Valcom V-9933A Manual Do Utilizador
5
Valcom
Page
Control
Unit
Page
Control
Unit
T
R
V-9933A
Power
Supply
Supply
-24V
GND
T
R
IN
OUT
To
Telephone
System
Telephone
System
Maximum 150 Amplified
One-Way Speaker Assemblies
One-Way Speaker Assemblies
Zone
T
R
Figure 2 - Simplified Block Diagram of Connections
Maximum of 4
optional V-9934
Remote Mics
EXT MIC IN
Audio
LEVEL SENSE
CIRCUIT
CIRCUIT
CONTROL
CIRCUIT
CIRCUIT
PAGE SENSE
CIRCUIT
CIRCUIT
AMPLIFIER
MICROPHONE
T
R
OUTPUT
T
R
INPUT
MICROPHONE GAIN
CONTROL
CONTROL
REGULATOR
-12
-24
-24
SIMPLIFIED SCHEMATIC
-24VDC
GND
FIGURE 3