Redback A 4480B User manual

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Redback® A 4480B 8 In to 8 Out Audio Switcher
Operating Manual
A 4480B 8 Input / 8 Output Audio Switcher
A 4481 Paging Console
A 4476 Preset Selector Wallplate
A 4931, A 4931V, A 4932 Local Input Wallplate or Box
A 4493 Music Source Selector Wallplate
Redback® Proudly Made In Australia
Distributed by Altronic Distributors Pty. Ltd.
Phone: [phone] Fax: [phone] Internet: www.altronics.com.au
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 system from working as designed.
A 4481 A 4493
A 4476 A 4931
User manual revision number: 1.0 09/04/2020

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Redback® A 4480B 8 In to 8 Out Audio Switcher
REDBACK is a registered trademark of Altronic Distributors Pty Ltd
Since 1976 Redback ampliers have been manufactured in Perth, Western Australia by Altronics. 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
Australian Made Status
All Redback house products made by Altronics will now be sporting the ofcial Australian Made logo. Since starting manu-
facturing of commercial audio equipment in the mid 70’s we have always taken pride in producing a quality local product.
The new adoption of the Australian Made logo will help us get the word out to local and export markets that our
products carry the ofcial compliance seal of the Australian Made campaign. We have always pushed our ‘local is better’
line in all of our marketing efforts, it’s always an added boost when you are backed up by a widely recognised and
respected icon.
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
bulletproof reliability. We’ve heard PA contractors tell us they still see the original Redford amplier still in service in schools
- that’s over 40 years of operation - and still going strong!
Published by Altronic Distributors
© 2020 Altronic Distributors

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Redback® A 4480B 8 In to 8 Out Audio Switcher
1.0 Overview
1.1 Introduction 5
1.2 Features 6
1.3 What’s in the box 6
1.4 Front panel guide 7
1.5 Rear panel connections 8
2.0 Setup Guide
2.1 A 4573 Alert/Evac Module 11
2.2 Connecting audio sources 13
2.3 Connecting outputs 13
2.4 Connecting power 14
2.5 Conguring the inputs to outputs/zones 14
2.5.1 Routing audio to a zone 15
2.6 Adjusting the bass, treble and input volumes 16
2.7 Adjusting the paging console and emergency input volumes 16
2.8 Adjusting the zone volumes 16
3.0 Local Audio & Paging Console Options
3.1 Local audio conguration 16
3.2 Paging console conguration 17
3.3 Conguring the paging console lockout on the LCD 17
3.4 Conguring the program isolate on the LCD 17
4.0 Emergency Overrides & Priorities
4.1 Priorities 20
4.2 Priority input 20
4.3 Labelling of input sources, zones & presets 21
4.3.1 How to label input sources & zones with USB keyboard 21
4.4 Presets 22
4.4.1 User dened presets (1 to 4) 22
4.4.2 Default preset 22
4.4.3 Last setting preset 22
4.4.4 Setting up the presets 22
4.4.5 Modifying presets 22
4.5 Button lockout feature 22
4.6 Master reset function 22
Contents

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Redback® A 4480B 8 In to 8 Out Audio Switcher Contents
5.0 Peripheral Connections
5.1 Paging console overview (A 4481) 23
5.1.1 Features 24
5.1.2 DIP switch settings 24
5.1.3 Connecting the paging consoles 24
5.1.4 Cascading the paging consoles 25
5.1.5 Cascading the paging consoles with 8 zone wallplates and a preset plate 26
5.1.6 Multi-zone paging 26
5.1.7 Zone lockout 26
5.1.8 Store & recall 27
5.1.9 Emergency override 27
5.1.10 Paging console busy 27
5.2 Music source selection wallplate overview (A 4493) 28
5.2.1 Features 28
5.2.2 Menu accessed features 28
5.2.3 DIP Switch settings 29
5.2.4 Screen Layout Guide 29
5.2.5 Navigating The Menu 30
5.3 Local microphone/line input wallplate (A 4931)
5.3.1 Features 31
5.3.2 Connections 31
5.3.1 Connecting the A 4931 local input wall plates to the A 4493 Zone wall plates. 31
5.4 Preset selector wallplate (A 4476)
5.4.1 Features 32
5.4.2 DIP switch settings 32
6.0 Troubleshooting
6.1 Symptoms & remedies 33
6.1.1 Installation of replacement microprocessor card 33
6.1.2 RJ45 cabling conguration for system components 33
7.0 Help
7.1 Help screens 34
7.1.1 Main screen help 34
7.1.2 Preset help 34
7.1.3 PA On/Off help 34
8.0 Specications
8.1 Specications 35
9.0 Programming Sheets
9.1 A 4480B programming sheet 36
9.2 A 4481 programming sheet 38
10.0 Firmware Updates 40

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Redback® A 4480B 8 In to 8 Out Audio Switcher
Overview
1.0 OVERVIEW
1.1 INTRODUCTION
Designed to meet the demands of todays complex installations, this unit is a very versatile cost effective public address/
background music control system.
In total there are 16 inputs:
• 1 emergency paging input
• 1 alert/evac input
• 6 auxiliary inputs and 2 auxiliary/line inputs
• 2 zone paging inputs
• 1 priority input
• 8 local inputs
Operation is as follows:
Emergency Paging mutes all other inputs, including alert/evac signals and transmits to all zones. Note: the emergency
paging input will accept either a low level balanced mic signal (3mV) or a high level balanced signal (700mV). This enables
sources other than a microphone to be used. For example, the output of a building occupancy warning system could feed
into this input and transmit either verbal messages from the microphone or the alert & evacuation tones. All on an “all
call” basis.
Alert/Evac signals mutes all other inputs, except emergency paging and transmits to all zones.
Zone Paging (via optional A 4481 paging station) mutes auxiliary signals and transmits to selected zones. Zone paging
may be prohibited for each zone from the front panel on the mic console.
Priority Input mutes auxiliary signals and transmits to selected zones. This input has the same priority as the A 4481
paging stations and works on a “rst in best dressed” basis. This input is enabled via a trigger input or vox enabled dual
RCA input.
Local Inputs (1-8 via optional A 4931 wall plate) mutes any auxiliary source selected to that zone. Local inputs can be
congured for either balanced mic or line operation.
Aux inputs (1-8) can be switched to any zone or combination of zones.
Each of the eight auxiliary inputs have tamper proof volume, treble and bass controls, plus a signal presence indicator.
Volume controls are provided for each zone output.
A programmable LCD indicates which input is selected to which outputs.
Tamper proof volume controls and signal presence indicators are provided for local microphone paging and emergency
microphone paging.
Remote selection wallplate (A 4493) may be connected via Cat5e cable to each zone. This wallplate enables selection of
any auxiliary input source, volume adjustment of that zone plus the option to connect a local input source (mic or line) via
the optional A 4931 wallplate.
Memory presets are programmable to provide easy recall of certain system congurations including a default setting, last
memory setting and 4 memory presets. This is selected from the front panel, or remotely via the optional A 4476 preset
selector wallplate (see 5.4, page 28).
System lockout feature to prevent unauthorised adjustment of system settings.
WARNING
System components are connected using standard “pin to pin”
conguration RJ45 data cabling. When installing ensure all connections
are veried before switching any system component on.
Failure to follow the correct wiring conguration may result in damage to
system components.
For the correct wiring conguration, see section 6.0 “Troubleshooting”.

