HumanTechnik lisa Instrucciones De Servicio página 10

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 doorbell transmitters direct 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
selector switch, which is located
towards the top of the battery com-
partment, to the required channel
number.
All transmitters and receivers must
be set to the same channel.
Fig. Setting the correct radio channel.
3. Installing the doorbell cable
Plug the 2.5 mm jack plug of the
doorbell cable into the socket on the
underside of the RF doorbell trans-
mitter direct . Connect the two bare
wires to your doorbell.
10 English
4. Systems with two different door
chimes
If your intercom is capable of diffe-
rentiating between 2 different door
chimes (e.g. the door to your flat and
the entrance door to the building),
you can convey the 2 door chimes to
the RF doorbell transmitter direct
using 2 connection cables.
To do this, connect the 2.5 mm jack
plugs of the 2 connection cables into
the sockets on the RF doorbell trans-
mitter direct . Route the cables to the 2
doorbells and connect the 2 pairs of
bare wires to the doorbell switches.
Important: The triggering system is
only suitable for connection to low-
voltage doorbell systems. The input
voltage must be at least 3 volts and
no more than 15 volts. It is possible
to connect to either alternating or
direct current voltage.
Never connect the thin cable to
mains voltage (230 V ±10%).
Risk of fatal injury and irreparable
damage to the transmitter!
Possible reasons for the unit not
functioning
- If your doorbell system uses direct
current voltage, you have not con-
nected the wires with the correct
polarity. Swap over the wires.
- The doorbell voltage of your sys-
tem is too low. Either contact an
electrician to have the doorbell
system converted or use the RF
doorbell transmitter acoustic.