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Front Keypad Controls
Power On / Off
Press and hold the “1” key for several seconds on the front of the intercom to power TheCOM on
and off.
Volume Controls
The S4S comes equipped with four independent volume controls. Press the number that you
would like to increase or decrease the volume then once the red LED lights up next to the
number simply press the “+” or “–” key to set the volume to your preference. Note that wherever
the red LED is lite up next to has control of the ± keys.
VOX
TheCOM is equipped with a noise reduction system that will eliminate amplification of
background engine noise. The threshold at which this discriminates between background noise
and your voice can be adjusted with the control on the front panel marked VOX. Increasing this
will require a higher speech level to activate the microphone. VOX can be disabled if not
required by clicking the “-” key all the way to the bottom setting that will have an audible beep
at the bottom. If the VOX is at the bottom the mic will remain on and the music or media coming
into the system will remain playing even when you talk into the mic.
The VOX while on will mute the media coming into TheCOM. The VOX cut out for media has a
1 second delay by design so if the mic opens by accident by wind or other noises and then
quickly shuts again the music does not cut out for a better listening experience.
Press and
hold #1 for
power
Shared
up(+)/down(-)
controls
VOX
sensitivity
control
LED light indicator shows the
button that has control of the
up(+)/down(-) buttons
