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ENGLISH
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AUX INPUT (A and B) TREBLE and BASS controls.
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AUX INPUT A with dual RCA connector.
The two channels of the stereo source connected to the AUX INPUT A are summed internally (to get
a mono signal); the same for the stereo source connected to the AUX INPUT B.
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AUX INPUT A GAIN control.
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AUX INPUT B with dual RCA connector.
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AUX INPUT B GAIN control.
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PRE OUT audio output (with RCA connector) that sends the same signal routed to the internal
amplifier (signal that can be either a single source with priority or the mix of all the channels 1,
2 and the selected AUX INPUT)..
Use PRE OUT to connect additional external amplifiers.
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MUSIC ON HOLD audio output (with RCA connector) that sends a mono signal of the source
connected to the AUX INPUT A.
The MUSIC ON HOLD output is not affected by any volume control nor selector and (if an external
music source has been connected to the AUX INPUT A) can be used for the connection to a
telephone system (in order to have the ‘music on hold’ function).
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5 dip-switches for settings:
1
ON – CHIME OFF
ON: the chime is enabled and played
once immediately after a priority command
activation.
CHIME OFF: the chime is disabled.
2
DUAL – SINGLE
TONE
DUAL: 2 tone chime.
SINGLE TONE: single tone chime.
3
MIX – GR.
PRIORITY
MIX: the priority function is disabled.
All inputs are mixed and sent to the amplifier
(even if a priority command is in progress).
GRADUATED PRIORITY:
graduated priority mode
(read the ‘Operation’ section).
4
OFF – HI PASS
OFF: the audio high pass filters of the inputs
1 and 2 are not inserted
(flat frequency response).
HI PASS: the audio high pass filters
of the inputs 1 and 2 are inserted.
5
VOX – OFF
VOX: the channel 1 VOX function is on
(the channel 1 is automatically open
when a signal is detected on its input).
OFF: the channel 1 VOX
function is off.