TEMA TELECOMUNICAZIONI SRL
Audio Amplifier AD301R
MAS-AD301R-REV01EN
Page 11 of 12
7.3. Basic connection with use of the AA-10/PA and AA-11/PA interfaces to send
announcement from telephone/PBX
An interesting application can be the use of the TEMA
AA-10/PA
or
AA-11/PA
interfaces as the
audio source, allowing to interface a telephone system with the paging sound system.
The simplest case is to connect an analog BCA telephone to the
AA-10/PA
system and at his
audio output is connected to
AD301R
. The operator can then spread warning messages in the
served area by the amplification system simply by lifting the phone handset and starting to speak.
Upon re-hooking, the message spreading will be released.
If a PABX is available,
AA-10/PA
must be connected to an analog trunk. In this case, the interface
will make it possible for all internal appropriately enabled users of the PBX, to spread a warning
message by engaging the line where
AA-10/PA
is connected and starting to speak. Upon re-
hooking, the message will be released.
If an internal analog extension of the PABX will be used instead of the analog trunk, the
AA-11/PA
interface must be used. The operator can then broadcast warning messages in the area served by
the amplification system simply by calling the extension where the
AA-11/PA
interface is
connected and starting to speak.
AA-11/PA
does not generate any warning tone at the beginning
of the message output. When the handset is hung up, the message spread will be terminated after
the acknowledgment by
AA-11/PA
of the PBX reorder tone. The operator can also decide to
immediately terminate the call to
AA-11/PA
and then the announcement by dialing a specific
DTMF command.
See the following diagram showing a typical
AD301R
connection with
AA-10/PA
connected to a
PABX analog trunk:
