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ESIM384 Installation and Configuration Manual v1.1
use wireless signal repeater (eWR2).
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the longer the antenna cable and the more the number of connections, the more the signal loss. Please be aware that if you use anten-
na’s extension cord or/and any other additional elements of wiring (cables,wires, etc.),then more antenna gain will be lost.
•
We recommend that the best place for Alarm System installation is at the approximately estimated centre of all mounted Wireless de-
vices across your premises (house/flat), and it’s not necessarily the centre of a room itself,i.e. positioning basically depends on the total of
the secured area. For a better visual perception, see the following picture:
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all
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all
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Wall
Wall
Wall
Wall
Wall
Wall
Wall
Wall
Alarm
System
Alarm
System
Wireless
device
Wireless
device
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the angle at which the transmitted signal hits the wall is very important. the effective wall thickness – and with it the signal attenuation
– varies according to this angle. Signals should be transmitted as directly as possible through the wall.
Wall
Wall
Alarm
System
Wireless
device
•
When using devices with an internal receiving antenna, the device should not be installed on the same side of the wall as the transmit-
ter. Near a wall, the radio waves are likely to be subject to interfering dispersions or reflections. Consequently, the position of the antenna
has to be on the opposite or connecting wall.
Wall
Wall
Alarm
System
Wireless
device
•
When using Alarm System with an external antenna, the ideal antenna installation place is a central location in the room. Where possible
the antenna should be at least 10 – 15 cm away from the wall corner or concrete ceiling.
Ceiling
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Antenna
holding
Antenna
Min. 0,5 m
Min.
0,1 m
Intermediate ceiling
