Paging Console
52 Bedienungsanleitung
5.1 Block Diagram
Push
Button 1
+3.3V
-3.3V
RJ-45
SPI
EXT.
PCA
BUS
M icrophone
Ext. M ic
Limiter
I-Supervision
Low-Pass
Mic-Amp
Sym -Amp
Line-Am p
Service
Connector
M OS-Relay
Line-Am p
Mixer
Pilot
Beep
Alert
Audio
RJ-12
Pilot-Detect
Push
Button 2
Push
Button 3
Keyboard
Microcontroller
DC
DC
CAN-BUS
Contrast / Brightness
Display
Pilot Tone
Pilot Tone
RJ-45
LINE IN
PTT
6MHz