VOX settings table
Phantom power
Vox
Speech filter
Off
On
Mic/Line
Phantom power
Vox
Speech filter
Off
On
Mic/Line
1 VOX activate by mic .
2 Speech filter
3 Phantom power Off
VOX activate by VOX Switch
Flat
Phantom power On
Off On