Bosch 3.5 User Manual
Bosch Security Systems | 2011-02
2011-02 | Installation and User Instructions | 5 | Call Stations
en | 216
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.
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.
figure 18.1: Block diagram
A/D
D/A
Power/Fault (2)
Network
Processor
+
DSP
Keypad
Keypad
(max. 16)
Headset
Microphone
PTT
POF
Control Inputs
POF
Network
Redundancy
Switching
I
O
Call Status
System Status (2)