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Alcatel-Lucent Enterprise
Caution
To get high-quality performance, the router must always have the WWAN antennas installed.
There are a series of accessories (dipole antennas, indoor antennas, roof mount antennas, extension cables, etc.)
that allow you to install the OA5725R routers in different locations.
3.5.2.1 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 influence significantly the 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).
To achieve the best coverage, follow these steps:
• 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 steer it 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.
• Keep the antenna away from metal pipes such as canals air-conditioning, etc.
• Please bear in mind that other wireless devices such as telephones, microwaves, etc., can temporarily interfere
with the quality of the wireless signal.
• We do not recommend that you install the antennas near or between racks containing communication devices,
computers, etc. Use an extension cable and place the antenna outside.
The following recommendations are applicable to all wireless devices:
• Do not touch or move the antenna while the device is transmitting or receiving.
• When the antenna is transmitting, do not touch any equipment that contains devices that radiate very close to, or
touching, any exposed part of the body (particularly face and eyes).
• Do not install the device in areas where the atmosphere is potentially explosive.
• Wireless devices can cause interference in other devices. Do not use the device in areas where medical equip-
ment is installed.
Note
Whenever the antenna connections are to be connected to any external/outdoor antennas: The shield
of the coaxial cable must be connected to earth (grounded) at the entrance to the building in accord-
ance with applicable national electrical installation codes. In the US, this is required by Article 820 of
the NFPA 70 (National Electrical Code).
3.5.3 Connecting ADSL/ADSL2+/VDSL (DSL connector)
The OA5725R router has a DSL connector that allows connection to an ADSL/ADSL2+/VDSL network. It is a 4-wire
female RJ11, and only the two middle ones are used for data transmission and reception.
OA5725R Router
3 Components and Power Supply
13
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