User Manual

Table Of Contents
Remote access
Technical details
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Because of the attenuation of the walls and ceilings, the signal inside a building can be weak, that is, an
antenna must be placed on the exterior of the building, preferably on the roof.
You can get the best signal strength when the nearest base station of the mobile network you want to use
is not too far away and there are no large obstacles between the base station and the modem's antenna
(line of sight). Directional antennas improve the transmission quality, but must be optimally directed
towards the base station.
The antenna cable between the modem and the antenna must be short, otherwise the signal is too weak.
Observe the manufacturer's information on the cable type and maximum length. Antenna cables may not be
bent or pinched too severely. The mobile modem must be placed near the optimum antenna location. The
length of the cable to the IP network is not that critical.
The mobile network operator provides the SIM card. SIM cards come in various sizes, depending on the
modem. Choose the correct SIM card.
The modem is connected to the IP network. The safety measures depend on the modem.
GPRS modems with an RS-232 connection can be connected to some PX controllers using a USB-RS-232
converter.
RF-based access networks
Since there are different technologies, an RF-based access is only implemented in tight cooperation with
the network operator. We recommend that you strictly follow his guidelines.