Functional Principle; Special Features - HumanTechnik lisa Mode D'emploi

Congratulations on purchasing your
RF telephone 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.
Included in the standard package:
Please check if all following compo-
nents are included:
- lisa RF telephone transmitter
acoustic
- Microphone cable, length 1 m
- 9 V block battery
- Operating Instructions
- Warranty card
If any parts are missing please imme-
diately contact your dealer or the
manufacturer directly.

Functional principle

A signalling system consists of at
least one transmitter and one receiver.
The RF telephone transmitter acou-
stic uses a microphone to pick up the
signals from the telephone. It con-
verts these signals into radio pulses
(868.35 MHz) and transmits them to
the receiver without the need for
wires.

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 RF telephone trans-
mitter acoustic. Open it by your
thumb, with sliding the cover of the
battery compartment to the right of
the receiver. Connect a 9 V block
battery to the connector plug, place
the battery into the recess and close
the receiver again. When the battery
is connected, the receiving signals
may be triggered once.
2. Setting the correct radio channel
A special digital transmission pro-
cess ensures that the radio signals
are picked up without errors. This
process also makes it possible to set
10 different radio channels.
When supplied from the factory, all
RF telephone transmitters acoustic
are set to channel 0. It is only neces-
sary to set units to other channels if
you have several different users ope-
rating units in the same building.
English 9