Bosch Security Systems | 2004-06 | 9922 141 10371en
Plena Voice Alarm System | Installation and User Instructions | System units en | 22
3.2.3 Hand-held EMG microphone
The controller is equipped with a hand-held EMG
microphone, which can be used to make emergency
calls. To be able to make business calls, one or more call
stations (LBB1956/00) must be connected to the
controller (see section 3.4).
3.2.4 Internal booster
The controller is equipped with a 240 W internal
booster, which can be used in 1-channel or 2-channel
mode:
• In 1-channel mode, the internal booster amplifies calls
and BGM. In 1-channel mode, calls will interrupt the
BGM. Optionally, a spare external booster can be
connected (see also section 3.3.2). The external
booster will only be activated when the internal
booster fails.
• In 2-channel mode, an external booster (see also
section 3.3.2) must be connected to the controller.
The internal booster of the controller amplifies the
BGM and the external booster amplifies the calls. In
2-channel mode, calls do not interrupt the BGM.
If one or more routers (see also section 3.3) are
connected to the controller, to each router, two
additional external boosters can be connected. See also
section 3.3.2.
3.2.5 Internal message manager
The controller has an internal message manager, which
manages and distributes all prerecorded messages and
chimes. Up to 255 prerecorded messages can be stored
as wave files (.wav) in an EEPROM, and can be used
both in emergency and in business calls. Wave files can
be created and uploaded to the message manager, from
a PC running the Configuration Software.
3.2.6 Supervision
The controller integrates all required supervision
features, in accordance with the international standard
IEC60849 applicable for emergency systems. Various
functions of the controller are supervised. Supervision is
switched ON by default. Supervision can be switched
OFF by setting the supervision DIP switch in the OFF
position (see section 5.3). If supervision is enabled, any
failing function will cause the controller to enter the
fault state and the corresponding fault indicator is
turned ON (see also section 7.2).
figure 3.3: Zone output terminal blocks
figure 3.4: Hand-held EMG microphone
LBB1990/00
Voice Alarm Controller
Z1
Z2
Z3
Z4
Z5
Z6
Ext
Booster
In
DC In
10 0V
0
TR
Int
Booster
Out
10 0V
0
10 0V
0
10 0V
0
10
0V
0
10 0V
0
10 0V
0
24V
70V
10 0V
0
Call out
10 0V
0
10 0V
0
10 0V
0
10 0V
0
10 0V
0
10 0V
0
Z2
Z3
Z4
Z5
Z6
Z1
AB
10 0V
Note
Refer to the Configuration Software Manual
(9922 141 10381) for details about creating
prerecorded messages for the message
manager.