Bosch Plena Voice Alarm System Service Manual download pdf (Page 23)

Bosch Security Systems | 2005-01 | 9922 141 10363en

Plena Voice Alarm System | Basic System Manual | Installation en | 23

To create a 3-wire volume override, see figure 3.11:

• Connect the 100V output of loudspeaker line A to

the 100 V input of the volume control.

• Connect the 100 V/0 V (CALL/RTN) of the

transformer to the 100V output of loudspeaker line

• Connect the 0 output of loudspeaker line A to the

0 V of the loudspeaker.

• Enable 3-wire volume override in the configuration

software.

3.12 Line output

The voice alarm controller has one line output (see

figure 3.12). This output has a double cinch socket. Both

cinch sockets contain the same, mono signal, which

consists of the current BGM and calls. The line output

can be used to connect the voice alarm controller to a

recording device (e.g. a tape-deck).

Note

It is not possible to use 3-wire volume override

in a basic system, because it must be enabled

using the configuration software. See the

Installation and User Instructions

(9922 141 1037x) and the Configuration

Software Manual (9922 141 1038x) for more

information.

Note

It is not possible to use 3-wire volume override

in combination with redundant loudspeaker lines

(line A and B, see figure 3.7). If redundant

loudspeaker lines are needed, use 4-wire

volume override (see figure 3.10).

Caution

Make sure that the correct connections have

been made and the system is correctly

configured.

figure 3.11: 3-wire volume override

10 0 V

figure 3.12: Line output

PLN-V6C240

Voice Alarm Controller

Booster

CD/Tuner

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