RABBIT is an audio
switcher with two inputs and one audio output
It’s available in two versions: studio and
remote
Studio: stereo version (left and right inputs
and XLR connectors): it allows the switching –
on the output - between one main input and a secondary
one. This application is ideal for switching in
case of:
- failure of the main direction board or of the
automation system’s PCs by switching on an
emergency output and thus managing the opto coupled
commands.
- general management and commutations of networks
and local splitters
- management of the advertising splitters when an
automation system is operating
Remote: in the MPX version (BNC connectors for
the main input and output, BNC and XLR connectors
for the secondary input) it will allow the switching
between different sources (i.e. between the satellite
reception and a terrestrial radio link).
RABBIT can do the following functions thanks
to very simple configurations and activations via
keyboard + display at the moment of the installation:
MPX version: the switching between
main and secondary input which can be planned to
happen in case of difference between the PI received
in the RDS sub-carrier and the one (option) set
in the equipment or/and in case of lack of audio
or/and of RDS sub-carrier or/and of over-modulation
of the main input’s audio. The switching between
main and secondary input (in case of lack of signal
even in the setting of just one of its aspects)
or between secondary and main (when there is signal
in the main input with all its settings) can be
set as immediate or with some minute’s delay.
Stereo version: the swithcing
between main and secondary input can be done even
when there is a remote control. This configuration
is ideal if associated with automation systems for
the management of the advertising splitters.
Automatic levelling of the secondary input in
respect to the main one in order to avoid unpleasant
and awkard differences of sound between the two
inputs.
Addition of the main input’s pilot 19 KHz
and RDS to the secondary input’s audio signal.
Rabbit can manage
remote controls usually closed or open, stable
or impulsive, beside providing the possibility
of being powered by an external battery.
It is as well provided with a passive by-pass
system (Relè) which can bypass the
main input going to the output in case of
widespread failure of the system.
The function that makes RABBIT unique is the
GSM option that allows the management, thanks
to simple SMS, either of simple messages concerning
the system’s status (i.e.: Power supply
OK) or the system’s failures caused
by anomalies (i.e.: lack of the Audio Main,
over-modulation of Audio Main, incoherent
PI, lack of RDS, lack of pilot, Sat decoder
alarm, lack of network power supply).
Thanks to the GSM option the alarm messages
can be displayed through SMS sent to different
mobile’s numbers.
The SMS’s delivery and their text can
be planned with an external software.
Thanks to the GSM option RABBIT
can receive SMS messages that can force the switching
between main and secondary input or generate the
mute on the output in order to allow possible
remote field’s measurement without sending
human personnel on site.
Thanks to the GSM option RABBIT
can send SMS relative to the opto isolated auxiliary
inputs available in order to check external events
(i.e.: door opening or temperature’s threshold
exceeded).
Thanks to the GSM option RABBIT
can receive messages that could activate two auxiliary
opto-isolated outputs available in order to check
events (i.e.: switching of FM transmitters or
resetting of any kind of equipment).
Thanks to the RDS option RABBIT
can receive remote controls (switching between
main and secondary input) sent through RDS signal
generated by AEV’s RDS 4500.
Audio
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