User Manual

www.redbackaudio.com.au Redback® Proudly Made In Australia 9
Redback® A 4270/80 Four Zone Paging PA Amplier
1 2 3
6
7
24VDC In
Volume
Mic
Chime
Volume
1 2 3 4
1
2
PA System Chime On
SW
PA System Chime Off
Internal Chime On Internal Chime Off
On
Off
DIP Switches 1-2 Settings
ON
1 2 3 4
BGM
Volume
BGM
Input
4
5
2 3
4
DIP Switches 2 - 4
Set the Paging
Off Off Off
Console ID
ID
On Off Off
On On Off
Off On Off
Off Off On
On Off On
On On On
Off On On
7
8
1
2
3
4
5
6
11.0 A 4488 CONNECTIONS
Figure 8 shows the layout of the rear panel.
Fig 8
1 24V DC connector
2.1mm DC jack (centre pin positive). A 24V DC plugpack may be required if the A 4488 is run more than 100m
from the amplier.
2 RJ45 connector
For connection back to the A 4270 or A 4280. Either port can be used.
3 DIP switch options
These switches set the pre-announcement chime and set the ID number.
4 BGM (Background Music) Input
The background music can be connected via a 3.5mm Stereo Jack.
5 BGM volume
Use this volume to adjust the background music level.
6 Chime volume
Use this volume to adjust the chime level.
7 Microphone volume
Use this volume to adjust the microphone level.
12.0 A 4488 DIP SWITCH SETTINGS
DIP switch 1 sets the pre-announcement chime on or off.
DIP switches 2-4 set the paging console ID number.
NOTE: The ID must be set to either ID1 or ID2 when using the
A 4488 with the A 4270 or A 4280 amplier.
IMPORTANT NOTE:
Ensure power is switched off when adjusting DIP switches.
New settings will be effective when power is switched back on.
Fig 9
Fig 9