Redback A 4469 User manual

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Redback® A 4469 Audio Switcher
Operating Manual
A 4469 Audio Switcher
Optional Accessories
A 4658 Power Injector (U/UTP Cat5)
A 4660 Emergency Paging Microphone Console (U/UTP Cat5)
A 4660 Paging Console A 4658 Power Injector
IMPORTANT NOTE:
Please read these instructions carefully from front to back prior to installation.
They include important setup instructions.
Failure to follow these instructions may prevent the unit from working as designed.
Distributed by Altronic Distributors Pty. Ltd.
Phone: [phone] Fax: [phone] Internet: www.altronics.com.au
User manual revision number: 1.4 30/08/2023

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Redback® A 4469 Audio Switcher
REDBACK is a registered trademark of Altronic Distributors Pty Ltd
You may be surprised to learn that Altronics is still manufacturing hundreds of product lines right here in Australia. We
have resisted the move offshore by offering our customers better quality products with innovations to save them time and
money.
Our Balcatta production facility manufactures/assembles:
Redback public address products
One-shot speaker & grill combinations
Zip-Rack 19 inch rack frame products
We strive to support local suppliers wherever possible in our supply chain, helping to support Australia’s manufacturing
industry.
Redback Audio Products
100% developed, designed & assembled in Australia.
Since 1976 we have been manufacturing Redback ampliers in Perth, Western Australia. With over 40 years experience
in the commercial audio industry, we offer consultants, installers and end users reliable products of high build quality with
local product support. We believe there is signicant added value for customers when purchasing an Australian made
Redback amplier or PA product.
Local support & feedback.
Our best product features come as a direct result of feedback from our customers, and when you call us, you speak to a
real person - no recorded messages, call centres or automated push button options.
It’s not only the assembly team at Altronics who are employed as a direct result of your purchase, but hundreds more at
local companies used in the supply chain.
Industry leading 10 year warranty.
There’s a reason we have the industry leading DECADE warranty. It’s because of a long tried and tested history of bullet-
proof reliability. We’ve heard PA contractors tell us they still see the original Redford amplier still in service in schools.
We offer this comprehensive parts & labour warranty on almost every Australian Made Redback public address product.
This offers both installers and end users peace of mind that they will receive prompt local servicing in the rare event of any
problems.
Published by Altronic Distributors
© 2023 Altronic Distributors

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Redback® A 4469 Audio Switcher
CONTENTS
Page
1.0 Overview 4
2.0 Features 4
3.0 Front panel guide 5
4.0 Rear panel connections 5
5.0 Connecting the A 4469 Audio Switcher to Ampliers and Speakers 6
Option 1 : Individual Zone Ampliers using Microphone Level Signals 6
Option 2 : Individual Zone Ampliers using Line Level Signals 6
Option 3 : One Zone Amplier using Mic or Line Level Signals and individual speakers for each zone 7
6.0 A 4660 Paging Console Overview 8
6.1 Connecting the Paging Console 8
6.2 Connecting the Paging Console with a power injector 9
6.3 Cascading two Paging Consoles 9
7.0 A 4660 Home Screen 10
8.0 A 4660 Settings 11
8.1 System Settings 11
8.2 Backlight Settings 12
8.3 PIN Access 12
8.4 Labels 12
8.5 Zone Lock 12
8.6 Microphone Settings 13
9.0 Understanding and Connecting the BGM (Background Music) 14
9.1 Background Music (Rear of A 4469) 14
9.2 Local Background Music (Via A 4660 Paging Console) 14
9.3 A 4660 Background Music Sources 15
11.0 Troubleshooting 16
12.0 Specications 16

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Redback® A 4469 Audio Switcher
1.0 OVERVIEW
The A 4469 Audio Switcher provides a Microphone level or Line level output which can be connected directly to the inputs
of up to four ampliers to provide up to four zones of audio. A BGM input on the rear of the A4489A directs background
music to all zones until over-ridden by zone paging.
Zone paging is achieved with the addition of A 4660 paging consoles.
The A 4660 paging console provides up to 4 zones of paging, and allows the operator to manually select any zone or
any combination of zones. A pre-announcement and post announcement chime is available at the paging console and
through the PA system. Provision has also been made on the A 4660 for a local BGM input for background music.
Connection between the A 4660 and A 4469 is via a Cat5e/6 cable which carries power and the balanced audio output
from the microphone.
2.0 FEATURES
A 4469
• Four output zones
• Microphone or Line level output
• BGM input for background music to all zones
A 4660
• Four zones of paging.
• Pre-announcement chime (optional A 4660).
• Post-announcement chime (optional A 4660).
• Chime volume adjustment
• Mic volume adjustment
• Additional BGM Input(paging microphone)
• High level balanced output via Cat 5 cable

