User's Manual

Table Of Contents
Chapter 2 - Installation GPS Installation
BreezeMAX Extreme 49 System Manual
2.3 GPS Installation
Alvarion offers two types of GPS antenna (basic and high-gain) that can be
installed at a distance of up to 25m (high-gain) or 3m (basic) from the BTS (with
the required mounting kit and connecting cable). Refer to “GPS Antennas” on
page 26 in the Specifications section for more information.
When installing a site with more than one BTS (e.g. a 3 or 4 sector deployment),
you may leverage GPS chaining capability of the BreezeMAX Extreme BTS. The
system supports chaining of clock signals for up to 4 collocated units using a
single GPS antenna: One BTS is connected to a GPS antenna, and the other BTSs
are chained (up to 4 additional BTS) to the first BTS using an outdoor CAT5 cable.
2.3.1 Installation Requirements
The High-gain GPS antenna is installed using a specially designed bracket and
a 25m cable. A second lightning arrestor is required with this configuration in
addition to the lightning arrestor already assembled on the BTS carriage (see
“Installing a Lightning Arrestor” on page 41).
The Basic GPS antenna is installed using a specially designed bracket and a
3m cable. No lightning arrestor is required with this configuration in addition
to the lightning arrestor already assembled on the BTS carriage.
For GPS chaining: outdoor CAT5 cable(s)
2.3.2 Packing List
GPS Mounting Kit: One of the following options:
Basic GPS Antenna
» 28 dBi GPS antenna
» 3m cable
» Pole mount bracket
» Two metal bands
» One Lightning Arrestor with 0.5m cable, including screws, washer, and
spring washer (UNC10-32)