Altronics A 4488 Betriebsanleitung - Seite 7
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Seite druckenUnderstanding the BGM (Background Music) and Paging Relationship with multiple paging consoles
The background music source is connected to the rear of the paging console as shown in Fig 7. If two paging consoles
are in use, a background music source could be connected to either console, operating on a First In, First serve basis. But
Altronics does not recommended using more than one BGM input.
Unfortunately when the BGM is active on one paging console there is no visual indication of this fact on the other
console. So having two BGM sources would become confusing.
When the BGM is active on Paging console 1 it can be over-ridden by general paging on Paging console 2 and vise versa.
If BGM is active on paging console 1 and paging is to be initiated by this same console then the PTT switch will need to be
moved to the "Page" position. Once the PTT switch is moved off the "Lock On" position, then the BGM stops.
Fig 8a and 8b illustrate a typical example of BGM on one console and paging on the other console.
In Fig 8a paging console 1 has zones 1 & 2 selected and the PTT switch moved to the "Lock On" position. Background
music is being fed to zones 1 & 2. The LED's on zones 1 & 2 are illuminated indicating which zones have background
music. Paging console 2 has the PTT switch in the OFF position which means its not active and has no visual indication that
the BGM is active to zones 1 & 2.
In Fig 8b Paging console 2 has the PTT switch in the "Page" position and zones 3 and 4 are now active for paging.
Paging console 1 still has the PTT switch in the "Lock On" position. The LED's on zones 1 & 2 stay illuminated indicating
which zones have background music. But since console 2 is now paging, console 1 has been over-ridden and the paging
audio is now sent to zones 3 & 4. The system busy led is illuminated on console 1 indicating the system is busy and that
console 1 has now been "Locked Out" until console 2 finishes paging. The background music has been disconnected.
Once console 2 finishes paging the BGM will be re-stored to zones 1 and 2.
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Paging console 1 has zones 1 & 2
selected and the PTT switch
moved to the "Lock On" position.
Background music is fed to zones 1 &2.
The LED's on zones 1 &2 are illuminated
indicating which zones have
background music.
Paging Console 1
A 4488
4 Zone Communicator
Lock On
Page
All Call
Cancel
System Busy
Paging console 1 still has
the PTT switch in the "Lock On" position.
The LED's on zones 1 & 2 stay illuminated
indicating which zones have background
music. But since console 2 is paging the
system busy led is illuminated and the
background music has been disconnected.
Paging Console 1
A 4488
4 Zone Communicator
Lock On
Page
All Call
Cancel
System Busy
Paging console 2 has the
PTT switch in the OFF position
and has no visual indication that
the BGM is active to zones 1 & 2.
Paging Console 2
A 4488
4 Zone Communicator
Lock On
Page
All Call
Cancel
System Busy
Paging console 2 has the
PTT switch in the "Page" position
and zones 3 and 4 are active.
Console 1 has now been over-ridden
and the paging audio is now sent
to zones 3 & 4.
Paging Console 2
A 4488
4 Zone Communicator
Lock On
Page
All Call
Cancel
System Busy
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Fig 8a
Fig 8b
7