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Redback® A 4480B 8 In to 8 Out Audio Switcher Overview
1.2 FEATURES
• 8 Stereo RCA line inputs (internally mono mixed).
• 2 Microphone XLR inputs with phantom power option.
• Adjustable line input sensitivity 0.3/0.7V.
• Individual bass, treble and volume controls of all line inputs.
• 8 Balanced 3 pin XLR line outputs.
• Individual volume controls of all 8 outputs.
• Alert/evacuation/pre chime tone generator included (alert/evac tones comply to AS1670.4) .
• Emergency balanced input with selectable phantom power and input sensitivity.
• Programmable labelling of input sources and output zones via USB keyboard.
• Programme isolate function.
• Four programmable presets.
• Tampering lockout feature.
• Power fail trigger.
• 240V AC or 24V DC operation.
• 19” Rack Mount (2 unit).
Optional Features
• Zone and emergency over-ride paging via A 4481 paging console.
• Remote zone control of volume and music sources via A 4493 wall plate.
• Preset selection via A 4476 preset wall plate.
• Local microphone or music input connection via A 4931 and A 4493 wall plates.
Priority Order
Priority 1 is the highest priority and overrides all others priorities. Priority 2 is next, then priority 3 and so on.
• Priority 1 - Emergency microphone.
• Priority 2 - A 4481 paging consoles 1 & 2 (if tted, in emergency paging mode).
• Priority 3 - Alert/evacuation tones.
• Priority 4 - A 4481 paging console (in normal mode).
• Priority 5 - Local zone input, if being used.
• Priority 6 - Line inputs.
1.3 WHAT’S IN THE BOX
A 4480B Audio Switcher
M 8973 24V 5A Power Supply
240V AC power lead (suits Australian Standard)
USB - PS2 compatible keyboard (Altronics D 2111)
Acrylic anti tamper cover

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Redback® A 4480B 8 In to 8 Out Audio Switcher
1.4 FRONT PANEL GUIDE
Fig 1.4A shows the layout of the A 4480B front panel.
Fig 1.4A
1 Emergency microphone volume control
Use this control to adjust the volume of the emergency microphone input.
2 Emergency microphone signal present indicator
This LED illuminates to indicate a signal is present at the emergency microphone input.
3 Paging microphone signal present indicator
This LED illuminates to indicate a signal is present at the paging microphone input.
4 Paging microphone volume control
Use this control to adjust the volume of the paging microphone input.
5 Inputs 1-8 signal present indicators
These LEDs illuminate to indicate a signal is present at the corresponding RCA inputs.
6 Inputs 1-8 bass and treble controls
Use these controls to adjust the bass and treble of the 8 input sources as desired.
7 Zone volume controls
Use these to adjust the volumes of the zones.
8 Zone selection buttons
These buttons select the output zone.
9 Preset selector button
This button is used to select pre-programmed preset congurations. (See section 4.4 Presets).
Public address on/off button
This button is used to switch on or off the general paging to a particular zone. (See section 3.3 for more
information). This does not block emergency paging.
Program isolate button
This button is used to isolate inputs from a particular zone. (see section 3.4 for more information)
Help button
Pressing this button provides help on the selected option. (See section 7.0 Help).
Conrm button
This button is used to conrm your selected changes. Push “conrm” and “cancel” buttons at the same time
to lock and unlock the front panel controls.
Cancel button
This button is used to exit from the current menu or cancel the selected option. Push “conrm” and
“cancel” buttons at the same time to lock and unlock the front panel controls.
Overview
Zone 1 Zone 3 Zone 5 Zone 7
Zone 2 Zone 4 Zone 6 Zone 8
Keyboard
USB
Power
Signal
Emergency
Input
- +
Signal
Paging
Console
Signal Signal Signal Signal Signal Signal Signal Signal
Vol 1 Vol 2 Vol 3 Vol 4 Vol 5 Vol 6 Vol 7 Vol 8
Treble Treble Treble Treble Treble Treble Treble Treble
Bass Bass Bass Bass Bass Bass Bass Bass
Input 1 Input 2 Input 3 Input 4 Input 5 Input 6 Input 7 Input 8 A 4480B
8 X 8 Audio Switcher
One
Two
Three
Four
Five
Six
Seven
Eight
Presets
PA on/o
Isolate
Help
Conrm
Cancel
- +
6
0
2
4
8
10
6
0
2
4
8
10
6
0
2
4
8
10
6
0
2
4
8
10
6
0
2
4
8
10
6
0
2
4
8
10
6
0
2
4
8
10
6
0
2
4
8
10
21 43 5 8 9 10
11
12
13
6 7

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Redback® A 4480B 8 In to 8 Out Audio Switcher Overview
10 Power switch
Use this to switch to turn on mains power 220-240V AC.
11 On indicator
This led indicates the unit has power.
12 Keyboard USB input
This USB connection is for a keyboard for programming the LCD.
13 LCD
The LCD is used to indicate which inputs are selected to which outputs.
14 Inputs 1-8 volume controls
Use these to adjust the volumes of the RCA input sources.
1.5 REAR PANEL CONNECTIONS
Fig 1.5A shows the layout of the A 4480B rear panel.
Fig 1.5a
1-4 A 4573 Alert/Evac/Chime Module Controls
This module generates Alert and Evacuation tones for use in an emergency. Triggering of these tones and the
volume adjustment trimpots are located here. Refer to section 2.1 for more details.
5 Stereo RCA input connectors
Connect these inputs (1-8) to the input audio sources such as a CD player etc. These inputs are converted to
mono internally. Note. Inputs 1 & 2 also have a line level XLR input (Refer to section 7).
6 RCA input sensitivity DIP switches
These DIP switches are used to set the input sensitivity of the 8 auxiliary input sources. Each input can be cong
ured for an input sensitivity of 0.3V or 0.7V. See g 1.5b.
Output levels
Voice Chime Alert
Over & Evac
24VDC In
(4A M205)
Lift/Chassis ZONE PLATES OR PRESET PLATE
Keyboard
INPUTS
SW2 SW1
8 7 6 5 4 3 2 1
SW5 ON OFF
1 Phantom Phantom
Power On Power O
2 Mic Level Line Level
Switches 3 & 4 Not Used
Vox
Level
Volume
Priority Input
L R
Vox
Level Trigger
To Paging Consoles/Preset Plate
3 4
1 2 3 4
ALERT - EVACUATION MODULE
1 2 3 4
L
R
SW3
EV
COM
CH1/
CAN
CH2
AL
21
3
1 - Shield
2 - Hot
3 - Cold
1 - Shield
2 - Hot
3 - Cold
21
3
SW3 Input 1 & 2 XLR
Phantom Power Settings
SW ON OFF
(1) Input 1 ON OFF
(2) Input 2 ON OFF
Triggers
OUTPUTS
8 7 6 5 43 2 1
EMERGENCY INPUT
DC Fuse
Earth Lift
+
-
24VDC In Power Fail
+_
Manufactured in Australia By
Altronic Distributors Pty. Ltd.
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BCD & DIP SWITCH SETTINGS
DIP SWITCH CHIME CONTACT
4 5 6 7 CH2 CH1/CANCEL
OFF OFF OFF OFF Pre Announce Ding Dong
ON OFF OFF OFF Pre Announce RepeatingBong
OFF ON OFF OFF Pre Announce Repeating Bing
OFF OFF ON OFF Pre Announce CANCEL
OFF OFF OFF ON Ding Dong Pre Announce
ON ON ON ON Ding Dong Repeating Bong
OFF ON ON ON Ding Dong Repeating Bing
ON OFF ON ON Ding Dong CANCEL
ON ON OFF ON Repeating Bong Pre Announce
ON ON ON OFF Repeating Bong Ding Dong
OFF OFF ON ON Repeating Bong Repeating Bing
OFF ON OFF ON Repeating Bong CANCEL
OFF ON ON OFF Repeating Bing Pre Announce
ON ON OFF OFF Repeating Bing Ding Dong
ON OFF ON OFF Repeating Bing Repeating Bong
ON OFF OFF ON Repeating Bing CANCEL
The Alert/Evacuation module has multiple chime options, a recordable
voice-over message and adjustable alert to evacuation tone switch-over times.
These options are selectable inside the unit, via the BCD rotary switch and
DIP switches located on the alert/evacuation module (refer to below settings).
ON OFF
Momentary Alert
& Evac operation
Latched Alert
& Evac operation
1
2
3
4
Voice-over
message ON
Voice-over
message OFF
Not Used NotUsed
Mic recording
enabled
Mic recording
disabled
DIP
SW
1 2 3 4
SW5
1 2
(Maximum 500mA per output)
8 7 6 5 4 3
1
SW4
(Not Used)
16GB
Maximum
Micro SD Card
2
1 2 3 41 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
Aux Input Sensitivity
DIP Switch Settings
SW1 ON OFF
(1) Input 1 0.3V 0.7V
(2) Input 2 0.3V 0.7V
(3) Input 3 0.3V 0.7V
(4) Input 4 0.3V 0.7V
SW2 ON OFF
(1) Input 5 0.3V 0.7V
(2) Input 6 0.3V 0.7V
(3) Input 7 0.3V 0.7V
(4) Input 8 0.3V 0.7V
2 1
3
21
3
2 1
3
2 1
3
21
3
21
3
21
3
21
3
21
3
21
3
21
3
158 11
6
7
2 3 4 9 10
18 1314151617
23 19 2122242526
20
12
Aux Input Sensitivity
DIP Switch Settings
SW1 OFF ON
(1) Input 1 0.3V 0.7V
(2) Input 2 0.3V 0.7V
(3) Input 3 0.3V 0.7V
(4) Input 4 0.3V 0.7V
SW2 ON OFF
(1) Input 5 0.3V 0.7V
(2) Input 6 0.3V 0.7V
(3) Input 7 0.3V 0.7V
(4) Input 8 0.3V 0.7V
Fig 1.5b

