Equipment Location Guidelines; If Cables - Alvarion BreezeACCESS II CX System Manual

Equipment Location Guidelines

This section provides key guidelines for selecting the optimal
installation locations for the various Cell Extender components.
WARNING
ONLY experienced installation professionals who are familiar with local building and
safety codes and, wherever applicable, are licensed by the appropriate government
regulatory authorities should install outdoor units and antennas.
Failure to do so may void the BreezeACCESS product warranty and may expose the
end user or Service Provider to legal and financial liabilities. Alvarion and its resellers or
distributors are not liable for injury, damage or regulation violations associated with the
installation of Outdoor Units or antennas.
Select the optimal locations for the equipment using the following
guidelines:
Units should be installed in easily accessible locations to facilitate
installation and testing.
The higher the placement of the antennas, the better the achievable
link quality. Locate the Cell Extender's antennas at least 20 cm (8
in.) away from each other or any other antenna.
The AU's antenna should be installed as close as possible to the
AU's outdoor unit to minimize loss in the RF cable. The antenna
should be installed so as to provide coverage to all Subscriber Units
within its service area.
NOTE
The Cell Extender equipment complies with the ETS 300 385 standard and is protected
against secondary lightning strikes when the Radio Units and antenna are properly
grounded according to the relevant country specific industry standards for protection of
structures against lightning. The system complies with EN 61000 4 5 test level 3 (2kV).

IF Cables

The 2.4 GHz and 900 MHz Radio Units of the Cell Extender are
connected to the Interface Unit via IF cables carrying both signals and
power. The IF frequency is 440 MHz. The maximum permitted
attenuation of the IF cable is 15dB at 440 MHz and the maximum
permitted DC resistance (the sum of the DC resistance of the inner and
outer conductors) is 1.5 ohms. This enables a cable length of up to 30m
when using the standard RG 58 cable.
If longer cables are required, a cable with lower attenuation and/or DC
resistance should be used.
Manual Revision 1.0
Installation Requirements
2-5