Alvarion BreezeACCESS II, Системное руководство

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System Components
2-7
BreezeACCESS Version 4.5 System Manual
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Standalone “Micro-Cell” Access Unit
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AU-I/I-D miniature indoor units
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
which 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-A/E-BS Access Unit that serves a single sector.
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In the AU-A-BS series, the AU-RA outdoor unit contains a radio unit
and an integral antenna.
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In the AU-E-BS series, 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.