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