Block Diagram - Philips SM30 User Manual

Radio 1
Cassette
2
C D
3
message
1
2
Microphone
3
4
5
6
1
Control input
8
AC
DC
Fig. 1 - Block diagram
2-channel p.a. amplifier for
SQ45
call and music applications
music call
input
1V
Line output module
Music input
module
Recorded
module
Call station 1
input
module
2
input
module
3
Optional
input
module
module
Power
supply
SM30
Pilot tone
Chime-,
attention-,
alarm-,
signals
Microprocessor
board
Displ/keyboard
Sound Management
System
3
output
100/70/50V
1
1
Zone relay
module
6
2 7
Zone relay
module
12
3 13
Zone relay
module
18
1
Control relay
module
12
4SM30011
Loudspeaker
zones 1-6
Loudspeaker
zones 7-12
Loudspeaker
zones 13-18
Relay
outputs 1-12