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Redback® A 4480B 8 In to 8 Out Audio Switcher
7 XLR line inputs
inputs 1 & 2 female XLR inputs.
8 XLR input phantom power settings
Phantom power can be applied to the XLR inputs via DIP switch 3. Refer to Fig 1.5c.
9 Optional Dip Switch Settings
Currently not used
10 Emergency input settings DIP switches
Change the sensitivity of the 3 pin emergency XLR from balanced mic level to balanced line level. Also selectes
phantom power to this input. See g 1.5d.
11 Male XLR balanced line output connectors
Connect these outputs (1-8) to the zone ampliers. Use a 3 pin female XLR connector (pin 1 GND, pin 2 Cold,
pin 3 Hot).
12 Emergency microphone female 3 pin XLR socket
Use this input for emergency or “all call” paging. This has overall priority and goes to all zones. This input is
suitable for connection to the output of a building EWIS system allowing remote paging and alert/evac tones to
be transmitted on an “all call” basis. Sensitivity can be set to mic (0.3V) or line level (0.7V) using the DIP
switch. See SW5 in g1.5d for details.
13 RJ45 connectors for preset plate or paging consoles
These RJ45 ports connect to the A 4481 zone paging consoles or A 4476 preset plate.
NOTE: A maximum of eight A 4481 mic consoles and a single A 4476 preset plate may be used at the same time.
In this case only seven A 4475 zone wallplates can be used. The A 4476 will operate in any “Zone wall plate” or
“Paging console” RJ45 port.
14 Emergency input Vox Level
Use this trimpot adjustment to change the vox level for the emergency mic input.
15 Priority input Volume
Use this trimpot adjustment to change the output level of the priority input.
16 Pririty input trigger
Use this contact to trigger the priority input.
17 Priority Input RCA Connectors
Connect this input to an input audio source such as telephone paging, or special event player such as the playing
of the “ODE”. This inputs is converted to mono internally.
18 Priority Input Vox Level
Use this trimpot adjustment to change the vox level for the priority input.
19 RJ45 connectors for zone wall plates
These RJ45 ports connect to the A 4475 remote zone wallplates, if used.
Overview
1 2 3 4
Input 1 & 2 XLR
SW3
SW ON OFF
Phantom Power
(1) Input 1 ON OFF
(2) Input 2 ON OFF
(3) Not Used
(4) Not Used
Dip Switch 3 Settings
ON
1 2 3 4
Fig 1.5c
1 2 3 4 SW5 ON OFF
1 Phantom Phantom
Power On Power O
2 Mic Level Line Level
Switches 3 & 4 Not Used
SW5
ON
1 2 3 4
Fig 1.5d

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Redback® A 4480B 8 In to 8 Out Audio Switcher Overview
20 USB keyboard connector
Connects to a standard USB keyboard for programming the front panel LCD.
21 Micro SD Card Socket
This socket is used to update rmware (Micro SD card not supplied).
22 Power Fail connector
A closing contact which can be used to trigger a buzzer or lamp via an external relay for indication of a power fail.
23 DC fuse (4A M205)
This fuse protects the internal power supply. Replace with 4A rated fuse only.
24 Pluggable 24VDC backup power socket
Connects to 24V DC power source via Euroblock screw terminals. Observe correct polarity when connecting.
25 24VDC power socket
Connects to 24V DC plugpack supplied with 2.1mm adaptor.
26 Earth Lift switch
This switch is used to isolate the input earth from the chassis to help eliminate earth loops or hum.
2.0 SETUP GUIDE
This is intended to be a quick setup for a minimal install. Section 3.0 will build on the initial setup and cover the installa-
tion of peripheral connections and more in depth detail on programming the unit. In this basic conguration we will use
a setup in a bar as an example. The install requires 2 audio sources, a tuner and a dvd player. This audio will be fed to 4
different zones, the main bar, the beer garden, the restaurant, and the kitchen. All adjustments will be made from the
front panel of the A 4480B.
A programming template in PDF format is available to download from the Altronics website. This allows you to map your
inputs, outputs, zone names, source names and presets before you commence programming. A printed copy is located at
the end of operating manual (see section 9.0).
2.1 ALERT/EVACUATION/CHIME MODULE
The A 4573 module generates pre announcement chimes and alert and evacuation tones.
Separate volume controls are included for adjustment of the alert/evac tone level, the chime level and the message
voice-over level. The chime and alert/evac tones are triggered by closing contacts via a ve way euro block. These triggers
can be set to momentary or alternate action by on board DIP switches.
Chimes included on the module include pre announcement, Ding Dong, repeating Bing and repeating Bong. All of these
are DIP switch selectable.
The module is also tted with a switch over option which changes the evacuation tone from the Alert tone to the
Evacuation tone after a set time. This can be adjusted from 30 seconds to 270 seconds in 30 second increments or it can
be switched off altogether.
A microphone has been included which is used to record an emergency voice over message if required. This message can
be turned on via DIP switches, and will play twice after the evacuation tone has repeated four times.
Fig 2.1a
AL CH2 CH1/
CAN
GND
EV

