Table of Contents
Advertisement
C
P
ORDLESS
HONE
3.9.3.2
3.9.3.3
3.9.4
26
Ceilings and floors
The difference between ceilings and floors compared to walls lies in the
materials used. Concrete and reinforced concrete are the main materials
and it is important to determine the level of coverage of a base station on
the floor above and below. For 'normal' concrete this coverage extends
to a radius of approximately 15-20 metres which provides coverage for
the floors below and above. An open stairway or an atrium can in some
cases be used to provide coverage to two floors at the same time, see
figure 14 Open stairway or atrium on page 26.
Open stairway
or atrium
Base
station
Figure 14:Open stairway or atrium
Fire-resistant walls/doors
The same facts applies for fire walls as for normal walls mentioned in the
section above. However, fire doors are usually open during the site
survey, it is important to close the fire doors before doing the final site
survey measurement and before finalising the base station plan. Should
a fire break out and the doors then be closed, there must of course still
be sufficient coverage.
Special areas
This section describes a number of special areas which must be consid-
ered when doing a base station planning, and how to ensure full DECT
coverage in these areas
.
5/1531-ANF 901 14 Uen D3 2013-11-28
2:nd floor
1:st floor
Advertisement
Table of Contents
