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Redback® A 4469 Audio Switcher
5.0 CONNECTING THE A 4469 AUDIO SWITCHER TO AMPLIFIERS OR SPEAKERS
The balanced audio output from the paging console is transmitted down the Cat5e/6 cable to the Audio Switcher which
splits and converts the signal to microphone and line level outputs. These are provided as screw terminal connections.
Connection Configurations
There are three basic different configurations for switching the audio output from the A 4469 Audio Switcher to the
output zones.
Option 1 : Individual Zone Amplifiers using Microphone Level Signals
The audio from the paging console/s is fed down the Cat5e/6 cable to the A 4469 audio switcher. Take the low level
balanced signal from the "Mic Out" terminals on the rear of the A 4469 and feed them back into the "Audio In"
terminals on the rear of the A 4469 as shown in figure 3.
The audio from the "Zone 1" to "Zone 4" terminals, are then fed into individual amplifer mic level inputs to provide the
audio for the four zones. The audio from these output terminals are switched internally by relays, and are not present
unless the zone is activated by the A 4660 paging console/s.
Use this method if using amplifiers with low level balanced inputs.
Typical connection of the A 4469 with individual ampli ers for each zone using mic levels
A 4469 FRONT PANEL
BGM In
OUT 4
OUT 3
MIC 1
MIC 2
OUTPUT
Option 2 : Individual Zone Amplifiers using Line Level Signals
The audio from the paging console/s is fed down the Cat5e/6 cable to the A 4469 audio switcher. Take the line level
(1V balanced signal) from the "Line Out" terminals on the rear of the A 4469 and feed them back into the "Audio In"
terminals on the rear of the A 4469 as shown in figure 4.
The audio from the "Zone 1" to "Zone 4" terminals, are then fed into individual amplifer line level inputs to provide the
audio for the four zones. The audio from these output terminals are switched internally by relays, and are not present
unless the zone is activated by the A 4660 paging console/s. Use this method if using amplifiers with Line level balanced
inputs.
Background Music can be supplied to each zone by connecting a Background music source to the "BGM In" terminals.
6
Redback® Proudly Made In Australia
-
+
Mic Out
BGM In
24V DC
24V DC IN
Power
IN
+
-
H
MIC LEVEL SIGNAL
24V DC POWER SUPPLY
SUCH AS M 8968B PLUGPACK
OR SIMILAR 24V 1 AMP SUPPLY.
POWER MUST BE CONNECTED
AT THE A 4469 LINE OUT BOX.
A 4469 REAR PANEL
Audio In
OUT 4
OUT 3
OUT 2
OUT 1
Line Out
Mic Out
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
240V AC @ 50Hz
Fuse 800mA
240V AC @ 50Hz
Fuse 800mA
240V AC @ 50Hz
Fuse 800mA
240V AC @ 50Hz
Fuse 800mA
Fig 3
ZONE 1 AMPLIFIER
L
+
2
1
3
OUTPUT
R
Line
Mic
ZONE 2 AMPLIFIER
L
+
2
1
3
OUTPUT
R
Line
Mic
ZONE 3 AMPLIFIER
L
+
2
1
3
OUTPUT
R
Line
Mic
ZONE 4 AMPLIFIER
L
+
2
1
3
OUTPUT
R
Line
Mic
www.redbackaudio.com.au
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