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Redback® A 4480B 8 In to 8 Out Audio Switcher
Setup Guide
Triggering the tones
The unit is triggered by closing the contacts on the 5 way pluggable header. There are four different trigger inputs as
shown in Fig 2.1a.
Evac tone - triggered by a closed contact between EV (alert tone) and GND (ground).
Alert tone - triggered by a closed contact between AL (alert tone) and GND (ground).
Chime 2 - triggered by a closed contact between CH2 (chime 2) and GND (ground).
Chime 1/Cancel - triggered by a closed contact between CH1/CAN (chime 1/cancel) and GND (ground).
The alert and evac triggers can be set to momentary or latched action. In momentary operation the alert or evac tones will
operate only while the trigger is activated. In latched operation the tones will operate continuously after they have been
triggered, even with a momentary contact. This option is set by DIP switch 1 (Refer to table 2 for DIP switch settings).
Switch Over Option
The A 4573 is equipped with a “switch over” option which switches the unit from the Alert tone to the Evacuation tone
automatically. This can be adjusted from 30 seconds to 270 seconds in 30 second increments or it can be switched off
entirely. This is adjusted by switch 1 (refer to table 1 for selection details).
Voice Over message
The A 4573 has a voice over option which is used to playback a recorded messsage. This is enabled by switching DIP
switch 2 to “ON” (Refer to table 2 for DIP Switch settings). Once enabled the recorded message will play twice after four
cycles of the evac tone.
Note: this voice over will only operate when the A 4573 is in evac mode.
To record a message, connect the supplied microphone to the 2 way euro block as shown in gure 2.1B. To start record-
ing, set DIP switch 8 to “ON” and start talking into the microphone. When nished recording, set the DIP switch back to
‘OFF”.
Adjusting Volume Levels
The output levels for the chime, alert/evac tones and the voice over are all adjustable via trimpots as shown in Fig 2.1B.
Note: The Alert and Evac tones are adjusted using the same trimpot. They cannot be adjusted separately.
Table 2: DIP Switch Settings
SW ON OFF
1 Momentary Alert Latched/Continuous Alert
& Evac Operation. & Evac Operation.
2 Voiceover ON. Voiceover OFF.
3
8 Mic Recording Mic Recording
ON. OFF.
Not Used
Table 1: Switch 1 Settings
SW1 Pos Switch Over Option
0 Disabled
1 Alert swtiches to Evac after 30 seconds
2 Alert swtiches to Evac after 60 seconds
3 Alert swtiches to Evac after 90 seconds
4 Alert swtiches to Evac after 120 seconds
5 Alert swtiches to Evac after 150 seconds
6 Alert swtiches to Evac after 180 seconds
7 Alert swtiches to Evac after 210 seconds
8 Alert swtiches to Evac after 240 seconds
9 Alert swtiches to Evac after 270 seconds

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Redback® A 4480B 8 In to 8 Out Audio Switcher Setup Guide
Fig 2.1b
Chime Options
There are two contacts available for activating the chime tones, and there are four different chimes available (pre
announcement, Ding Dong, Repeating Bing and Repeating Bong). It is possible to have two different chimes available to
use at the same time, but if the cancel trigger is required then the module is limited to one available chime trigger (Refer
to table 3 for selection details).
Table 3: DIP Switch Settings For Tones
DIP CHIME CONTACT
4 5 6 7 CH2 CAN/CH1
OFF OFF OFF OFF Pre Announce Ding Dong
ON OFF OFF OFF Pre Announce Repeating Bong
OFF ON OFF OFF Pre Announce Repeating Bing
OFF OFF ON OFF Pre Announce CANCEL
OFF OFF OFF ON Ding Dong Pre Announce
ON ON ON ON Ding Dong Repeating Bong
OFF ON ON ON Ding Dong Repeating Bing
ON OFF ON ON Ding Dong CANCEL
ON ON OFF ON Repeating Bong Pre Announce
ON ON ON OFF Repeating Bong Ding Dong
OFF OFF ON ON Repeating Bong Repeating Bing
OFF ON OFF ON Repeating Bong CANCEL
OFF ON ON OFF Repeating Bing Pre Announce
ON ON OFF OFF Repeating Bing Ding Dong
ON OFF ON OFF Repeating Bing Repeating Bong
ON OFF OFF ON Repeating Bing CANCEL
Voice over
levelTrigger contacts
10 Way IDC
Cable (To amplifier)
Chime
level
Alert/Evac
level
Switch 1
DIP Switches
Microphone
+-
Red Blk

www.altronics.com.au Redback® Proudly Made In Australia 13
Redback® A 4480B 8 In to 8 Out Audio Switcher
Output levels
Voice Chime Alert
O ver & Evac
24VDC In
(4A M205)
Lift/Chassis ZONE PLATES OR PRESET PLATE
Keyboard
INPUTS
SW2 SW1
8 7 6 5 4 3 2 1
SW5 ON OFF
1 Phantom Phantom
PowerOn Power O
2 Mic Level Line Level
Switches 3 & 4 Not Used
Vox
Level
Volume
Priority Input
L R
Vox
Level Trigger
To Paging Consoles/Preset Plate
3 4
1 2 3 4
ALERT - EVACUATION MODULE
1 2 3 4
L
R
SW3
EV
COM
CH1/
CAN
CH2
AL
21
3
1 - Shield
2 - Hot
3 - Cold
1 - Shield
2 - Hot
3 - Cold
21
3
SW3 Input 1 & 2 XLR
Phantom Power Settings
SW ON OFF
(1) Input 1 ON OFF
(2) Input 2 ON OFF
Triggers
OUTPUTS
8 7 6 5 43 2 1
EMERGENCY INPUT
DC Fuse
Earth Lift
+
-
24VDC In Power Fail
+_
Manufactured in Australia By
Altronic Distributors Pty. Ltd.
www.redbackaudio.com.au
BCD & DIP SWITCH SETTINGS
DIP SWITCH CHIME CONTACT
4 5 6 7 CH2 CH1/CANCEL
OFF OFF OFF OFF Pre Announce Ding Dong
ON OFF OFF OFF Pre Announce Repeating Bong
OFF ON OFF OFF PreAnnounce RepeatingBing
OFF OFF ON OFF PreAnnounce CANCEL
OFF OFF OFF ON DingDong Pre Announce
ON ON ON ON DingDong Repeating Bong
OFF ON ON ON Ding Dong Repeating Bing
ON OFF ON ON Ding Dong CANCEL
ON ON OFF ON Repeating Bong Pre Announce
ON ON ON OFF Repeating Bong Ding Dong
OFF OFF ON ON RepeatingBong Repeating Bing
OFF ON OFF ON Repeating Bong CANCEL
OFF ON ON OFF Repeating Bing Pre Announce
ON ON OFF OFF Repeating Bing Ding Dong
ON OFF ON OFF Repeating Bing Repeating Bong
ON OFF OFF ON Repeating Bing CANCEL
The Alert/Evacuation module has multiple chime options, a recordable
voice-over message and adjustable alert to evacuation tone switch-over times.
These options are selectable inside the unit, via the BCD rotary switch and
DIP switches located on the alert/evacuation module (refer to below settings).
ON OFF
Momentary Alert
& Evac operation
Latched Alert
& Evac operation
1
2
3
4
Voice-over
message ON
Voice-over
message OFF
Not Used Not Used
Mic recording
enabled
Mic recording
disabled
DIP
SW
1 2 3 4
SW5
1 2
(Maximum 500mA per output)
8 7 6 5 4 3
1
SW4
(Not Used)
16GB
Maximum
Micro SD Card
2
1 2 3 41 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
Aux Input Sensitivity
DIP Switch Settings
SW1 ON OFF
(1) Input 1 0.3V 0.7V
(2) Input 2 0.3V 0.7V
(3) Input 3 0.3V 0.7V
(4) Input 4 0.3V 0.7V
SW2 ON OFF
(1) Input 5 0.3V 0.7V
(2) Input 6 0.3V 0.7V
(3) Input 7 0.3V 0.7V
(4) Input 8 0.3V 0.7V
2 1
3
21
3
2 1
3
2 1
3
21
3
21
3
21
3
21
3
21
3
21
3
21
3
FM
101. 10:30 PM
REDBACK
DVD
REDBACK
Audio
Analog Out
L
R
Audio
Analog Out
L
R
Setup Guide
1 - Shield
2 - Hot
3 - Cold
21
3
OUTPUTS
8 7 6 5 43 2 1
Output
Voice Chime Aler t
Over & Evac
Optional
Settings
SW4
(Not Used)
1 2 3 4
ZONE PLATESOR PRESE T PLATES
INPUTS
SW1
SW2
8 7 6 5 4 3 2 1 Expansion IN Expansion OUT
SW5 ON OFF
1 Phantom Phantom
Power On Power O
2 Mic Level Line Level
Switches 3 & 4 Not Used
Vox
Level
Volume
Priority Input
L R
Vox
Level Trigger
Paging Consoles / Preset Plates
2 1
1 2 3 4
Input 1 & 2 XLR
Aux Input Sensitivity
DIP Switch Settings
SW1 ON OFF
(1) Input 1 0.3V 0.7V
(2) Input 2 0.3V 0.7V
(3) Input 3 0.3V 0.7V
(4) Input 4 0.3V 0.7V
SW2 ON OFF
(1) Input 5 0.3V 0.7V
(2) Input 6 0.3V 0.7V
(3) Input 7 0.3V 0.7V
(4) Input 8 0.3V 0.7V
ALERT - EVACUATION MODULE
1 2 3 4
L
R
SW3
EVAC
COM
CAN
CHIME
ALERT
SW ON OFF
Phantom Power
(1) Input 1 ON OFF
(2) Input 2 ON OFF
(3) Not Used
(4) Not Used
21
3
1 - Shield
2 - Hot
3 - Cold
1 - Shield
2 - Hot
3 - Cold
21
3
Dip Switch 3 Settings
Triggers
Levels
OUTPUTS
8 7 6 5 43 2 1
EMERGENCY INPUT
8 6 47 53
2
1
SW5
24VDC In
(4A M205)
Lift/Chassis Keyboard
DC Fuse
Ear th Lift 24VDC In Fault Out
+_
+
-
2 1
3
2 1
3
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
21
3
21
3
21
3
21
3
21
3
21
3
21
3
21
3
21
3
Manufactured in Australia By
Altronic Distributors Pty. Ltd.
www.altronics.com.au
21
3
21
3
21
3
21
3
21
3
21
3
21
3
21
3
POWER
REDBACK
A 4270 125W
PublicAddress Amplie
PHASE5
AMPLIFIER 1
(MAIN BAR)
LINE IN
POWER
REDBACK
A 4270 125W
PublicAddress Amplie
PHASE5
AMPLIFIER 2
(BEER GARDEN)
LINE IN
POWER
REDBACK
A 4270 125W
PublicAddress Amplie
PHASE5
AMPLIFIER 3
(RESTAURANT)
LINE IN
POWER
REDBACK
A 4270 125W
PublicAddress Amplie
PHASE5
AMPLIFIER 4
(KITCHEN)
LINE IN
Fig 2.2a
2.2 CONNECTING AUDIO SOURCES
Begin by connecting the audio sources. (see Fig 2.2a).
1 - Use a dual RCA lead to connect the INPUT 1 on the A 4480B to the audio output sockets of the source eg: tuner.
2 - Use a dual RCA lead to connect the INPUT 2 on the A 4480B to the audio output sockets of the source eg: DVD player.
If more audio sources are required, connect them to inputs 3 -8 on the A 4480B.
2.3 CONNECTING OUTPUTS
The output sources are next to be connected. (see Fig 2.3A)
1 - Use a balanced XLR lead to connect OUTPUT 1 on the A 4480B to the line input socket of the zone 1
amplier. In this example, zone 1 is labelled as “main bar”.
2 - Use a balanced XLR lead to connect OUTPUT 2 on the A 4480B to the line input socket of the zone 2
amplier. In this example, zone 1 is labelled as “beer garden”.
3 - Use a balanced XLR lead to connect OUTPUT 3 on the A 4480B to the line input socket of the zone 3
amplier. In this example, zone 1 is labelled as “restaurant”.
4 - Use a balanced XLR lead to connect OUTPUT 4 on the A 4480B to the line input socket of the zone 4
amplier. In this example, zone 1 is labelled as “kitchen”.
If more output zones are
required, connect them to
outputs 5 to 8 on the rear of
the A 4480B.
Fig 2.3A

