2N LiftNet, User Manual

Page: 49 / 99

Audio Unit
– Machine Room
2.4
49
Electric Installation
Description of connectors
Release the screw on the right-hand side and open the connector cover. There are
three connectors:
Connectors (under the side door)
Bus connector
Lift blocking connector
Phone connector
Address Setting
There two groups of jumpers under the transparent front cover. For their meanings
see the printing located directly under them.

Left-hand group of 4 jumpers: leave them in the “machine room” position.
Note

You can set another position too – if, for example, you want to
have a classic telephone and thus program the CU on the shaft
bottom, you can use this audio unit and set the jumper into the
appropriate position.

Right-hand group of 8 jumpers: address setting. If the machine room is
shared by multiple lifts, you can use one audio unit and set more addresses
with the available jumpers. This is impossible with other types of audio units!
Note

If more addresses have been set in the audio unit, press the
TRIPHONY button to activate communication with the lift with the
lowest address.
Caution

Avoid the audio unit address duplicity.
Figure 2.20
Audio Unit –
Machine
Room
Connectors