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Redback® A 4469 Audio Switcher
3.0 FRONT PANEL GUIDE
Figure 1 shows the layout of the A 4469 front panel.
Fig 1
1 RJ45 connector (Mic 1, Mic 2)
For connection back to the A 4660 paging consoles. Either port can be used.
Note: If two paging consoles are required they must be cascaded of one RJ45 port.
2 RJ45 connector (Output)
Not Used
3 Power LED
Illuminates when the unit has power.
4 24V DC connector
2.1mm DC jack (centre pin positive). Connect the supplied plugpack to this connector.
5 24V DC connector
Screw terminal connections. Connect this to a 24V DC backup battery system if required.
4.0 REAR PANEL CONNECTIONS
Figure 2 shows the layout of the A 4469 rear panel.
Fig 2
1 BGM In
This is the input used to supply Background Music to the zone outputs.
2 Audio In
This is the input used to supply audio to the zone outputs.
3 Zone 1-4 Audio Outputs
These are switched audio outputs which output the signal present at the “Audio In” terminals when the
particular zone is triggered by a paging console.
4 Line Out
This is the line level audio output from the paging console/s.
5 Mic Out
This is the low level audio output from the paging console/s.
Mic OutLine OutOUT 1OUT 2OUT 3OUT 4Audio InBGM In
123 4 5
H C
H CH CH CH CH CH C
H C
Mic Out
MIC 1
OUT 3OUT 4BGM In
24V DC
IN
+
-
MIC 2 OUTPUT Power 24V DC IN
+ -
1234
5

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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 Congurations
There are three basic different congurations for switching the audio output from the A 4469 Audio Switcher to the
output zones.
Option 1 : Individual Zone Ampliers 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 gure 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 ampliers with low level balanced inputs.
Fig 3
Option 2 : Individual Zone Ampliers 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 gure 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 ampliers with Line level balanced
inputs.
Background Music can be supplied to each zone by connecting a Background music source to the “BGM In” terminals.
MIC LEVEL SIGNAL
Typical connection of the A 4469 with individual ampliers for each zone using mic levels
240V AC @ 50Hz
Fuse 800mA
Line Mic
L
R
OUTPUT +
–
2 1
3
240V AC @ 50Hz
Fuse 800mA
Line Mic
L
R
OUTPUT +
–
2 1
3
240V AC @ 50Hz
Fuse 800mA
Line Mic
L
R
OUTPUT +
–
2 1
3
240V AC @ 50Hz
Fuse 800mA
Line Mic
L
R
OUTPUT +
–
2 1
3
ZONE 1 AMPLIFIER
ZONE 2 AMPLIFIER
ZONE 3 AMPLIFIER
ZONE 4 AMPLIFIER
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.
Mic OutLine OutOUT 1OUT 2OUT 3OUT 4Audio InBGM In
H C
H CH CH CH CH CH C
H C
A 4469 REAR PANELA 4469 FRONT PANEL
Mic Out
MIC 1
OUT 3OUT 4BGM In
24V DC
IN
+
-
MIC 2 OUTPUT Power 24V DC IN
+ -

