2N Lift emergency phone 2N LiftNet - Manual, 1446 v1.8.3 - Manual (Page 51)

Audio Unit
– Lift Shaft / Cabin Roof
2.5
51
2.5 Audio Unit
– Lift Shaft / Cabin Roof
Description
This audio unit is designed for installation on the lift shaft bottom or lift cabin roof, or
similar places where communication is needed during lift maintenance, for example.
The audio unit is enclosed in a robust yellow cover. It is not intended for outdoor use
but perfectly fits in lift shafts – is resistant against fall of small objects, dripping oil,
etc. The ALARM button activates the dispatching centre connection, the TRIPHONY
bottom enables conference connection with the other audio units of one and the same
lift. The audio unit contains a built-in microphone and a loudspeaker. Thanks to its
size and robustness, the audio unit features a very good sound.
Loudspeaker
LED indicator (red) – unit initialisation error
Door locking screw
Address setting door
Lift number (1–8) setting
Audio unit position setting
“Call in progress” indicator – yellow
“Call established” indicator – green
ALARM button – white-backlit at relax
TRIPHONY button – yellow-backlit when the triphony mode is active
Operating instructions
This unit may only be used by authorised persons such as the lift maintenance staff.
The TRIPHONY button activates voice communication between all units with the same
lift number.
Figure 2.21
Audio Unit – Lift
Shaft / Cabin
Roof Description