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Alcatel-Lucent
Antenna connectors for WWAN 1 (with diversity)
Fig. 13:
The following image shows you where to find the antenna connectors for the CELL2 module.
Antenna connectors for WWAN 2 (with diversity)
Fig. 14:
The device incorporates two WWAN antenna connectors ( ANT.1 and ANT.2) for each module.
Depending on the technology you use for the connection, you will need to use one (e.g. GPRS) or two antennas (e.g.
LTE).
You must always install the antenna for the ANT.1 (Main) connector (mandatory). The ANT.2 (Ext.Diversity) an-
tenna connector is optional.
For some models, in cases where you are not going to install the ANT.2 Ext Diversity antenna, you need to suitably
configure the router, disabling this antenna, in order to obtain optimum performance from the device.
When you install both the ANT.1 Main and the ANT.2 Ext.Diversity antennas, the minimum distance between them
must be 7 cm and the maximum recommended distance is 25 cm.
In order to achieve optimum features, the installed radio frequency accessories (antennas and cables) should be
those recommended by ALU.
ALU has a series of accessories that allow the OA5725A routers to be installed in different locations.
3.7.3.1 Positioning the antenna
The antenna orientation and its location with respect to other wireless devices and radiation devices (such as com-
munication devices, personal computers, etc.) can significantly influence device performance.
The antennas transmit and receive radio signals. Performance is also affected by environmental factors such as the
distance between the device and the base station, physical obstacles and other interferences due to radio frequen-
cies (RF).
In order to achieve the best coverage, carry out the following instructions:
• Whenever possible, place the antenna where there are no physical obstacles. Obstacles between the antenna and
the base station degrade the wireless signal. Place the antenna above ground level and ensure that it is suitably
orientated towards the nearest base station.
• Density of materials also affects the antennas. Place them away from any type of wall, metal screens, mirrors, etc.
• Do not place the antenna near columns that can produce shadow areas and reduce the coverage zone.
OA5725A Router
3 Components and Power Supply
17
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