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Redback® A 4469 Audio Switcher
Fig 4
Option 3 : One Zone Amplier using Mic or Line Level Signals and individual speakers for each zone
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 or the low level balanced signal from the “Mic Out” on the rear of the
A 4469 and feed them into the audio inputs of the zone amplifer as shown in gure 5. (Note: The Zone Amplier can be
up to a maximum of 500 Watts). The speaker output of the zone amplier is then fed into the “Audio In” terminals of the
audio switcher.
The audio from the “Zone 1” to “Zone 4” terminals are then fed directly into the speakers to provide the audio for the
four zones. Background Music can be supplied to each zone by connecting a Background music amplier to the “BGM In”
terminals.
Fig 5
Mic OutLine OutOUT 1OUT 2OUT 3OUT 4Audio InBGM In
H CH CH CH CH CH CH C
H C
Typical connection of the A 4469 with one amplier and individual speakers for each zone
A 4469 REAR PANELA 4469 FRONT PANEL
Mic Out
MIC 1
OUT 3OUT 4BGM In
24V DC
IN
+
-
MIC 2 OUTPUT Power 24V DC IN
+ -
MIC LEVEL SIGNAL
(TO MIC IN ON AMPLIFIER)
LINE LEVEL SIGNAL
(TO LINE IN ON AMPLIFIER)
240V AC @ 50Hz
Fuse 800mA
Line Mic
L
R
OUTPUT
+
–
2 1
3
NOTE : ONLY ONE OF THE MIC OUT/LINE OUT OUTPUTS
FROM THE A4469 SHOULD BE USED
240V AC@ 50Hz
Fuse 800mA
Line Mic
L
R
OUTPUT
+
–
2 1
3
BACKGROUND MUSIC AMPLIFIER
ZONE AMPLIFIER (Maximum of 60W)
Mic OutLine OutOUT 1OUT 2OUT 3OUT 4Audio InBGM In
H C
H CH CH CH CH CH C
H C
LINE LEVEL SIGNAL
Typical connection of the A 4469 with individual ampliers for each zone using Line levels
240V AC @ 50Hz
Fuse 800mA
Line Mic
L
R
OUTPUT +
–
2 1
3
240V AC @ 50Hz
Fuse 800mA
Line Mic
L
R
OUTPUT +
–
2 1
3
240V AC @ 50Hz
Fuse 800mA
Line Mic
L
R
OUTPUT +
–
2 1
3
240V AC @ 50Hz
Fuse 800mA
Line Mic
L
R
OUTPUT +
–
2 1
3
ZONE 1 AMPLIFIER
ZONE 2 AMPLIFIER
ZONE 3 AMPLIFIER
ZONE 4 AMPLIFIER
24V DC POWER SUPPLY
SUCH AS M 8968C PLUGPACK
OR SIMILAR 24V 1 AMP SUPPLY.
POWER MUST BE CONNECTED
AT THE A 4469 LINE OUT BOX.
A 4469 REAR PANELA 4469 FRONT PANEL
Mic Out
MIC 1
OUT 3OUT 4BGM In
24V DC
IN
+
-
MIC 2 OUTPUT Power 24V DC IN
+ -
DVD
REDBACK

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Redback® A 4469 Audio Switcher
6.0 A 4660 PAGING CONSOLE OVERVIEW
The A 4660 paging consoles allows for paging to any of the four switcher
output zones. This is achieved by selecting the zones required, or by press-
ing the all call button if all zones are required, and then simply pressing
the page button. General paging will override the background music to all
zones.
At the completion of the announcement, background audio will be restored
to previously selected zones.
If two consoles are connected, they operate on a rst in, rst served basis,
activating a system busy indicator on the inoperative console.
A maximum of 2 paging consoles can be connected back to the A 4469.
The consoles must be cascaded back to the A 4469 via Cat5e/6 cabling to
only one of the RJ45 ports on the rear of the unit (Refer to gure 6).
Note: A maximum of two paging consoles can be connected to the A 4469
and they must be cascaded off one Rj45 port.
Each unit must be assigned an address which is set when the A 4660 is rst
initialised, or it can be re-assigned by accessing the Factory Reset option
(see page 11). The address when connecting to the A 4469 must be 1 or 2.
The paging console can also be used as a secondary local source of back-
ground music (BGM).
6.1 Connecting the paging console
The console is connected to the A 4469 via standard Cat5e/6 cabling as
shown in gure 6.
Fig 6
There are two RJ45 ports on the back of the A 4469 either of which can be used to connect an A 4660 paging console.
The maximum distance between the A 4469 and a paging console is 200m.
Note: External power injectors (Redback ® A 4658) may be required if power problems are encountered from long cable
runs. This is shown connected to the console in the example of gure 7.
Mic Out
MIC 1
OUT 3OUT 4BGM In
24V DC
IN
+
-
MIC 2 OUTPUT Power 24V DC IN
+ -
Model: A 4660
To Main Unit To 2nd Console
Manufactured in Australia By
Altronic Distributors Pty. Ltd.
www.redbackaudio.com.au
A 4660 Paging Console
Either Mic1 or Mic2 RJ45 port can be used.
CAT5e/6 cable
(Max 200 Metres)

