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INSTALLATION
Machine Access Box RAS
DOC_DEV_RAS_User guide_A
Page 41
Connecting the router to the cellular network
8.1
Controls before installing the router
Autorisation to use a cellular connection
Check the cellular connection is authorised at the location where the router RAS is supposed to be installed.
Control of the reception level before installing the machine
Before installing the router, refer to a cell map over the Internet to check that the cellular reception signal is
strong enough at the location where the machine is supposed to be installed.
Select the right mobile service provider.
Reception level confirmation
If the reception seems possible, confirm with a control on site.
The reception level can be measured with a smartphone.
Most smartphones provide the reception level information (parameters or diagnostic menu).
To carry-out that control, use mandatorily a SIM card subscribed with the mobile service provider selected
for the router RAS.
Remark :
The router RAS itself provides the reception level information in two ways :
A reception level led indicator
The diagnostic menu of the administration web server of the router
8.2
Cellular antenna
We provide a complete catalog of cellular antennas :
Magnet mount antenna,
roof antenna,
ground plane antenna,
directive antenna,
omnidirectional antenna.
8.3
Coaxial cable
If necessary, the antenna can be connected to the router RAS through a coaxial cable.
The signal attenuation in a usual coaxial cable is 0,2 to 0.4 dB / m diameter , mm), that is to say 2 to 4 dB for
a 10 meter long cable.
If a coaxial cable must be used to connect the antenna to the router, the attenuation in the cable has to be
taken into account to calculate the effective RF signal received by the router RAS.
Refer to our cables and antennas catalogue.
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