ASCOM Ascotel 2025 System Manual page 675

ascom Ascotel 2025/2045/2065
Obstacles may include:
• Moving metal objects such as lifts, cranes, carriages, escalators, blinds, espe-
cially ones that are actuated automatically (the influence of such obstacles var-
ies and is therefore difficult to assess).
• Metal-panelled rooms and large metal-clad objects such as air conditioners,
computer rooms, metallized glassed areas (mirrored), fire protection walls,
storage tank installations, refrigerating units, boilers.
• Building structures and installations such as steel-reinforced concrete ceilings
and walls, stairways, long corridors, rising mains, cable ducts.
• Room furnishings such as metal shelves, file cabinets.
100 %
Fig. 3.19: Attenuation of RF signals due to walls, windows, plants
Due to their typical furnishings / fixtures projects in the following environments
must be regarded as critical:
• Garages / repair workshops
• Scrap merchants
• Campsites
• Galvanizing plants
• Metal-working industry
3.44 Planning DECT Systems
Plants, lightweight partitions, wooden
façades with standard commercial windows
Brick walls with stnadard commercial
windows
Brick walls with metal-coated
double-glazed windows
Reinforced concrete walls or ceiling
(depending on thickness)
Metal-glass façade with triple glazed
windows
Metal façade without windows
5 dB
30 %
10 %
10 dB
1%
20 dB
0,5 %
23 dB
0,25 %
25 dB
0,01%
40 dB
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