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4
CONNECTIONS
POWER SUPPLY
The Maestro can be powered by the
power supply unit 9V DC or by an ex-
ternal power supply 9V to 24V DC (not
included).
It can also be powered by USB cable
during its connection to a comput-
er, but only temporarily, in order to
change the default configuration.
PHONE LINE
The phone line is connected to an analog line from the telephone network, either
directly or through a telephone system (PBX).
You can dial its number to make an announcement from any phone. To end the
announcement and disconnect the communication, you can remain silent (~2s) or
hang up the phone, which will broadcast 1 or 2 busy tones through the PA system.
OUTPUT
The Maestro has 2 output relays which
can be connected to command exter-
nal actions.
The first relay (R1) is activated during
message broadcasting and the second
relay (R2) during phone announce-
ment. These outputs are usually con-
nected to the PA system in order to mix
audio inputs.
AUDIO
The balanced audio output (H / C) is
connected to a PA system auxiliary or
line input with optional shield (G).
The audio connection guide, available
on the µSD card, gives further informa-
tion.
INPUT
The Maestro has 6 input contacts,
which can be connected by using one
of the common pins (G).
The triggering of an input broadcasts
the corresponding message (cf. §6).
Message 1 has priority over mess. 2,
which has priority over mess. 3 ...
A higher priority message ends any
broadcast in progress.
5
OPERATING ELEMENTS
LEDS
The power LED (green) lights up when
the Maestro is powered on.
The information LED (orange) lights
up during message broadcasting or an
announcement over the phone.
It blinks briefly at product startup and
flashes in cadenced manner during
USB connection.
The warning LED (red) lights up if the
µSD card is pulled off or if it contains
an error in its configuration.
MAESTRO
MICRO SD CARD
The µSD card holds the pre-recorded
messages (MP3 or WAV files) and the
product configuration files (cf. §6).
If the card is pulled off, the red LED
indicates an error and the Maestro al-
lows only an announcement over the
phone.
A custom µSD card, or one with higher
capacity, can replace the one delivered
with the product.
An error is indicated in case of any
problem in the configuration file.
USB MINI CONNECTOR
The USB mini connector is used to con-
nect the Maestro to a computer in or-
der to change the pre-recorded mes-
sages or the configuration.
The Maestro can be powered by USB
cable during its connection to a com-
puter, but only temporarily, in order to
change the default configuration.
TEST
MES.
VOI.
TEST BUTTON
A brief push on the test button trig-
gers the broadcasting of a pre-record-
ed message in order to check that the
Maestro is working properly.
VOLUMES
The Maestro has 2 volumes settings
for message (MES.) and voice during a
phone announcement (VOI.).
These manage to regulate the audio
output level.
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