Guardian Telecom Inc.
Installation and Operation
Model AS12
CH-4
CH-3
CH-2
CH-1
AMP-FAIL
Adjustments
Internal Vox
AUDIO INPUTS
70 Volt
Amplifier Outputs
VOX Logic Inputs
CH-SB-FAIL
INDICATOR
FAILED CHANNEL
FAILURE
STAND-BY CHANNEL
AUDIO OUTPUTS
LOGIC INPUTS
CHANNEL
PRE-AMP ACTIVE
ALLOCATOR
BACKUP CHANNEL
DETECTOR
FAIL CHANNEL
CONTROL UNIT
CH-SB
CH-4
CH-3
CH-2
CH-1
CH-4
CH-3
CH-2
CH-1
Figure 4 - Block Diagram
DA388
MIC 1
8 ZONE
ALL CALL
EMERGENCY
PRE-AMP
A
PABX
8 ZONES
BGM
B
C
ALARM
GEN.
A
B
C
VOX
1 - 4
VOX
5 - 8
AUDIO OUTPUTS
1 - 4, B1
5 - 8, B2
LOGIC INPUTS
AUDIO INPUTS
LOGIC OUTPUTS
C
AG17
Figure 5 - Typical System Installation (with 2 AS12’s)
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