www.altronics.com.auRedback® Proudly Made In Australia14
Redback® A 4480B 8 In to 8 Out Audio Switcher
Output levels
Voice Chime Alert
Over & Evac
24VDC In
(4A M205)
Lift/Chassis ZONE PLATES OR PRESET PLATE
Keyboard
INPUTS
SW2 SW1
8 7 6 5 4 3 2 1
SW5 ON OFF
1 Phantom Phantom
Power On Power O
2 Mic Level Line Level
Switches 3 & 4 Not Used
Vox
Level
Volume
Priority Input
L R
Vox
Level Trigger
To Paging Consoles/Preset Plate
3 4
1 2 3 4
ALERT - EVACUATION MODULE
1 2 3 4
L
R
SW3
EV
COM
CH1/
CAN
CH2
AL
21
3
1 - Shield
2 - Hot
3 - Cold
1 - Shield
2 - Hot
3 - Cold
21
3
SW3 Input 1 & 2 XLR
Phantom Power Settings
SW ON OFF
(1) Input 1 ON OFF
(2) Input 2 ON OFF
Triggers
OUTPUTS
8 7 6 5 43 2 1
EMERGENCY INPUT
DC Fuse
Earth Lift
+
-
24VDC In Power Fail
+_
Manufactured in Australia By
Altronic Distributors Pty. Ltd.
www.redbackaudio.com.au
BCD & DIP SWITCH SETTINGS
DIP SWITCH CHIME CONTACT
4 5 6 7 CH2 CH1/CANCEL
OFF OFF OFF OFF Pre Announce Ding Dong
ON OFF OFF OFF Pre Announce Repeating Bong
OFF ON OFF OFF Pre Announce Repeating Bing
OFF OFF ON OFF Pre Announce CANCEL
OFF OFF OFF ON DingDong Pre Announce
ON ON ON ON Ding Dong Repeating Bong
OFF ON ON ON Ding Dong Repeating Bing
ON OFF ON ON DingDong CANCEL
ON ON OFF ON Repeating Bong Pre Announce
ON ON ON OFF Repeating Bong Ding Dong
OFF OFF ON ON Repeating Bong Repeating Bing
OFF ON OFF ON Repeating Bong CANCEL
OFF ON ON OFF Repeating Bing Pre Announce
ON ON OFF OFF Repeating Bing Ding Dong
ON OFF ON OFF Repeating Bing Repeating Bong
ON OFF OFF ON Repeating Bing CANCEL
The Alert/Evacuation module has multiple chime options, a recordable
voice-over message and adjustable alert to evacuation tone switch-over times.
These options are selectable inside the unit, via the BCD rotary switch and
DIP switches located on the alert/evacuation module (refer to below settings).
ON OFF
Momentary Alert
& Evac operation
Latched Alert
& Evac operation
1
2
3
4
Voice-over
message ON
Voice-over
message OFF
Not Used Not Used
Mic recording
enabled
Mic recording
disabled
DIP
SW
1 2 3 4
SW5
1 2
(Maximum 500mA per output)
8 7 6 5 4 3
1
SW4
(Not Used)
16GB
Maximum
Micro SD Card
2
1 2 3 41 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
Aux Input Sensitivity
DIP Switch Settings
SW1 ON OFF
(1) Input 1 0.3V 0.7V
(2) Input 2 0.3V 0.7V
(3) Input 3 0.3V 0.7V
(4) Input 4 0.3V 0.7V
SW2 ON OFF
(1) Input 5 0.3V 0.7V
(2) Input 6 0.3V 0.7V
(3) Input 7 0.3V 0.7V
(4) Input 8 0.3V 0.7V
2 1
3
21
3
2 1
3
2 1
3
21
3
21
3
21
3
21
3
21
3
21
3
21
3
24V DC 4A POWER SUPPLY
(BACKUP SUPPLY)
M 8973 24V DC 5A POWER SUPPLY
(PLUGPACK SUPPLIED)
Setup Guide
2.4 CONNECTING POWER
Next, connect power to the unit. (see Fig 2.4A)
The A 4480B can be powered from either a 24V DC rated source or mains rated 220-240V AC @ 50Hz.
24V DC can be supplied via a 2 way pluggable terminal. The supply would need to be able to deliver a continuous 24V DC
@ 2A. It is not recommended that the unit is continually powered in this manner. Rather the unit should be run of 220-
240V AC via the supplied 3 pin mains lead. The 24V DC input should be connected to a backup supply which switches on
in the event of mains power failure.
Fig 2.4A
2.5 CONFIGURING THE INPUTS TO OUTPUTS/ZONES
Once the unit is switched on the title screen with the software version will momentarily appear. The unit will then go into
a self check mode and search for any externally connected wall plates & paging consoles. Once the check is complete, the
main screen appears. Before commencing any programming, ensure the A 4480B is unlocked. To unlock, press “conrm”
and “cancel” buttons at the same time. The main screen is shown below in Fig 2.5A. The left side of the screen shows the
output zones 1-8, while the input sources are displayed on the top of the screen.
There is also a local audio and paging console option shown which will not be discussed in this quick setup section. This
will be covered in section 3.
Zone 1 refers to the zone 1 output which in our example was the main bar. Zone 2 refers to the beer garden and so on.
To make these easier to remember the zone names can be labelled via the use of a keyboard. However this will not be
covered here. Please refer to section 4.2 for more details.
The inputs work in the same manner. Input 1 in our example was the tuner and input 2 was the DVD player. Once again
these can also be labelled.
Fig 2.5A
ZONES
1. ZONE1
2. ZONE2
1 2 3 4 5 6 7 8 LOCAL PA
3. ZONE3
4. ZONE4
5. ZONE5
6. ZONE6
7. ZONE7
8. ZONE8
INPUT1
INPUT2
INPUT3
INPUT4
INPUT8
INPUT7
INPUT6
INPUT5
INPUTS
NO PRESETS ACTIVE
ON
ON
ON
ON
ON
ON
ON
ON

