Axis 2N LiftIP User Manual page 22

Off-Panel Microphone Mounting
By default, the microphone is mounted directly on the
the drawing for its position). If required, the microphone can be supplied with a cable
mounted on a 25mm diameter holder with self-adhesive foil. This allows you to mount
the microphone behind any lift button panel hole of the minimum diameter of 3 mm or
a group of holes of the same total area. Switching to an external microphone is
automatic (its connection is detected). The minimum centre-to-centre distance
between the speaker and microphone is 90 mm
acoustic feedback. A longer distance does not matter.
Warning
Always make sure that the microphone hole is sealed properly against
noise from the gap between the lift cabin wall and mounting panel. The
microphone should record sounds from the cabin instead of noise from
the shaft or the space behind the panel where
Off-Panel Speaker Mounting
By default, the speaker is mounted on a panel and equipped with a 1m cable. You can
also remove the speaker from its panel bed and place it separately. By default, the
speaker is mounted on a panel and equipped with a 1m cable for additional amplifier
installation. You can also remove the speaker from its panel bed and place it
separately. In that case, respect the electric safety precautions, see below!
Caution
Installing the speaker separately, make sure that the grid does not
surpass the speaker dimensions in any case to eliminate the acoustic
fault between the speaker front and back sides!
2N TELEKOMUNIKACE a.s., www.2n.cz
®
2N LiftIP printed circuit (see
. A shorter distance may result in
®
2N LiftIP is installed !
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