Stand-Alone Access Unit; Stand Alone Access Unit; Modular Base Station Equipment - Alvarion BreezeACCESS 900 System Manual

Stand-Alone Access Unit

The Access Unit (AU) provides all the functionality necessary to
communicate with the remote Subscriber Units as well as to connect to
the backbone of the service provider.
The AU-E-NI Access Unit is comprised of an AU-NI indoor unit, and a
900 MHz outdoor radio unit that connects to an antenna. The AU-NI is
a desktop or wall-mountable unit that is powered from the mains (100-
250 VAC) through an external power transformer and connects to the
network through a standard IEEE 802.3 Ethernet 10BaseT (RJ 45)
interface.
A coaxial Intermediate Frequency (IF) cable connects between the AU-NI
indoor unit and the outdoor unit. This cable carries 440 MHz IF signals,
power (12 VDC) and management and control signals from the indoor
unit to the outdoor unit.

Modular Base Station Equipment

The Base Station equipment is based on the BS-SH 3U chassis, which
is suitable for installation in 19" racks. The chassis contains one or two
power supply modules, up to six active Access Unit Network Interface
(BS-AU) modules and an optional BS-GU GPS and Alarms module.
Two different types of power supply modules are available: the BS-PS
that is powered from a –48 VDC power source, and the BS-PS-AC,
powered from the 110/230 VAC mains. The optional use of two power
supply modules is for fail-safe operation through power supply
redundancy.
Each BS-AU module, together with its outdoor radio unit comprises an
AU-E-BS Access Unit that serves a single sector. The AU-RE outdoor
unit contains the radio module and a RF connector for a separate
external antenna.
The BS-AU modules connect to the network through standard IEEE
802.3 Ethernet 10BaseT (RJ 45) interfaces. A coaxial Intermediate
Frequency (IF) cable connects the indoor module to the outdoor unit.
This cable carries 440 MHz IF signals, power (12 VDC) and management
and control signals from the indoor unit to the outdoor unit.
Manual Revision 1.0
Stand-Alone Access Unit
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