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Available accessories
External alarm ON/OFF switch
(A-2937-0)
For connection to the Infrared motion
transmitter. This external alarm
ON/OFF switch can be used to ena-
ble and disable the transmitter with-
out triggering the alarm (if it is positio-
ned correctly). Please note that the
alarm ON/OFF switch on the transmitter
must be enabled in order to con-nect
the external alarm ON/OFF switch.
Switch for surface-mounting. Length of
the connection cable: 10 m.
Call button
Pressing the call button on the Infra-
red motion transmitter causes a sig-
nal to be triggered on every receiver
which is set to the same channel as
the transmitter. This enables people to
be called who are in other rooms.
Also, this button can be used for
checking that the system is functio-
ning properly, even without the acces-
sories connected.
Radio range
Note the following points when using
the Infrared motion transmitter:
The radio signals are designed to
have a range of 80 meters under opti-
mum conditions.
The following conditions may result in
a reduced range:
- Signal transmission through building
structures or vegetation.
- Interference from TVs, computer
monitors and mobile phones. Under
certain circumstances, this may pre-
vent the receiver from functioning
at all.
- Positioning of the transmitter at an
unfavourable distance from surfaces
which reflect radio waves, for exam-
ple floors and walls.
This may lead to the signal wave
being weakened or even cancelled
out by the reflected wave.
- Metallic objects reduce the range
due to the shielding effect of the
metal.
- Particularly in towns and cities, there
may be many other sources of
radio waves which can disrupt the
original signal.
- Having units operating at similar
frequencies located close to one
another may also result in mutual
interference.
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