User Manual

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Redback® A 4270/80 Four Zone Paging PA Amplier
13.0 A 4488 GENERAL PAGING
To page to a zone select the desired zone/s by pressing the buttons 1- 4 or by pressing the “All Call” button if all zones
are desired. Make sure the switch is in the centre position before selecting the zones. The selected zones’ LED’s will illumi-
nate to indicate they have been pressed. Move the “Push to talk” switch down to the “Page” position and speak into the
microphone. Release the PTT switch when nished. The selected zones’ LED’s will ash for a few seconds after paging has
nished. While these LED’s are still ashing paging can be directed to these zones again by simply moving the PTT switch
back to the “Page” position.
If two paging consoles are connected to the system one console will be “Locked Out” when the other is in use.
Paging to the selected zones will override the background music to those zones, if the BGM was selected to be active by
the amplier front panel switches.
Note: If the VOX1 switch is set to ON, input 1 will override the A 4488 paging consoles.
14.0 BACKGROUND MUSIC (REAR OF A 4488 PAGING CONSOLE)
Background music to the four output zones is primarily fed from the audio output of the amplier and selected by the
front panel switches. But the background music can also be fed from the rear of the A 4488 paging consoles.
This second method involves connecting an audio source (such as a mobile phone, tablet etc.) to the 3.5mm input jack on
the rear of the paging microphone as shown in Figure 10. This provides a local source of background music.
To activate the background music, rst make sure the Push to Talk (PTT) switch is in the centre position and then select
the zones to receive the background music. The selected zones LED indicators will ash to signify they have been selected.
Next move the PTT switch to the up position which is lablelled “Lock On”. While the switch is in this position and only this
position will the background music will be piped out to the zones selected.
The volume is adjusted by the BGM volume trimpot on the rear of the microphone.
If the PTT switch is moved to the “Page” position the background music will stop and paging will be active.
If the PTT switch is in the centre position the BGM and paging are not active.
If background music is required again to the same zones as previously selected, then all thats needed to initiate it again is
to move the PTT switch back to the “Lock On” position.
If the BGM is to be piped to different zones then it is only a matter of selecting the new zones, and then moving the PTT
switch to the “Lock On” position.
Fig 10
TO ACTIVATE THE BGM
MOVE THE SWITCH TO
THE “LOCK ON” POSITION
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
REAR OF A 4488
ADJUST THE BACKGROUND
MUSIC VOLUME
BACKGROUND
MUSIC SOURCE
Connecting an audio source to the BGM input
4 Zone Communicator
System Busy
Page
BGM
All Call Cancel
A 4488