Bosch Plena - 3-Wire Volume Override; Connecting Audio Inputs; 4.10.1 Connecting BGM Sources

Bosch Security Systems | 2004-06 | 9922 141 10371en
Plena Voice Alarm System | Installation and User Instructions | Installation en | 38
4.9.2 3-wire volume override
To create a 3-wire volume override, see figure 4.10:
• Connect the NC contact of the Volume Override to the
0 pin of Ext Booster In.
• Connect the NO contact of the Volume Override to the
100V Call out pin.
4.10 Connecting audio inputs
The controller accepts two types of audio sources:
• BGM sources (see section 4.10.1).
• Mic/line input with VOX functionality (see section
4.10.2).
4.10.1 Connecting BGM sources
The controller provides two sets of double cinch sockets
for the connection of background music. The following
inputs can serve as audio sources:
Use a double cinch hifi-cable to connect an audio
source. For each set of double cinch sockets, the signals,
connected to the L (left) and R (right) sockets, are mixed
to form a single input signal.
figure 4.10: 3-wire volume override
LBB1990/00
Voice Alarm Controller
N
NC
TRG2
Override/Trigger Output
Z1
Z2
Z3
Z4
Z5
Z6
Ext
Booster
In
DC In
100V
0
TRG 1
Int
Booster
Out
24V
EMG
Fault
Call
Extern
Out
10
0V
0
100V
0
100V
0
100V
0
100V
0
100V
0
24V
70V
Z1
Z2
Z3
Z4
Z5
Z6
GND
NC
COM
NO
NC
COM
NO
NC
COM
NO
100V
0
Call out
100V
0
100V
0
100V
0
100V
0
100V
0
100V
0
Z2
Z3
Z4
Z5
Z6
Z1
AB
NO
24V
1 Channel
2 Channel
Int Booster
Ext Booster
BGM/Spare
N.C. / Spare
Call
BGM/Call
Volume Ov
100V
100V
Z+
0V
table 4.7: Audio sources
Audio source Description
CD/Tuner A CD or a tuner.
AUX Auxiliary sound equipment.
figure 4.11: BGM inputs
AUX
In
CD/Tuner
LBB1990/00
Voice Alarm Controller