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Congratulations on purchasing your
doorbell transmitter acoustic.
We hope it will give you many years
of reassuring operation. Please read
through these operating instructions
carefully. They tell you how to set up
the system correctly and explain all
the system's features to you.
Standard componets
Please check if all following compo-
nents are included:
- lisa radio doorbell transmitter acoustic
- microphone cable 1 m
- stylus for setting the signal type
- 9 V block battery
- operating Instructions
- warranty card
If any parts are missing, please im-
mediately contact your dealer or the
manufacturer directly.
Operating principle
A signalling system consists of at
least one transmitter and one recei-
ver. The radio doorbell transmitter
acoustic uses a microphone to pick
up the signals from doorbell. It con-
verts these signals into radio pulses
(868.35 MHz) and transmits them to
the receiver without the need for wi-
res.
Special features
When a signal is detected, it is trans-
mitted for a total of 22 seconds. This
increases both the reliability and the
range of the system.
Setting up the system –
1. Inserting the battery
There is a battery compartment on
the back of the radio doorbell trans-
mitter acoustic. Open it by sliding the
cover of the battery compartment to
the right of the receiver using your
thumb. Connect a 9 V block battery
to the connector plug, insert the bat-
tery into the battery compartment and
close the device. When the battery is
connected, the receiving signals may
be triggered once.
2. Setting the correct radio channel
A special digital transmission process
ensures that the radio signals are pi-
cked up without errors. This process
also makes it possible to set 10 diffe-
rent radio channels.
When supplied from the factory, all ra-
dio doorbell transmitters acoustic are
set to channel 0. It is only necessary
to set units to other channels, if you
have several different users operating
units in the same building.
Set the required channel by using a
small screwdriver to turn the channel
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