2N Lift8 Breve manual - Página 2
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This audio unit is designed for installation on the lift shaft bottom or lift cabin roof, or
wherever it is necessary to communicate (during lift maintenance, e.g.). Theaudio unit is
enclosed in a robust yellow cover. It is not intended for outdoor use but perfectly tolerates
the conditions in lift shafts: is resistant against fall of small objects, dripping oil, etc. The
ALARM button activates the control 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 speaker. A handset can be connected for better
acoustic properties. Thanks to its size and robustness, the audio unit has a very good,
strong sound.
Connector description
The audio unit has one connector for bus connection. The second RJ–11 connector is used
for handset connection. Both the connectors are under the side doors.
Bus connection
Loosen the screws to the right and open the connector cover. There is just one connector
under the cover: a bus connector. Pull out the terminal from the connector, connect the
wires and replace the terminal. Make sure that the polarity is maintained.
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.
Audio unit location configuration
Audio unit location means configuration of jumpers (see the cover print). You do not have
to change the jumper configuration if you are installing the audio unit at the shaft bottom.
Otherwise, proceed as follows:
Procedure:
1. Loosen the screws on the jumper-protecting door and open the door.
2. Configure the required change according to the printed figure below the door
(this audio unit cannot be configured as common for multiple).