User Manual

Understanding the Sector Radio Kit and the Antenna Interface Unit
IP-RN 8000 Installation & Commissioning Guide 13
Understanding the Sector Radio Kit and the Antenna
Interface Unit
This section describes the Sector Radio Kit and the Antenna Interface Unit (AIU). This section contains the
following subsections:
• Understanding radio sectors
on page 13
• Understanding the Sector Radio Kit
on page 14
• Understanding the Radio Module
on page 14
• Understanding the Power Amplifier module
on page 16
• Understanding the Antenna Interface Unit module
on page 17
Understanding radio sectors
The 360 degrees of horizontal radio transmission/reception is often divided into three 120 degree radio
sectors labeled: alpha, beta, and gamma. Different deployments may use a different numbers of sectors, and
each sector can provide a different amount of radio coverage. For example, an omni antenna can provide 360
degrees of radio coverage and only uses a single sector. Each sector requires:
• Installation of a Sector Radio Kit.
• Connection of the Sector Radio Kit RF transmit and receive antennas to the cell tower antenna cables
through the Antenna Interface Unit (AIU)
You can install one, two, or three Sector Radio Kits depending on deployment requirements. Typical
deployments use all three sectors and provide 360 degree radio coverage.
There is no requirement that single-sector deployments must use the alpha sector. Sectors can be installed
and deployed in any order. However, as a convention in this guide, single sector deployments always use the
alpha sector.
Table 8
shows the slots into which you install Sector Radio Kits for one, two, and three sectors of radio
coverage.
NOTE
For information about installation processes and procedures, see
Understanding the installation process
on page 40.
Table 8 Radio sector installation guidelines
Sectors utilized Install Radio Sector Kits into these slots
Alpha 1
Beta 5
Gamma 9