www.altronics.com.au Redback® Proudly Made In Australia 15
Redback® A 4480B 8 In to 8 Out Audio Switcher
Setup Guide
Keyboard
USB
Power
A 4480B
8 X 8 Audio Switcher
One
Two
Three
Four
Five
Six
Seven
Eight
Presets
PA on/o
Isolate
Help
Conrm
Cancel
Zone Selection Buttons
2.5.1 Routing audio to a zone
In our example we have 2 input sources and 4 zones. Selecting which zone receives which audio is very simple. The but-
tons on the left side of the LCD are the zone selection buttons.(see Fig 2.5B)
Fig 2.5B
For each zone there are 8 possible inputs to select and the off position which is the default. Each time one of these zone
selection buttons is pressed the next input source is routed to that particular zone. This is displayed on the screen by an
“*”. For instance in our example we want to route the DVD player (input 2) to the main bar (zone 1). Pressing zone se-
lection button 1 twice will move the “*” 2 positions from the off position to input 2, thus routing the DVD player to zone
1. Continuing to press the zone 1 button will move the “*” through all the inputs and then to the off position where the
“*” will no longer be visible.
By pressing the zone 2 selection button twice we can also route the DVD player to zone 2 and so on.
In the example below in Fig 2.5C (input 2) is routed to the main bar (zone 1), the beer garden (zone 2) and the restaurant
(zone 3). While the tuner (input 1) is routed to the kitchen (zone 4).
Fig 2.5C
ZONES
1. MAIN BAR
2. BEER GARDN
1 2 3 4 5 6 7 8 LOCAL PA
3. RESTAURANT
4. KITCHEN
5. ZONE5
6. ZONE6
7. ZONE7
8. ZONE8
*
*
*
*
TUNER
DVD
INPUT3
INPUT4
INPUT8
INPUT7
INPUT6
INPUT5
INPUTS
NO PRESETS ACTIVE
ON
ON
ON
ON
ON
ON
ON
ON

www.altronics.com.auRedback® Proudly Made In Australia16
Redback® A 4480B 8 In to 8 Out Audio Switcher
Signal
Emergency
Input
- +
Signal
Paging
Console
Signal Signal Signal Signal Signal Signal Signal Signal
Vol 1 Vol 2 Vol 3 Vol 4 Vol 5 Vol 6 Vol 7 Vol 8
Treble Treble Treble Treble Treble Treble Treble Treble
Bass Bass Bass Bass Bass Bass Bass Bass
Input 1 Input 2 Input 3 Input 4 Input 5 Input 6 Input 7 Input 8
- +
Zone 1 Zone 3 Zone 5 Zone 7
Zone 2 Zone 4 Zone 6 Zone 8
6
0
2
4
8
10
6
0
2
4
8
10
6
0
2
4
8
10
6
0
2
4
8
10
6
0
2
4
8
10
6
0
2
4
8
10
6
0
2
4
8
10
6
0
2
4
8
10
Setup Guide
2.6 ADJUSTING THE BASS, TREBLE AND INPUT VOLUMES
The system is now setup and ready to run.
The eight audio inputs all have separate bass, treble and volume controls, which are accessible on the front panel as
shown in Fig 2.6A. These tamper proof controls need to be adjusted with a screwdriver and set to your desired levels. A
signal present LED on each input provides instant feedback on the presence of audio from the input sources.
A perspex cover is provided which can be screwed on to the front panel which covers these bass,treble and input volume
pots to prevent tampering.
Fig 2.6A
Fig 2.7A
3.0 LOCAL AUDIO & PAGING CONSOLE OPTIONS
3.1 LOCAL AUDIO CONFIGURATION
The local audio conguration on the LCD indicates zones that have a local audio source connected via the A 4478 local
audio wall plate and the A 4491/92 zone wall plate (see section 5.2 and 5.4 for connection details).
If a local audio source is detected on a zone wall plate it is displayed on the LCD via an asterisk (*) in the local section. For
example, if zone 1 had an A 4478 tted with a live audio source connected, the system would detect the presence and
display an “*” in zone 1 as shown in g 3.1A. This automatically overrides any input source selected via the front panel.
2.7 ADJUSTING THE PAGING CONSOLE AND EMERGENCY INPUT VOLUMES
The emergency microphone and paging microphone controls are also shown in Fig 2.6a. The signal present leds indicate
when a signal is present and the volume adjusts the audio level from these two microphones.
2.8 ADJUSTING THE ZONE VOLUMES
The 8 zones also each have volume controls which can be set to the desired levels on the front of the unit (see Fig 2.7A)

