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7. Installation
a) Notes on selecting the installation location
• The PC interface must be installed in a dry indoor room (not in a damp cellar
or bathroom, for example).
• A serial interface (RS232) must be available on the computer for connection
to the computer.
• Choose a secured area so that intruders cannot quickly tamper with the
device. The installation location should neither be immediately visible from
outside the house nor from within the house. The device would ideally be
mounted in a lockable cupboard which, however, is hardly ever possible due
to the necessity for the device to be kept connected to the computer.
The PC interface is generally operated near the computer.
The PC interface casing could therefore be placed in an inconspicuous box
near the computer. A hollowed out old book could also be used.
• The distance between the PC interface and the alarm base station should
be as short as possible. As a lot of data must be exchanged between both
components, the data are broken down into several short commands which
are transmitted singly and confirmed by the other side. Due to the great
number of commands, transmission errors can occur, especially when the
components are far apart. The transmission is repeated if it does not
succeed the first time, which prolongs the transmission time.
• Do not install the device on or near large metal objects (radiators, mirrors,
aluminium laminated walls, metal doors) as this can reduce the wireless
range.
• If you are using a power supply unit to supply the power, a socket (230V~/
50Hz) must be located near the installation location.
• The PC interface can either be freestanding or mounted on the wall.