Lbb4433/00 Call Station Kit; Introduction - Bosch Praesideo 3.5 Installation And User Instructions Manual

Digital public address and emergency sound system
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2011-02 | Installation and User Instructions | 5 | Call Stations
18
LBB4433/00 Call Station
Kit
18. 1

Introduction

The LBB4433/00 Call Station Kit contains a printed
circuit board (PCB) that can be used to make
custom-made call stations (e.g. an emergency call
station). This call station contains a built-in limiter and
speech filter for improved intelligibility. See figure 18.1
for a block diagram of the call station kit.
Microphone
Control Inputs
POF
POF
figure 18. 1 : Block diagram
Bosch Security Systems | 2011-02
Headset
A/D
PTT
I
Keypad
D/A
Network
Processor
+
DSP
O
Network
Redundancy
Switching
en | 216
Keypad
(max. 16)
Power/Fault (2)
Call Status
System Status (2)

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