Product manual

Configuration directions, Base station planning - additional information
Technical Product Manual - DCT1800-GAP
TD 92093 (1/LZBNB 103 108 R4D) / 2006-03-09/ Ver.C
© 2006
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Bear in mind that, depending on the client’s requirements, you will have to take special note of these
areas in addition, therefore, to the normal survey.
Lift
If the client wishes to have coverage in the lift, there are two methods available:
• Locate the base station close to the lift, preferably at the front and such that the base station can
‘see’ the front
1
. This is because a lift is usually surrounded on three sides by a reinforced lift shaft,
with the only opening being at the front. Bear in mind that this means that you must also take
account of this for the rest of the planning because locating a base station in front of a lift is usually
not the most ideal position for the planning as a whole. It is usually the case that you will require
one or more extra base stations to provide coverage for a lift. The base station will generally also
provide coverage for the storey above and below the floor on which it is installed.
• Locate the base station on the lift. Bear in mind, however, that you will then need a base station
which is solely for the lift. This is only a sensible option in large buildings where the client has
expressed the wish for good quality, despite the possible extra costs that this will entail. This
solution is not very efficient in terms of the overall planning because the lift base station only
provides coverage in the lift and no other part of the building.
Stairwell
The major problem with stairwells is that they are usually sited in a corner of the building. Coverage
is not a problem in itself, but it must be seen in the context of the overall planning. There are various
ways of providing coverage for a stairwell. Either you install a base station directly in the stairwell
(therefore this is actually a dedicated base station for the stairwell), or you install a base station in the
close vicinity of a stairwell. In turn, this means that you install the base station within a radius of 10
metres of the entrance to the stairwell where the base station again will ‘see’ as much of the stairwell
as possible. This all depends, of course, on the type and location of the stairwell (is it an open or
closed stairwell; is it sited in a corner of the building or in the centre etc.); common sense is very
valuable in such a situation.
Toilet rooms
Toilets rooms are generally in awkward positions for a site survey: behind or next to lifts, in or next to
stairwells or in a corner of the building. Here too the location of the base stations, which can again be
installed in a number of ways, must be carefully considered. If there is a large space available, you
can consider installing a base station in the toilet room itself. If not, it is again better to install the base
station in the vicinity of the toilet room in a location where the base station can ‘see’ as much as
possible of the toilet room (preferably, of course, the entrance because doors are generally made of
wood and these damp the signal less than the walls).
If you site the base station in the vicinity of the toilet room, locate it such that the base station provides
coverage for as much of the rest of the floor as possible. Take particular note of the construction of
the room (material and location): see paragraph
4.2.2.
Maintenance shaft
In larger buildings there is usually the requirement that coverage also be provided in maintenance
rooms. The most common are the rooms for the lift and ventilation system. The lift maintenance room
is often on the roof or in the basement. The ventilation maintenance room is usually on the roof. Do
not omit these rooms; rather, they should be considered with the client to avoid the client being faced
1. ‘see’: there are as few obstacles as possible such as walls etc. between the base station and the lift (compare this
with shining an incandescent lamp where wood and plasterboard panels are transparent).