www.altronics.com.au Redback® Proudly Made In Australia 17
Redback® A 4480B 8 In to 8 Out Audio Switcher
Setup Guide
3.2 PAGING CONSOLE CONFIGURATION
The paging console conguration on the LCD is used to display which zones are currently accessible by the paging con-
soles. All output zones can be programmed to be “locked out” from paging. If a zone is locked out, general paging will
not be routed to that zone. However emergency paging will override locked out zones and page all output zones. An
example may be an output zone such as a carpark. General paging may not be required but emergency paging would still
be required.
3.3 CONFIGURING THE PAGING CONSOLE LOCKOUT ON THE LCD
To congure a zone to be locked out from general paging return to the main screen, if not already there. Press the PA on/
off button. The screen shown below in g 3.1B should appear.
Fig 3.1A
Fig 3.1B
To lock a zone out from the general paging, use the buttons labelled 1-8 left of the LCD. Pressing button 1 will toggle
zone 1 ON or OFF depending on its current status. Pressing button 2 will toggle zone 2 ON or OFF etc. If the zone is left in
the OFF state, paging to this zone will now be locked out. Note: this lock out will be overriden by emergency paging.
3.4 CONFIGURING THE PROGRAM ISOLATE ON THE LCD
The A 4480B can be setup to isolate selected input sources from a zone, so these inputs are isolated or BLOCKED for that
zone. Examples might include music being isolated or blocked to the “car park” or common areas.
To isolate an input from a zone, press the isolate button on the front of the A 4480B. The screen shown in Fig3.1C will ap-
pear. In this example input 1 is isolated from zone1 as indicated by the letter “I”. To isolate the inputs use the buttons 1-8
on the left of the screen to select the zone and then continue to press the selected number to scroll through the inputs. A
circle on the screen indicates the cursor position. Once in position, press the isolate button and the cursor will change to
an “I”. The corresponding input is now isolated from that zone. Pressing the isolate button again will turn off the isolate.
ZONES
1. ZONE1
2. ZONE2
1 2 3 4 5 6 7 8 LOCAL PA
3. ZONE3
4. ZONE4
5. ZONE5
6. ZONE6
7. ZONE7
8. ZONE8
*
INPUT1
INPUT2
INPUT3
INPUT4
INPUT8
INPUT7
INPUT6
INPUT5
INPUTS
NO PRESETS ACTIVE
ON
ON
ON
ON
ON
ON
ON
ON
ZONES
1 ZONE1 (ON)
PA MIC TO ZONE SCREEN
Use 1 to 8 to turn ZONES ON or OFF
CONFIRM or CANCEL button will EXIT
1 ZONE2 (ON)
1 ZONE3 (ON)
1 ZONE4 (ON)
1 ZONE5 (ON)
1 ZONE6 (ON)
1 ZONE7 (ON)
1 ZONE8 (ON)
ZONES
1. ZONE1
2. ZONE2
1 2 3 4 5 6 7 8
3. ZONE3
4. ZONE4
5. ZONE5
6. ZONE6
7. ZONE7
8. ZONE8
INPUT1
INPUT2
INPUT3
INPUT4
INPUT8
INPUT7
INPUT6
INPUT5
INPUTS
I = ISOLATED (NO ACCESS)
ISOLATE
SCREEN
I
Fig 3.1C

www.altronics.com.auRedback® Proudly Made In Australia18
Redback® A 4480B 8 In to 8 Out Audio Switcher Setup Guide
4.0 EMERGENCY OVERRIDES & PRIORITIES
4.1 PRIORITIES
There are 5 levels of priority in the A 4480B.
Level 1 The emergency microphone is a hard wired microphone which connects to the 3 pin XLR connection as shown
in the full connection diagram. This has top priority and will override all other inputs. The gain of this microphone
is set by the screwdriver adjust controls on the front of the A 4480B. A signal presence LED indicates signal being
received from the microphone.
Level 2 The A 4481 paging console (optional) has an emergency paging function which will override all other inputs
except the emergency microphone. See section 5.1 for details. The gain of this microphone is set by the screw
driver adjust controls on the front of the A 4480B. A signal presence LED indicates signal being received from the
microphone.
The priority input operates on the same priority level as the A 4481 paging consoles. (See section 5.2 for details)
The priority input and the paging consoles work on a First In Best Dressed basis.
Level 3 The alert/evacuation tones provide the next level of priority and will override all inputs except the emergency
paging microphone, the paging consoles (if tted) when used in emergency paging mode and the priority input.
Level 4 The A 4481 paging console when operating in standard paging mode has the next level or priority and will over
ride all local zone inputs and line inputs.
Level 5 The A 4478 local input wallplate (optional) will override audio routed to the same zone the A 4478 is connected
to.
Input audio sources 1-8 have the lowest priority and will not override anything.
4.2 PRIORITY INPUT
The priority input can be triggered via a closing contact or a vox operated audio input. This makes it useful for applications
such as telephone paging or the playing of the ODE in RSL clubs when used in conjunction with a timer.
Fig 4.2A
The priority or All Call input operates on the same priority level as the A 4481 paging consoles. They all work on a First In Best
Dressed basis. This will over-ride all other inputs except the emergency microphone. The output level of the priority input
can be adjusted vis the trimpot on the rear of the A 4480B. The audio input has a trimpot adjustable vox input sensitivity.
Output levels
Voice Chime Alert
Over & Evac
24VDC In
(4A M205)
Lift/Chassis ZONE PLATES OR PRESET PLATE
Keyboard
INPUTS
SW2 SW1
8 7 6 5 4 3 2 1
SW5 ON OFF
1 Phantom Phantom
Power On Power O
2 Mic Level Line Level
Switches 3 & 4 Not Used
Vox
Level
Volume
Priority Input
L R
Vox
Level Trigger
To Paging Consoles/Preset Plate
3 4
1 2 3 4
ALERT - EVACUATION MODULE
1 2 3 4
L
R
SW3
EV
COM
CH1/
CAN
CH2
AL
21
3
1 - Shield
2 - Hot
3 - Cold
1 - Shield
2 - Hot
3 - Cold
21
3
SW3 Input 1 & 2 XLR
Phantom Power Settings
SW ON OFF
(1) Input 1 ON OFF
(2) Input 2 ON OFF
Triggers
OUTPUTS
8 7 6 5 43 2 1
EMERGENCY INPUT
DC Fuse
Earth Lift
+-
24VDC In Power Fail
+_
Manufactured in Australia By
Altronic Distributors Pty. Ltd.
www.redbackaudio.com.au
BCD & DIP SWITCH SETTINGS
DIP SWITCH CHIME CONTACT
4 5 6 7 CH2 CH1/CANCEL
OFF OFF OFF OFF Pre Announce Ding Dong
ON OFF OFF OFF Pre Announce Repeating Bong
OFF ON OFF OFF Pre Announce Repeating Bing
OFF OFF ON OFF Pre Announce CANCEL
OFF OFF OFF ON Ding Dong Pre Announce
ON ON ON ON Ding Dong Repeating Bong
OFF ON ON ON Ding Dong Repeating Bing
ON OFF ON ON Ding Dong CANCEL
ON ON OFF ON Repeating Bong Pre Announce
ON ON ON OFF Repeating Bong Ding Dong
OFF OFF ON ON Repeating Bong Repeating Bing
OFF ON OFF ON Repeating Bong CANCEL
OFF ON ON OFF Repeating Bing Pre Announce
ON ON OFF OFF Repeating Bing Ding Dong
ON OFF ON OFF Repeating Bing Repeating Bong
ON OFF OFF ON Repeating Bing CANCEL
The Alert/Evacuation module has multiple chime options, a recordable
voice-over message and adjustable alert to evacuation tone switch-over times.
These options are selectable inside the unit, via the BCD rotary switch and
DIP switches located on the alert/evacuation module (refer to below settings).
ON OFF
Momentary Alert
& Evac operation
Latched Alert
& Evac operation
1
2
3
4
Voice-over
message ON
Voice-over
message OFF
Not Used Not Used
Mic recording
enabled
Mic recording
disabled
DIP
SW
1 2 3 4
SW5
1 2
(Maximum 500mA per output)
8 7 6 5 4 3
1
SW4
(Not Used)
16GB
Maximum
Micro SD Card
2
1 2 3 41 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
Aux Input Sensitivity
DIP Switch Settings
SW1 ON OFF
(1) Input 1 0.3V 0.7V
(2) Input 2 0.3V 0.7V
(3) Input 3 0.3V 0.7V
(4) Input 4 0.3V 0.7V
SW2 ON OFF
(1) Input 5 0.3V 0.7V
(2) Input 6 0.3V 0.7V
(3) Input 7 0.3V 0.7V
(4) Input 8 0.3V 0.7V
2 1
3
21
3
2 1
3
2 1
3
21
3
21
3
21
3
21
3
21
3
21
3
21
3
Closing contact trigger.
Telephone Paging System

