User's Manual

Introduction
BreezeACCESS MMDS Series 1 BS Equipment Installation Manual
1. INTRODUCTION
This manual describes installation guidelines for BreezeACCESS MMDS base
station equipment, including the stand-alone AU-E/A-NI-MMDS Access Units
and the modular AU-E/A-BS-MMDS Units with the BS-SH rack mounted shelf.
The BreezeACCESS IP Broadband Wireless Local Loop (WLL) system allows
access service providers to provide high-speed IP connectivity services to their
subscribers. To support IP-based services effectively BreezeACCESS systems
employ wireless packet data switching technology.
The BreezeACCESS MMDS line of products uses Frequency Hopping Spread
Spectrum radios that operate in Time Duplex Division (TDD) mode in the
2.500GHz – 2.686GHz frequency range.
The AU-A/E-NI and the AU-A/E-BS Access Units are comprised of an indoor
unit and an outdoor unit. In the AU-A-NI and AU-A-BS products, the outdoor
unit (AU-RA) contains the radio module and an integral flat antenna. In the
AU-E-NI and AU-E-BS products, the outdoor unit (AU-RE) contains the radio
module and an interface to an external antenna (not included).
The indoor unit of the AU-A/E-NI is a stand-alone unit (AU-NI) that is powered
from the mains via its AU-PS power supply unit. The indoor unit of the AU-A/E-
BS is a module (BS-AU) that is designed for insertion into the BS-SH shelf. The
BS-SH, which is a 3U shelf suitable for installation in 19 racks, can contain up
to six BS-AU active modules and one or two BS-PS power supply modules. The
shelf is powered from a –48VDC power source. Power supply redundancy is
supported through the optional use of a second BS-PS power supply module.
The indoor unit provides the interface to the network. It also contains an IF
(Intermediate Frequency) module and is connected to the outdoor unit via a
50-ohm coaxial IF cable. The IF cable serves for transmission of the 440MHz IF
signal between the indoor and the outdoor units. It also serves for transferring
power (12VDC), management and control signals from the indoor unit to the
outdoor unit.
Note: The information contained in this manual is applicable to
BreezeACCESS MMDS units with software release 2.5.