AASTRA RFP 34 IP DECT Site Survey Kit User Guide DE - Handbuch (Seite 48)

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Measurement/Planning
DECT base station for outdoor supply
The following principles are to be observed when installing DECT base stations outdoors:
• Choose a central position and avoid flat penetration angles.
• Ensure that the chosen location is as protected from the weather as possible and corresponds to
the type of protection of the outdoor base station.
• Make sure the installation site is chosen sufficiently high to be protected from acts of vandalism.
Tip
For outdoor supply always check the use of an external antenna, too. This may result in a better solu-
tion, which can help to save costs in the long run.
DECT base station for indoor supply
The following principles are to be observed when installing DECT base stations indoors:
• In indoor supply install the base stations on inner walls rather than outdoor walls.
• Ceiling mounting can also be considered.
• Do not install in the immediate vicinity of cable ducts, metal cabinets and other large metal
objects. They obstruct transmission and/or can result in crosstalk. Maintain a distance of > 50 cm!
• Connecting line between PBX and DECT base station:
Crosstalk can occur here if they are laid in parallel with mains feeder lines inside cable ducts (e.g.
engineering workshops). This must be taken into account when choosing the cable and the cable
route.
• RF interference fields: PCs and other electronic equipment can affect radio transmission in the
vicinity either intermittently or permanently.
• Base stations and handsets generate pulsed RF signals. These can affect sensitive electronic
equipment (control systems, measuring sensors, sensors, diagnostics equipment on intensive-
care wards in hospitals, etc.) permanently or temporarily.
Note
Take note of safety distances and safety regulations. In areas subject to explosion hazards take note
of the relevant rules and regulations.