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Redback® A 4480B 8 In to 8 Out Audio Switcher
Setup Guide
4.3 LABELLING OF INPUT SOURCES, ZONES & PRESETS
The input audio sources and the output zones can all be labelled using a USB keyboard. Audio source examples might
include CD Player, Radio, etc. Output zone examples might include Beer Garden, Foyer, Conf. Room etc. A maximum of
ten characters is available for each label.
4.3.1 How to label input sources and zones via USB keyboard
Plug a standard USB keyboard into the USB socket on either the front or rear of the A 4480B. The keyboard will be auto-
matically detected and navigate the user to the label input screen.
There are 3 options available, labelling the input sources, labelling the output zones and labelling the presets. All labels
have a maximum of 10 characters consisting of the numbers 0-9 and the letters a-z. To use capital letters hold down the
shift key when typing.
To label the input sources
Press the letter “i” on the keyboard. This will navigate the user to the “label inputs screen”. Press the numbers 1-8 on
the keyboard to select the input to label. Type in the label required and press return. Press escape to exit back to the main
label input screen.
To label the output zones
Press the letter “z” on the keyboard. This will navigate the user to the “label zones screen”. Press the numbers 1-8 on the
keyboard to select the zone to label. Type in the label required and press return. Press escape to exit back to the main label
input screen.
To label the presets
Press the letter “p” on the keyboard. This will navigate the user to the “label presets screen”. Press the numbers 1-4 on
the keyboard to select the preset to label. Type in the label required and press return. Press escape to exit back to the main
label input screen.
Press escape on the keyboard or the conrm or cancel buttons on the front of the A 4480B to exit the labelling menu.
Once the label input screen is exited the unit will perform a system update. This will update all connected wall plates and
paging consoles with the new labels. Should you make a mistake or wish to re-label a source, zone or preset, repeat the
steps above. Once in the respective labelling screen, the original name may be overwritten.

www.altronics.com.auRedback® Proudly Made In Australia20
Redback® A 4480B 8 In to 8 Out Audio Switcher Connections
ZONE PLATESOR PRESE T PLATES
SW1 2
CAT5 cable
Max 300M
A 4493 Zone Selector Wallplates. Plate 1 must be connected to input 1. Plate 2 to input 2 etc. Zone plate ID number set by the user via the menu. Maximum of 1 zone plate per zone and a maximum of 8 plates per system.
A 4931 Local Mic/Line Input wallplate. (This is connected to the A 4493 zone selector plate to provide a local VOX operated mic or line input. Connection is via a CAT5e cable. Maximum of 1 per A 4493 plate)
CAT5 cable
Max 100M
CD
REDBACK
A 4476 Preset Wallplate (Can be connected to either paging console input or any zone plate input connector. Maximum of 1 preset plate per system)
CD
REDBACK
CD
REDBACK
CD
REDBACK
CD
REDBACK
CD
REDBACK
CD
REDBACK
CD
REDBACK
Evacuation Trigger
Alert Trigger
Chime Trigger
Cancel Trigger
Evacuation tones can be triggered by closing contacts such as switches, from Fire Indicator Boards or the like.
24V DC 2A POWER SUPPLY
USB KEYBOARD
(MUST BE PS2 COMPATIBLE
SUCH AS ALTRONICS: D2111)
USB KEYBOARD FOR PROGRAMMING THE
LABELS FOR THE TFT DISPLAY
(CAN ALSO BE USED TO PROGRAM
A 4481 PAGING CONSOLES)
Priority Trigger
Telephone Paging
System
CAT5 cable
Max 300M
CAT5 cable
Max 300M
Local Emergency Paging Microphone
A 4481 Paging consoles. A maximum of 8 paging consoles can be connected in a Loop in/loop out conguration. A maximum of 2 consoles per output port on the A 4480B. Console ID set by dip switches on rear of console.
CAT5 cable
Max 300M
Output levels
Voice Chime Alert Over & Evac
24VDC In
(4A M205)
Lift/Chassis ZONE PLATES OR PRESET PLATE
Keyboard
INPUTS
SW2 SW1
8 7 6 5 4 3 2 1
SW5 ON OFF 1 Phantom Phantom Power On Power O 2 Mic Level Line Level Switches 3 & 4 Not Used
Vox
Level
Volume
Priority Input
L R
Vox
Level Trigger
To PagingConsoles/Preset Plate
3 4
1 2 3 4
ALERT - EVACUATION MODULE
1 2 3 4
L
R
SW3
EV
COM
CH1/
CAN
CH2
AL
21
3
1 - Shield 2 - Hot 3 - Cold
1 - Shield 2 - Hot
3 - Cold
21
3
SW3 Input 1 & 2 XLR Phantom Power Settings
SW ON OFF (1) Input 1 ON OFF (2) Input 2 ON OFF
Triggers
OUTPUTS
8 7 6 5 43 2 1
EMERGENCY INPUT
DC Fuse
Earth Lift
+
-
24VDC In Power Fail
+_
Manufactured in Australia By
Altronic Distributors Pty. Ltd.
www.redbackaudio.com.au
BCD & DIP SWITCH SETTINGS
DIP SWITCH CHIME CONTACT
4 5 6 7 CH2 CH1/CANCEL
OFF OFF OFF OFF Pre Announce Ding Dong
ON OFF OFF OFF Pre Announce Repeating Bong
OFF ON OFF OFF Pre Announce Repeating Bing
OFF OFF ON OFF Pre Announce CANCEL OFF OFF OFF ON DingDong Pre Announce
ON ON ON ON DingDong RepeatingBong
OFF ON ON ON Ding Dong Repeating Bing
ON OFF ON ON Ding Dong CANCEL
ON ON OFF ON Repeating Bong Pre Announce
ON ON ON OFF Repeating Bong Ding Dong
OFF OFF ON ON RepeatingBong Repeating Bing OFF ON OFF ON Repeating Bong CANCEL OFF ON ON OFF Repeating Bing Pre Announce
ON ON OFF OFF Repeating Bing Ding Dong
ON OFF ON OFF Repeating Bing Repeating Bong
ON OFF OFF ON Repeating Bing CANCEL
The Alert/Evacuation module has multiple chime options, a recordable voice-over message and adjustable alert to evacuation tone switch-over times. These options are selectable inside the unit, via the BCD rotary switch and DIP switches located on the alert/evacuation module (refer to below settings).
ON OFF
Momentary Alert & Evac operation
Latched Alert & Evac operation
1 2 3 4
Voice-over message ON
Voice-over message OFF
Not Used NotUsed
Mic recording enabled
Mic recording disabled
DIP SW
1 2 3 4
SW5
1 2
(Maximum 500mA per output)
8 7 6 5 4 3
1
SW4
(Not Used)
16GB
Maximum
Micro SD Card
2
1 2 3 41 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
Aux Input Sensitivity DIP Switch Settings SW1 ON OFF (1) Input 1 0.3V 0.7V (2) Input 2 0.3V 0.7V (3) Input 3 0.3V 0.7V (4) Input 4 0.3V 0.7V SW2 ON OFF (1) Input 5 0.3V 0.7V (2) Input 6 0.3V 0.7V (3) Input 7 0.3V 0.7V (4) Input 8 0.3V 0.7V
2 1
3
21
3
2 1
3
2 1
3
21
3
21
3
21
3
21
3
21
3
21
3
21
3
PROGRAM
PRESET
CONFIRM
A4476
Store Recall All Call
Emergency
(All Zones)
A 4481 Communicator
System Busy
Page
Lock On
REDBACK A 4481
8 Zone Communicator
Version 1.1
Cancel
Store Recall All Call
Emergency
(All Zones)
A 4481 Communicator
System Busy
Page
Lock On
REDBACK A 4481
8 Zone Communicator
Version 1.1
Cancel