Siemens Bewator Entro Series

Planning a wireless application
21
Siemens AB
Security Products
03.2014
4.6.3 RF9 and RF30-EM on same wall
In cases where a door is on the same wall should the C not be placed straight
above a RF30-EM.
As the illustration shows the situation is worse if e g a RF9 is mounted straight
above the RF30-EM.
1.
RF9 – wall mounting
2.
Door unit reached but the signal
It is better to place the RF9 on an opposite wall (in this case).
1.
RF9 – on the opposite wall
2.
Door unit reached by the signal
Note that often the contact can be established by reflections which is explained in
chapter 4.7 Material characteristics.