Cell Extender - Alvarion BreezeACCESS 900 System Manual

Cell Extender

The Cell Extender operates as an Access and Subscriber Unit that are
connected back-to-back. The Subscriber Unit component operated in
the 2.4 GHz band and provides connectivity to the primary
BreezeACCESS II base station. The Access Unit component operates in
the 900 MHz band and serves the Subscriber Units located in the area
covered by the Cell Extender.
The CX-2.4-900 Cell Extender is comprised of an Interface Unit, a
2.4 GHz Radio Unit and a 900 MHz Radio Unit.
The Interface Unit includes the interface (indoor) units of a
BreezeACCESS II Subscriber Unit and a BreezeACCESS 900 Access
Unit. These two units are connected to each other via a hub module. It
provides an interface for an optional local Ethernet connection and is
powered from the mains (110/220VAC).
The SU-RA-2.4 radio unit of the 2.4 GHz Subscriber Unit component
incorporates the radio module and an integrated flat antenna.
The AU-RE-900 radio unit of the 900 MHz Access Unit component
includes the radio unit and a connection to an antenna.
The Interface Unit is connected to the Radio Units via 50-ohm coaxial
Intermediate Frequency (IF) cables. These cables carry 440 MHz IF
signals between the Interface Unit and the Radio Units. In addition,
these cables transfer power (12 VDC) and control signals from the
Interface Unit to the Radio Units.
Both BreezeACCESS equipment in both the 2.4 GHz and 900 MHz
bands operate in Time Division Duplex (TDD) mode. It employs wireless
packet data switching technology, using Frequency Hopping Spread
Spectrum (FHSS) radios.
Manual Revision 1.1

Cell Extender

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