Bosch Security Systems | 2005-04 | 9922 141 10364en
Plena Voice Alarm System
| Basic System Manual | System Overview
en
| 15
40
BGM inputs
- Two inputs to connect background
music sources. Each input consists of two cinch
sockets (see section 3.7).
41
Line output
- A line output to connect an external
recording device to record the audio of the Plena
Voice Alarm System (see section 3.12).
42
External power amplifier (output)
- An XLR
socket to connect an external power amplifier (see
section 3.9). This socket is used in combination with
the external power amplifier input (no. 47).
43
Trigger outputs
- Two general purpose trigger
outputs. Not for use in basic systems.
44
Internal power amplifier output
- Three pins
that provide the 100 V audio signal of the internal
power amplifier of the voice alarm controller.
45
Call output
- An output that provides the call audio
of the Plena Voice Alarm System.
46
Back-up power inlet
- An inlet to connect a back-
up power supply to the voice alarm controller (see
section 3.15).
47
External power amplifier (input)
- An input to
connect an external power amplifier (see section 3.9).
These pins are used in combination with the external
power amplifier output (no. 42).
2.4 Call
station
2.4.1
Introduction
The LBB1956/00 Call Station can be connected to the
LBB1990/00 Voice Alarm Controller to make business
calls. The call station is connected to the voice alarm
controller using standard Cat-5 Ethernet cable.
The call station is not supervised. For compliance to
evacuation standards, the Plena Voice Alarm System
disables the call station during emergency calls.
figure 2.4: Call Station
Summary of Contents for Plena LBB1990/00
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