Separate microphone mounting, Separate speaker mounting, Frequently asked questions about speaker – 2N Lift8 v1.6.0 User Manual
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the
on a perfectly degreased surface with a high-quality double-sided foam
audio unit
self-adhesive tape.
Separate Microphone Mounting
If the microphone is supplied separately with a cable on a 25×25 mm large board with
self-adhesive foil, j
hole in the panel (one hole must have
ust glue it directly behind any
the minimum diameter of 5 mm, a group of smaller holes must have the same total
area). Be sure to degrease and clean the surface carefully before!
Requirements
The minimum distance between the loudspeaker and microphone centres
A lower distance may lead to acoustic feedback. A greater distance
is 90 mm.
(within the available 1m cable) does not matter.
The microphone must be stuck on so that it does not pick up (even in part!) the
acoustic pressure from the space behind the control panel. Such sensing might
result in acoustic feedback since the speaker strongly radiates sound into the
cavity.
Separate Speaker Mounting
The speaker is equipped with a cable and can be separated from the electronics (simply
pulled out) within the reach of the cables delivered (1m). This option is useful where
there is not enough space for the whole electronic equipment. Fit the speaker
according to the instructions below:
While gluing the speaker choose such procedures or adhesives that prevent
membrane damage by adhesives and volatile substances or heat.
We recommend you to keep the speaker sealed to eliminate vibrations and
provide electrical insulation.
Frequently Asked Questions about Speaker
Is it possible to use a common speaker for the communicator and floor
?
announcer
No, it is not possible.
May I use a speaker of my own?
Yes, but make sure that the impedance is 64 Ω. By doing this you assume
responsibility for sufficient volume and frequency range.
May I place the speaker on the cabin ceiling?
This placement is not recommended.
May I use a longer cable to the speaker?
For the speaker yes, but we do not recommend it for the microphone.
Safety
Leave no gap between the lift control panel and the
surface to
audio unit
avoid acoustic speaker fault and acoustic speaker-microphone feedback.
Do not use this type of
in a position other than mounted on a
audio unit
sufficiently large board. The acoustic properties of an uninstalled audio
cannot be guaranteed.
unit