Recommendations
Ensure good radio transmission
The correct propagation of radio waves depends on the nature of the material they travel through.
The range of the waves may vary depending on the type of construction (chalet, type of walls or partitions, apartment with metal
structure, etc.).
When a radio wave is unable to penetrate through a material, it is reflected. This impairs reception, in particular at the central unit.
It is often enough to move the central unit by just a few centimetres in order to avoid a zone without coverage.
Optimising radio range
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The central unit/phone dialer is the heart of the installation. Place it in a clear area in the centre of the home.
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Position the central unit/phone dialer devices
more than 60 cm above ground level
.
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To improve the propagation of the radio waves, make sure that the central unit is not:
- within one metre of an electrical fuse board or a cable bundle,
- close to an earth or metal plate,
- within one metre of sources of radio interference (such as a TV with surround HiFi).
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Avoid fixing detectors and keypads to metal sections or in confined areas.
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Fix sirens to clear areas and as high as possible.
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Before fixing the central unit/phone dialer, make sure that the various devices transmit properly. In the event of transmission
problems, move the central unit.
Ensuring the correct operation of the tamper switch system
For each of the products (central unit/phone dialer, siren or LCD keypad), choose a wall space with a good surface condition in order
to ensure the efficiency of the tamper switches (protection against vandalism).
Important
To ensure that the system functions optimally, you are advised to choose the correct location for each device.
Plasterboard/Plaster/Wood
90 to 100%
Brick/Breeze block
65 to 95%
Reinforced concrete
10 to 70%
Metal
0 to 10%
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