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Redback® A 4469 Audio Switcher
6.2 Connecting the paging console with a power injector
If power losses are encountered from long cable runs, an A 4658 power injector may be required. The console is connect-
ed to the A 4658 via standard Cat5e/6 cabling as shown in gure 7.
Fig 7
Note: Power Over Ethernet or POE’s cannot be used as the power injectors as they run on 48V. The A 4469 and
A 4660 systems are powered by 24V DC. Use of POE’s will void the warranty.
6.3 Cascading two paging consoles
When connecting two paging consoles to the amplier they must be cascaded and connected to only one of the two RJ45
ports on the rear of the A 4469, as shown in gure 8. Standard Cat5e/6 cabling is used and the maximum total cable run
length to the second paging console is 200m. If an A 4658 power injector is required, it can be connected before the rst
pagng console as shown in gure 7, or in line before the second paging console.
Note: A maximum of two paging consoles can be connected to the A 4469 and they must be cascaded off one Rj45 port.
Fig 8 Cascading A 4660 paging consoles.
Mic Out
MIC 1
OUT 3OUT 4BGM In
24V DC
IN
+-
MIC 2 OUTPUT Power 24V DC IN
+ -
Model: A 4660
To Main Unit To 2nd Console
Manufactured in Australia By
Altronic Distributors Pty.Ltd.
www.redbackaudio.com.au
A 4660 Paging Console
24V DC
PLUGPACK
A 4658
(If required)
Either Mic1 or Mic2 RJ45 port can be used.
CAT5e/6 cable
(Max 200 Metres to paging console)
Mic Out
MIC 1
OUT 3OUT 4BGM In
24V DC
IN
+
-
MIC 2 OUTPUT Power 24V DC IN
+ -
Model: A 4660
To Main Unit To 2nd Console
Manufactured in Australia By
Altronic Distributors Pty.Ltd.
www.redbackaudio.com.au
A 4660 Paging Console
CAT5e/6 cable
(Max 200 Metres from
A 4489A to 2nd A 4660)
Model: A 4660
To Main Unit To 2nd Console
Manufactured in Australia By
Altronic Distributors Pty.Ltd.
www.redbackaudio.com.au
A 4660 Paging Console
If a second A 4660 paging console
is required, it must be cascaded
from the rst paging console.
If the consoles don’t power up
due to power losses over the
cable run, an A 4658 power
injector may be required in line. Either Mic1 or Mic2 RJ45 port can be used.

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Redback® A 4469 Audio Switcher
7.0 A 4660 HOME SCREEN
Figure 9 below outlines the main functions of the A 4660.
Fig 9
1Menu Button - Press this to access the system settings (see section 8.0)
2Zone Selection - To page to a zone select the desired zones by pressing the buttons 1- 4
3Page Button - Press this button to page to selected zones. Press again to cancel paging or press the cancel
button.
Note: If the Chime In or Chime Out are enabled (see section 8.6) these will activate before and/or after paging is
available.
4All Call Button - Press this button to quick select all zones.
5Store/Recall Button - Use this button to store zones to a fast recall button.
To store a group of zones select the zones you wish to group together. Once the desired zones are
selected, press store. You can now assign a group to a button. Select a button and give it a label using
the displayed keyboard. Press enter when done.
To recall zones press the recall button and select one of the labelled buttons to recall. The zones stored
in this group will then illuminate automatically. Press the page button to page.
6BGM Disabled/Enabled - Press this button to enable or disable the background music option (see section 9.0).
7BGM active indicator - The dot in the corner of the zone button indicates which zones have the BGM selected.
Zone 2
BGM will play from SD card
Zone 1 Zone 3 Zone 4
Page
Select a zone to begin
All Call
Recall
BGM
DISABLED
Installer Label
1
2
4
3
5
6
7