2N Lift8 v1.5.2 - Manual (Page 51)

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2N TELEKOMUNIKACE a.s., www.2n.cz
®
Handset Connection
Order an additional handset for your Audio Unit. The handset is delivered including a
cable with telephone end pieces.
Testing
Connect a handset and push and hold for over 2 s to display the voice menu for
the function test. If the handset does not work, the voice menu will be played from the
Audio Unit speaker.
Volume Configuration
Open the protective door on the Audio Unit and adjust the volume . using the trimmer
Warning
Connection to different, e.g. higher-voltage, cables leads to damage or
destruction of the Audio Unit.
Maintain polarity while connecting the Audio Unit to avoid Audio Unit error
.
Caution
The Audio Unit is powered via a 2-wire bus. Disconnection of these wires
results in the Audio Unit switch-off.
Caution
If the handset is not connected, the Audio Unit works in the HandsFree
mode.
A handset of a type other than that supplied by the manufacturer may not
work.
Caution
Use the trimmer to set the best acoustic properties eliminating feedback.
Volume configuration only works in the HandsFree mode.