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5.2 Wireless System Installation
DECT Installation
153
Precautions
• The Cell Station should be kept free of dust, moisture, high temperature (more than 40 °C),
low temperature (less than 5 °C), vibration, and should not be exposed to direct sunlight.
• Keep distance between the equipment listed below in order to prevent noise, interference or
the disconnection of a conversation.
Note
• In Cell Station overlap areas, if the signal from one Cell Station becomes weak, the portable
station will start Call handover to the next Cell Station. However if there is no free channel
for call handover, the portable station will remain with its current Cell Station until out of
range and the call is lost.
• Too many Cell Station in a small area can cause problems due to conflicts over which signal
channels each Cell Station can use. Ideally Cell Stations should be a minimum of 25 to 40
m apart.
Equipment Distance
Cell Station and office equipment such as a computer,
telex, fax, etc., or microwaves.
more than 1.8 m
Cell Station and portable station more than 1 m
Two portable stations more than 0.5 m
Portable station and proprietary wired telephone more than 1 m
The system and Cell Station more than 2 m
<Basic location>
5 – 10 m
<Location example for a building
which has an object in the centre.>
CS CS
Cell Stations
Object